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Dual NICS DHCP Address Pool Problem? Routing Problem?

Q: Dual NICS DHCP Address Pool Problem? Routing Problem?

Hi Again,

I've done a couple of other posts today, which I think I have isolated the problem, I'm just not certain how I should go about fixing it.

I have two NICs on a server running Windows Small Business Server 2003.
One of them has an IP of LAN)
The other has an IP of WAN)

From my server I can ping both and get a reply.
From inside my network I cannot ping the

How can I make these two cards communicate properly?
Where in my Server Management can I fix this.

Thank you.

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A: Dual NICS DHCP Address Pool Problem? Routing Problem?

This looks so similar to http://forums.techguy.org/networking/581105-router-cant-seen-server.html that I requested this thread to be closed or combined.

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This morning at work, I couldn't connect to our office network server. Turns out...DHCP, which issues static IP Address's to each work station when they log on, couldn't issue one to me because the pool was 100% full.

But, our office has only has 8 workstations; & the range of IP Addresses was 150 long!

I reduced the range to 100 Addresses; & refreshed DHCP to get back on the network...

...but, has anyone ever heard of this malady? Was there a cause; & can it happen again?

Thanks much,


A:DHCP IP Address Pool @ 100%

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operating system - Windows XP

i'm having trouble with my wireless connection.
i was reading on how to improve download speeds from another forum,
which told me to type in into my internet browser and i did, but when i got there, a HUGE mistake on my part, i messed with the configuration settings on what i'm sure was the IP address or router or something. anyway right after doing this i got kicked offline, and now i can't sign back on with my wireless connection.
i tried the IPCONFIG "release/renew" thing, but it says cannot renew IP because it's "unable to connect to my DHCP server"

please, if anyone can help i would be very happy. thank you...

A:HELP!! IP address /DHCP problem

If that was the IP address of your router, and it got changed, you may need to reset it back to the factory setting.

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hey guys .... i have dsl running in my office thru mpower communications ... since a week ago ... i can't connect to the internet ... in the notification area ... (icon with two monitors), the "sending" part is flashing but not the "receiving" one ... when i do the ipconfig/all, i get the 169 ip address, ... i did the loopback address and i get all the replies ... i manually configured the ip setting but still the same thing. i ran the winsock fix ... same thing. the funny thing is i took the computer to the other location and i can connect to the internet. and according to my co-worker, two days ago mpower tech came to my office and ran the internet connection thru his laptop and it worked ... so i don't know what the problem is ... is there something in the registry that can prevent communication with certain modem? i've done pretty much all the possible fixes and i just can't get it to work ... i used a cd, that's included with the router, that can check the internet connection but couldn't get it. does anybody know how to fix this thing. thank you

A:dhcp problem ... assigning 169 ip address!!

When you manually enter in the IP information , can you ping other local computers by IP address.

Can you ping the IP address of the gateway (router)

Can you ping the actual external DNS IP addresses

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Hope someone can help. I have searched the forums for an answer but haven't seen my exact problem.

I have an HP Pavilion running Windows XP and a cable modem connection to the internet through my ethernet card. The internet connection has been going fine for the last several months.

Yesterday, after cleaning out some junk my kids had downloaded on the computer and uninstalling some old, unused programs, my internet connection suddenly stopped working.

I tried the usual fixes (turn modem off and on, reboot computer, check wires, etc) then called my cable company. I spent a lot of time with the tech and here's what we came up with. My computer is unable to obtain an IP address from the ISP and the problem is not on their end. In checking the status on my services, the DHCP Client service shows as "starting" but never actually starts. It is set to start automatically. The tech thinks this is the reason I cannot obtain an IP address.

The question is, is there any way to fix this short of reinstalling Windows XP? BTW, I do have Zone Alarm, but the problem persists even when I turn off Zone Alarm.

Any help would be much appreciated.


A:Can't get IP address (DHCP client problem)

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I have virgin media cable broadband size L (4mb) at home with the standard cable modem which was provided by NTL few years back and a Linksys WRT54G broadband router. All works perfectly have one PC directly connected to router and another PC and a laptop connected wirelessly. DHCP assigns each computer with an ip address etc.

My friend next door has cable broadband size XL (10mb/20mb not sure if it has been upgraded yet or not) he also has the same modem which was provided by NTL few years back and he has a very similar router the Linksys WRT54GS(one with sppedbooster).

The problem first occurred he tried to connect his xbox 360 to his wireless router, It wouldn’t assign an ip address, whereas if he connected to my router he had no problem at all. This was strange I thought because I set up his router and all the settings were the same as mine at home. I then tried to connect my laptop to his router, and the DHCP wouldn’t assign me an ip address, it either gave ‘invalid ip address’ or assigned me a private something address starting with 169.1…… and it would say ‘limited or no connectivity’ – which was no connectivity. We worked out that only one piece of equipment could be connected at once to his router, so the xbox would work if you disabled the network connection on my frinds PC which was connected directly to his router.

The only thing I could think of was that the router was faulty, so I swapped over the two routers and too my surprise my rou... Read more

A:Interesting problem with connection, ip address?, DHCP? help?

The first thing that comes immediately to mind is that at your friend's the modem is connected to the router's LAN port, but at your house it is correctly connected to the WAN port.

How about showing for a PC at your house and one at his house ...

Start, Run, CMD, OK to open a command prompt:

Type the following command:


Right click in the command window and choose Select All, then hit Enter.
Paste the results in a message here.

If necessary use a text file and removable media to copy the results to a computer with internet access.

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I have two NICs, and my wifi NIC Can I route between these two NICs to
be able to ping from my Physical HOST to any host on while using VMs?

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Hi all

The nightmare begins: I turned my computer on last night and my interweb had broken!!! It was working the day before and for a good 6 months prior with not a hiccup. I've noticed that a million and 10 people have a similar problem.

I have a professionally set up simple home network between my own computer (Dell Inspiron Windows XP SP2) and my brothers Dell laptop (Windows 7). Brothers laptop WILL still connect to the internet fine.

We run a Dynalink ADSL2 Router to an 8 port Switch and then to our computers - yes, we use cables!

I'm on my work computer at the moment.

My computer still seems to be able to talk to the modem, it will detect an IP address and Subnet mask but then when it starts to locate the DNS is just gets stuck on 'Aquiring Network Address' for 5 minutes and cuts out with 'Limited or No Connectivity'. The latter being the case.

I am getting a 169.254.x.x IP address though. My brother's is totally different, starting with 198.... My subnet mask is

I've run every antivirus and spyware scanner I have. No baddies detected.
My Detect IP are all set to automatic. Everything is ticked where it's meant to be.
I have Enabled the NetBIOS whatsit.
DHCP is enabled.
I've 'Repair'ed till I'm blue in the face.
I've tried several different ports in the switch in case one was faulty.
I've done all the shutting down and starting up in sequence.
I've tried switching off fir... Read more

A:Acquiring Network Address - can't locate DNS/DHCP problem?

It could be a driver problem, so install the latest for your ethernet or do the System Restore you mentioned.

You are right to try different switch ports; best to (temporarily) use one that you know is now working. Same for the cable--make sure it is good by testing with another computer.

If you have a non-Windows firewall it could be corrupted so best to test by un-installing it and running the Removal Tool if one is provided.

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One of my Windows 7 PC's receive an IP address / Subnet mask: / Default gateway & DHCP server

However my DHCP server + default gateway is and distributes IP addresses in the range 10.0.0.x (and subnet mask My other Windows 7, Windows 8 and Windows 10 PCs receive correct IP addresses from my DHCP server. All PC's, inclusive
the one that gets an incorrect IP address, are on the same network.
It has worked before. I can enter a static IP address + subnet mask + default gateway (what works) but that's not the purpose of course. 
Anyone can please tell me what's wrong with this one PC?

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Hi, I am having a problem setting up a route between to network cards with windows 7. I am on a networkengineering course and we have just set up our own servers SBS2008 i have to NICs in my windows7 box on connects to the proxy then out to the internet then the other connects to my server i am tring to route from my server thru the windows 7 box out to the internet I have set up the routing tables on both machiens however there is still something stopping communication between the two NICs in my the windows 7 box please help

routing table on windows 7 281 On-link 276 On-link 276 On-link 276 On-link 306 On-link 306 On-link 306 On-link 281 On-link 281 On-link 281 On-link 281 On-link 281
255... Read more

A:Routing two nics on win7

sorry rout on server has typo 21

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I am running into a problem where my machine keeps assigning an automatic private internet address rather than getting an address from DHCP. My computer seems to "see" the router (link light goes on and off when I plug/unplug the cable, the network indicator in the system tray goes live/dead), but it won't acquire an address, and I can't log into the router control panel when I type in the address of the router in a browser.

I don't want to lead anyone down the wrong path, but this error appears to have started after running Bootvis. The connection was running perfectly until I ran Bootvis. This is the second time I've had the problem -- I did a clean install of XP to fix the problem the first time. I think it also happened shortly after running Bootvis the first time, although I didn't put two and two together at the time and associate the problem with Bootvis (hence, completely reinstalling XP). After spending the better part of a weekend reinstalling and configuring XP, I'm hoping there's an "easier" way to fix it this time.

Here is what I've tried so far (all to no avail):

- Rebooted (several times)
- Unplugged/plugged/rebooted/reset/power cycled router (several times)
- "Repair" the network connection (under local area connection status)
- ipconfig /release, /flushdns, and /renew
- went to the Services manager and clicked "restart" on DHCP Client and DNS Client

FYI, the other computers on... Read more

A:Automatic Private Address, DHCP Error -- possible Bootvis problem?

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I hope this is the correct forum as it is Regarding Windows8 Administration

I have two NICs, and my wifi NIC Can I route between these two NICs to be able to ping from my Physical HOST to any host on while using VMs?

I know there are many other ways but I need that way because I run IOU integrate it with GNS3-Remote server and I want to capture traffic and send it to my Desktop. Also, I know I can use UNL but for now I need to have a route between these two NICs.

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I have a Windows 2000 server running RRAS and DHCP server servcies and it has two NICs plugged into two different networks. How can I stop DHCP serving on one of these NICs as it has it's own DHCP server. I only want DHCP available on one of the networks and let users authenticate to AD from both. Any advise would be apprecaited.

A:Disabling DHCP on one of the NICs

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HI, here's my problem:
Have NT 4.0 sp6a and two nics
I want to config one w/ static ip and connect it to my LAn. The other using DHCP and connected to the cable modem. SO I want the static ip nic to be the proxy server I guess, and acting as a firewall. The problem is that when I run DHCP server service, I can no longer change the NIC to select the "get Ip from DCHP server" option (it's greyed out). What must I do to give one nic static IP, and the other dynamically assigned? I am running tcp/ip, and netbui protocols. Do I need to disable somthing in the bindings and restart to make the other nic able to choose to be assigned it's IP by the server, or..?????

A:{advice Given} - 2 Nics & DHCP

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Hi guys,

I have a server running Windows 2003 Server. It also has multiple NICs. What i want to accomplish is connect this server to my network, have that NIC get DHCP information. Then out of the other NICs have this server supply DHCP to anything that connects to it. Essencially, have this server connect to my network with a 192.168.0.x ip and host out of its other NICs a 10.x network with out dissrupting my current network.

I hope that isn't too confusing.


A:Solved: DHCP with multiple NICs

What was the solution?

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I have a home network that consists of 5 pc's and 1 video camera DVR (which is network ready). I use static ip addresses for each node beginning with since my active IP range is - One of my PC's has dual nic cards, one being a wireless nic and one standard nic. The wireless nic ip address on this PC is currently and I am able to access the internet through it fine. The other standard nic which uses IP, I want to use to hook to my camera DVR (which has its own IP address as I wired it up and enabled the nic and was able to ping to the DVR from the PC, but when the 2nd card is enabled, I lose my internet connection. The wireless card still shows connected to the wireless network, but its as if the PC is trying to use the wired connection to access the internet instead of the wireless one, and since the wired nic is only hooked up to the DVR, obviously it can't access the WAN. I tried bridging the connections in XP but still no luck. And the strange thing is that I can get to the DVR using other PC's on the network which means I can go through the wireless nic, the wired nic, to the DVR from any other PC in my house.

Here is my setup:

PC-(2 NIC's)
Wireless NIC- - mask- - gateway- (wireless router)

Wired NIC (running to DVR) - - mask - gateway-

Wired NIC- - mask -... Read more

A:Dual NIC Cards - IP address problem

Remove the Default Gateway from the wired NIC configuration. You probably also want to configure that NIC to be in a different subnet than the wireless NIC that is connected to the Internet, I suggest 192.168.1.x

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I have two computers, a desktop running Win XP SP3 and a laptop running windows Vista UE. Both the machines have independent internet with different ISPs. The Laptop connects to a wireless network. I recently tried to network the two computers by adding additional NIC to my desktop and wiring it through the router. NIC 1 connect to internet through cable and NIC 2 for Home Network wired to the router. I succeeded in networking the Desktop and Laptop and also disabling internet sharing as i dint want 2 ISP on my Desktop. Now the problem is, on my desktop I have my internet connection working through another Lan card and different ISP, so when I'm connected to both the networks ( Internet and Home Network ) the internet seems to work but not the home network. Neither the Laptop or Desktop can connect to each other ( not even see each other ), though they can ping each other and also the Router. Both my NICs are configured with static IP. Home network works fine when I'm not connected to the NIC 1 connection (Internet) on my desktop. I also removed the default gateway from the NIC 2 connected to home network.

Also another thing that i noticed is that if i connect to the NIC 1 then to make my home network work I'll have to not only disable NIC 1 and Enable NIC 2 ..., but also restart my machine...otherwise it wont work.

Is there a way I can make them both function together and properly.
Thanks For Taking out Time and Reading My Long Post.

I have been trying ... Read more

A:Problem with 2 NICs

You need to do a manual configuration of the direct link.

Configure the direct link's TCP/IP as follows, leave the Internet connections the way they are..

PC #1:
IP address:
Subnet Address:

PC #2:
IP address:
Subnet Address:

Leave the Default Gateway and DNS Server addresses blank.

Under Advanced Properties, on the WINS tab, make sure that NETBIOS over TCP/IP is enabled.

Make sure any firewalls are configured to put the 192.168.9.x subnet in the trusted zone.

Finally, you'll have to enable fine/print sharing on the machines and actually share one or more folders or drives.

This should allow Internet requests to go to the ISP connection on each machine, and file/print sharing requests to be handled across the direct link.

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I had an issue with my windows server 2008 machine recently. the machine has two NIC (1 onboard and other pci network interface card )

so i notice that whenever i connect the two nic's (local and internet)
my clients or workstations on the local area subnet cannot access data or
even ping command to the server but if i remove the internet NIC they can
access data and information successfully> pls wat is the way out

A:problem of 2 NICs on Win Server

Hi, hopefully this will help you understand what is happedning.

When I set up my first service running 2008 with two NICS, I had a read of the following. Please note it is quite detailed, but it's a great education resource and should help you get your head around what's happening.

You didn't say if your clients are using DHCP or static addresses, or if both the NICs are configured on the same or different subnets, or of there are any switches or routers in the network, so I'm making a number of assumptions here.

Using the multiple NICs of your File Server running Windows Server 2008 (and 2008 R2) - Jose Barreto's Blog - Site Home - TechNet Blogs


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I was wondering if there are any know issues with XP pro support for dual nics
the reason I ask was because I had a problem with the cnet pro 200 nic
working together with a U.S. robotics wireless nic in the same machine so I
tried a linksys nic (same speed) and it worked fine and the nic I took out of the machine (cnet pro 200) it works too but not in a dual nic config


A:dual nics

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I think I know the solution but I thought I'd run it by you guys...

I have a PC with two NICs - each with it's own V4 ip address on two separate networks. The PC exchanges information on the internet with one card and shares files on a local network with the other.

The PC will run for a few days with an internet connection then the connection will stop. Both networks have an internet gateway through a router onto separate internet service providers.

The question is: How do I prevent the loss of an Internet connection on this PC? I do not need two ways to access the internet on it.

I suspect the solution is to either remove the NIC's gateway address setup on the local file-sharing network or program the file-sharing network router to block internet access to/from that PC. Or possibly both.

Am I on the right track??

A:Problem with two NICs - internet connection lost

Correct, you remove the Default Gateway and DNS Server addresses from the interface that you don't want to try to connect to the Internet.

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It seems that when a machine has dual nics it likes to share that fact with other machines. Here's my scenario:

I have a server, ServerA, with two nics. One with a 150.102.x.x address to the corporate network and one with a 10.x.x.x address for a private network.

When I map a drive to another server, ServerB, over the 150.102.x.x nic it also seems to share the fact that it has a 10.x.x.x interface too. Where I see this is on ServerB. If I do a netstat command on ServerB, I will see both ServerA addresses at the time of mapping the drive and periodically at other times.

Is there some way to setup ServerA so that the two nics are totally isolated from each other. I would have thought that would be default behavior but it doesn't seem to be. Since seeing this issue I have setup other similar scenarios with the same results.


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Im shopping for a new mobo and am starting to see them coming out with two nics more and more. I am wondering what can be done with them?? Can you bind them for double the throughput? Or what do most people do with them? I have a FIOS connection and am curious if this will help me utilize it to its fullest......

A:Dual Nics on a Desktop Mobo

Truthfully, for most people, there's nothing really useful about the dual NIC's. I have one disabled on the machines I have here, just to keep it out of my way. You won't see any performance increase for FiOS with multiple connections. I have gigabit Ethernet in my network, and 20mbit FiOS connections. Obviously, the bottleneck is not the gigabit Ethernet.

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It seems that when a machine has dual nics it likes to share that fact with other machines. Here's my scenario:

I have a server, ServerA, with two nics. One with a 150.102.x.x address to the corporate network and one with a 10.x.x.x address for a private network.

When I map a drive to another server, ServerB, over the 150.102.x.x nic it also seems to share the fact that it has a 10.x.x.x interface too. Where I see this is on ServerB. If I do a netstat command on ServerB, I will see both ServerA addresses at the time of mapping the drive and periodically at other times.

Is there some way to setup ServerA so that the two nics are totally isolated from each other. I would have thought that would be default behavior but it doesn't seem to be. Since seeing this issue I have setup other similar scenarios with the same results.


A:isolating networks when dual nics

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Does anybody know if a box with dual NIC cards can be configured to obtain an address form different sources? and If it can be done How to accomplish this?
Your advise will be appreciated

A:{Advice Offered} - Dual nics on a machine?

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I'm running a server with Windows Small Business Server 2003 and am attempting to serve my website out to the internet. It has dual nics and is supposed to run in the following fashion.

Modem->Router->Private LAN on router->WAN port on server->LAN port on server

My WAN port on the server has an IP address of, and the LAN port has an IP of

The Private LAN end of my router has an IP address of, I use this as the gateway from my .39 card. The WAN on my router goes to my static ip address, which is on a different subnet(.252).

In this fashion, I can browse the internet from inside my network, however, my website(static IP addy) cannot be viewed by the outside world. (It comes up with a 403 forbidden and bring up my router page if I type it in from inside my network)

If I take the router out, and give my WAN port on my server the static IP address and subnet of .252, my website can be viewed fine. (and I can obviously access the internet fine)

I have added the .39 IP addy into the Virtual Server table on my router, still with no luck. This leads me to believe that there is some kind of issue between the 0.1 card and the 0.39 card.

I had this running through the router a couple of months ago, with the old IP address (.0 subnet), but I can't remember what I did.

Any suggestions would be very much appreciated?

Edit: My router is a DSA-3100 Ver.B1

A:Hosting website through dual NICS and a router

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Every motherboard in my home network has dual nics, which up to this pnt, has been completely pointless.. Wondering if that is still the case. At work, we team our nics for fault tolerance which also lends the potential for better speeds. As most motherboards these days come with dual nics, I am wondering when Windows will come up with a decent way to make sense of that hardware.. Anyone??

I will be traveling all day today, so won't be able to reply back to this thread.. however, will look into it tonight..

A:Is there a way to team or aggregate dual nics in win7?

Well, for most businesses with servers the NICs are often teamed for 2 purposes. 1 for fault tolerance...so if 1 nic fails the box continues to run and service the network. 2 for aggragating and getting speed increases. For example, a mail server or SQL box could have a need for more bandwidth than can be supplied by 1 NIC. However, in the aggragation sense...this is mostly for internal networks where there is tons of internal traffic.

It's highly unlikely that a home computer could be completely saturating a 1gbps network link...as most hard drives cannot even supply the data fast enough to saturate a single connection. Next, most home users network traffic goes out to the Internet...and with this..you are obviously limited to the bandwidth that your ISP provides....which comes nowhere near the capacity of a single NIC.

Finally, in order to actually aggragate NIC's, you have to have a switch which allows this functionality...and most people aren't investing in gear of the caliber for their home use.

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As requested, here are the answers to the basic Network Config questions:

1) My issue is with wired networking (gigabit ethernet)

2) ISP: Comcast

3) Cable broadband Internet

4) Modem: Motorola Surfboard
Router 1: TP-Link Archer C8 Dual-band Gigabit & wireless
Router 2: Belkin N600 Dual-band & wireless

5) Firewall & Antivirus disabled for this process

The rest are configured correctly.

Here's the issue I need help with: I have a few machines that have dual NICs. My intention is to use the second NIC on each to connect to a second router that's connected to my cable modem, such that I can use one NIC for ordinary Internet browsing, etc and the second NIC for use with a *software* VPN service (requiring configuring one of my browsers (either Opera or a portable Firefox installation) to use the proxy at all times).

Since both NICs and both routers need to connect to the same cable modem, I have the modem connected to a switch to distribute the single modem signal to both routers. Q1: Is this correct or is it a mistake?

Naturally, I have setup the two routers to use two different subnets and gateways and IP address ranges. The ordinary-use one I've set the gateway IP to (with the IP range starting from 1.101 ) and the second router's gateway I've set to (with the IP range beginning at 2.101).

(Note that I usually disable DHCP and use static MAC<->IP address binding, since I essentially never nee... Read more

A:Using Dual NICS under Win7 for normal & VPN Internet connections?

So I'm going to ask you a question. Why? Why do you want to setup such a complicated network, that will not even work? You can do multiple things with one connection, normal browsing and VPN though one connection. Using two connections for two different purposes will not bring any extra benefits and as you have found out, does not work.

Now as for why you cannot connect to the internet with both active, Windows just doesn't know which network it should try and use, they are two district networks but both have internet access....which do I use?! *Amendment: You might get it to work if the second NIC does not have a gateway set. Just IP and subnet.

The point of having two NICs is for fallover, load balancing, or multiple networks (without internet access on one of them). Not...for whatever it is you dreamed up.

The only real way you are going to get this to work is if the VPN router does not advertise there is internet on the other end. However, I cannot really tell you how to make this work, even tho networking is one of my things, I would never in a millions make something as complicated as this. I live by the policy: KISS, for this kind of stuff.

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Hi Friends..
I ve a problem between two of my servers both run Win2003 server.ServerA( connects to Internet with ISDN, ServerB( connects to Internet with dial-up modem. ServerB has a gateway( and ServerA has a gateway ( The problem is I can never ping ServerA but ping other servers there(192.168.0.x)....What is the problem???Explanations enough??

A:Routing problem

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I need a few troubleshooting ideas... (or some ways to find out what the problem is) my friend has a routing problem (I'm sure) and when I go to the ip config on run it says that her ip routing is not enable... she has a xp laptop and she says that she knows that the router is working because the other laptop is online and running just fine off the same router. So how do I fix the connecting problem from her laptop to the router? how do I find out what's wrong with it? would appreciate any and all advice!

A:routing problem

I think that this post requires a little more clarity. Perhaps even simplification.
For one, IP routing should not be enabled (unless using ICS).

Is your friend trying to connect to the router wirelessly or through a network cable?
Could you give us the IP address, subnet mask, and gateway listed in her IPconfig?

Is this the same subnet and gateway listed on the computer that IS working?

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I recently switched to DSL and working on getting my home network working again. I have a Westell Dual Connect 2200 (which has a router built-in) DSL modem that I switched to bridge mode and configured my Netgear MR-314 as the PPP with all the proper settings for it to work on my computer that is physically connected to the Netgear router, but my two wireless computers aren't getting a connection. I looked at the Netgear DHCP table and no IP's are listed at all, what am I doing wrong? I really need help.

A:Routing Problem...

The thread title is very misleading. Your problem is not related to routing in any way. It is a problem with wireless networking.

The basic things to try: to the wireless computers show a signal? Can they find the network? Have you enabled encryption on the access point? Can you get it working without encryption? Have you enabled DHCP on the router?

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I have a WAN with three subnets. Subnet 1 is on the westside as 200.200.15.x. Subnet 2 is on the eastside as 200.200.4.x. Subnet 3 is downtown as 200.200.1.x.

Subnet 3 (1.x) is a data processing house and my most critical connection. Subnet 3 (1.x) is also providing a frame relay connection between subnet 1 (15.x) and subnet 2 (4.x).

Three routers manage the route between the three locations. Router 1 ( router 2 ( and router 3 ( These routers are configured, functioning and re-configuration is not permissible.

All my hardware has static ip assignments. This is a requirement of my data processing house.

My Win2K server ( resides in subnet 1 (15.x).
My Internet connection is a Cisco 678 ADSL modem ( in subnet 1 (15.x) connected directly to the LAN.
My client PCs are primarily Win9x, in subnets 1 (15.x) and 2 (4.x).
Zero PCs (none) reside in subnet 3 (1.x).

Here is my dilemma.

If I set my default gateway on subnets 1 and 2 to router 3 ( I establish the route between the three subnets but I fail to establish a route to my Internet connection.

If I set my default gateway on subnets 1 and 2 to the modem (, I establish the Internet connection but fail the route between the three subnets (this connection is critical).

The first option, establishing the route between the three subnets, appear to be the most prudent because, 1) the data services are most critical and 2) this rou... Read more

A:I have a ip routing problem

Have you tried using DNS and/or the hosts file? since you cannot configure either routers (as you said) setting up a Gateway of Last resort is out of the question (Right?).

I would leave the default gateway local for each subnet and then add the addresses for each of the remote subnets in my local routing table. Please try the following links:



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I have a local network here, with a server that is connected to internet through a dedicated line. The thing is that I want to share this connection with the other computers in the local network.

My server has 2 network adapters: one is connected to the cisco router and the other to the local switch.

At Network and dial-up Connections (Win2000 running on the server) I have two connections: one is configured for internet (with a fixed IP, mask and gateway), and is shared, and one for the local network. This one has
and gateway is the statical IP of the cisco router.

What happens is that I can access the internet from the other computers for a few minutes, then it is lost. I can ping the server, on the local adress, but no DNS or any other external IP, from the other computers. To have it work again I must disable the local connection from the server and enable it again. Then it works for a few minutes and the story repeats.

How can I solve this? I was told that it is possible that the frames are routed on the wrong way, and I should disable the second connection and use instead statical routing to However, don't know what this means and how can I do it.

Any help would be greatly appreciated.
Thank you.

A:lan routing problem

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I have DSL ROUTER Connected to internet and TPlink router connected to DSL ROUTER and users are connected to TPLINK ROUTER Lan ports.
Configuration are:

TPlink router:
Wan ip:
Lan ip:

Users ip range:

My problem is this i cant ping network from user can ping DSL ROUTER From their side.

I also tried to make Static route in DSL ROUTER But still no luck.
Please help me.
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A:Routing Problem

Hi magnitude, and welcome to TSG.

Router #1 is using a function called Network Address Translation (NAT) in order to get all devices with addresses in the - range on its LAN side to work through its single 192.168.12 IP address on the WAN side. This hides the IP addresses of devices on the LAN to connections coming in from the WAN side and forms a natural firewall.

You would need to set up port forwarding on Router #1 so that incoming connection requests to a given port on its WAN side get forwarded to a given port number on device with a specific IP address in the - range. Those devices would need to have DHCP disabled and have their IP addresses set to be unique in the - range but outside of the DHCP range of the router if its DHCP server is left operating.

You would also need to set up port forwarding or a DMZ on the Modem/router if you want incoming connections from the Internet to access those devices.

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some times when i am searching for a web page in a search engine...i am being re directed to a web address is not available and the page is finally re directing to http://apps.facebook.com/getmefurian/. this problem is mainly happening when i first open my web browser and some times in the middle also..
please help me in fixing this problem as i am facing a lot of problem with this.

A:re-routing problem

DownloadTDSSkillerLaunch it.Click on change parameters-Select TDLFS file systemClick on "Scan".Please post the LOG report(log file should be in your C drive) Do not change the default options on scan resultsDownloadaswMBRLaunch it, allow it to download latest Avast! virus definitionsClick the "Scan" button to start scan.After scan finishes,click on Save logPost the log results hereDownloadESET online scannerInstall itClick on START,it should download the virus definitionsWhen scan gets completed,click on LIST of found threatsExport the list to desktop,copy the contents of the text file in your reply

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Intel didn't certify drivers for these cards on 2012 or W8 and I'm not interested in buying new NICs (at enterprise/server grade prices) for a development environment.

Has anyone gotten them to work properly?

I also have a bunch of MT NICs as well but those are really old so I'm not worried about those but the PT NICs are the biggest thing I'd like to get working (duals on W8 and quads on 2012).


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I am connecting several Windows 7 laptops via wireless to a wired network of XP machines. After several frustrating days trying to figure out why I couldn't see shares on the network I think I've finally caught the culprit: the netbios master browser. Can anyone shed some insight into what's going on below.

The wired network is a group of XP machines attached to a NAT router which provides DHCP addresses to the network. They are part of a workgroup and so there is no Domain Name Server attached. So long as this was just an XP network everthing worked fine, but it all went south when trying to attach the Windows 7 laptops.

I read that I would need to install the LLTD Responder onto the XP machines so I downloaded it from Microsoft and performed the installation which seemed to go smoothly. Except that it didn't seem to help anything get discovered. Then I read that I'd have to enable NetBios on all of the machines (not the Default option on the Wins tab, but the actual Enable option just to be sure). Still no connections. I checked system services: Computer Browser is running and so is TCPIP NetBios Helper. I made sure that Network Discovery is on under the advanced sharing tab on the Win7 machines. I switched off the firewalls. Still no connections. I can ping all of the devices on the network, and I can even do so using host names, which seems to suggest that name resolution is working.

The Win7 system event log provides what may be a big clue to the problem: NetBT thr... Read more

A:Routing Problem Win7 and XP

Hello phuile,
The LLTD responder is only so that your XP machines will show up on the Windows 7 network map. If you can't get your Windows 7 machines to connect to the router wirelessly then your router is probably in need of a firmware update. What kind of router are you using for this?

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Situation is as follows.
Home computer running Windows 7 Ultimate x64, sets up VPN connection (LT2P + IPSec, "use remote gateway" disabled) to office. Subnet is 192.168.64.x
Office has Draytek Vigor 2920 router, subnet is 192.168.32.x
The VPN connection is established, but Windows 7 says "no network access" and indeed, I cannot ping anything on the remote network or open a website hosted on a remote server.

On Windows XP however there is no problem like described above. I can ping remote hosts and open sites hosted on remote servers. So it seems like there is a difference in the routing between XP and Windows 7 (maybe only on x64?).

The output of "route print" on Windows XP (32 bit) looks like what you see in routing_xp.png. So here the gateway for the 192.168.32.x subnet is the IP address that the local computer has in the remote network.

The output of "route print" on Windows 7 looks like what you see in routing_win7.png. Now the gateway for the 192.168.32.x subnet is the IP address of the VPN router (32.1). I don't know if that causes this trouble, but it seems a bit strange.

Enabling "use default gateway on remote network" doesn't make a difference. Using the new option "Disable class based route addition" in Windows 7 only makes the route to the VPN router disappear.

I am really puzzled here. I assume the VPN routing can't be broken Windows 7, and this should just work without ... Read more

A:Strange routing problem on VPN


After several weeks in which VPN's worked great between my Win7 Ultimate 64bit EN HP laptop and vigor 2920, it stopped working since this (or maybe last) week.
I'm having the exact same problem.
I noticed that the home or VPN gateway address (my home network is 192.168.1.x and the address range at my holiday network is 192.168.2.x) is not in the IP settings obtained by DHCP over the VPN. Also no route for is in my route list.
I manually added the home gateway ( but that did not help, though a route was added for through this gateway. A traceroute doesn't even get to the first hop.

I'll check if any Windows updates my be causing troubles. I haven't upgraded my Vigor in the meantime and I'm not aware of the exact firmware version. Help is appreciated.
Erik Dobbelsteijn

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i have a problem with my network routing.

we have a network of about 65 computers out of which around 40 to 45 use public ips others use private ips. we have purchaced band with from 3 isps.
and so we have networks with ips as following-

1. to 255 is one public ip network

2. to 125 is one public ip network to 33 is one public ip network network

4. to 255 is our private network.

when i route between all these network my network become slow yahoo messanger signs out and signs in.

when i ping yahoo -t the i get replay from yahoo ip but some times
i get request timed out and again i get replay from that yahoo ip.

our physical lan is cisco switched lan

and i have routed lan internally with windows xp and 2000 pro. as routers.

pls give me some sollution that my network runs properly.

A:problem routing in internal lan.

are they DLS lines? it could be the MTU issue. check this web site, http://www.howtonetworking.com/VPN/mtu1.htm

i would use private IP for the LAN.

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I have an HP Special Edition L2000 notebook running 32-bit Windows XP Professional Edition. Last night, XP told me that an Update was available, and after downloading the update, it rebooted. Now I cannot connect to the internet by any means (airmodem / tcp/ip LAN / WiFi).

At first I thought that I was getting a bad Verizon Wireless signal, so I rebooted into Linux and networking was still working just fine. So I brought the computer into the office this morning and booted to XP, and it automatically made a WiFi connection to my WAP, but I cannot connect to our http servers on our LAN nor to the internet. I opened a command shell and was able to ping other computers on our LAN ( If I open up a browser, the browser tries to dialup as if it doesn't recognize that it's already connected to a network. If I turn off the wireless, and instead plug in a CAT6 cable, the NIC shows all the right settings, but I still can't do anything on the net. I've also turned off Firewalling, but no change.

"ipconfig /all" shows:
DHCP enabled
Autoconfigured IP:
Default Gateway: (our LinkSys router bridged to DSL modem)
DNS servers:,,

A:routing/netoworking problem

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Hi I was wondering if anyone new how to sort this really frustrating problem. When I use any of the search engines for example google and clik on a link I am being re-routed to random websites that have nothing to do with what was originally searched. I assume this is some sort of spyware which is re-directing me. I have installed adaware and other anti-spyware programmes which have not helped. Does anyone know how to fix this problem?


A:Website routing problem, please help!

Hello m4bes
Welcome to TSF.Download ComboScan to your Desktop.
Close all applications and windows.
Double-click on comboscan.exe to run it, and follow the prompts.
When the scan is complete, a text file will open - ComboScan.txt
Copy and paste the contents of ComboScan.txt in your thread in the HijackThis Log Help forum.
A folder, C:\ComboScan, will also open. In it will be another text file, Supplementary.txt.
Please attach Supplementary.txt to your post.

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Here's the current setup:

Cable Modem -> Motorola Wireless Router (VT2542) ---> Linksys WRT54g with Tomato Firmware (similar to dd-wrt firmware) ---> Xbox

DHCP Server

Gateway: none

I have two computers connected to the Motorola router using Cat5 cables, and my laptop connecting wirelessly.

The Linksys router is connected to the Motorola as a wireless ethernet bridge. My xbox is plugged into the Linksys with a cat5 cable and can access the internet.

My problem is i can't FTP into my xbox from my laptop, and my laptop cannot login to my Linksys router while connected wirelessly to the Motorola. The only way i can connect to them is by plugging a cat5 cable into my Linksys router.

I think the problem is with static IP routing. I tried tinkering with it but can't get it working properly. Can anyone help me out here?

A:Static IP Routing Problem?

I don't think this should have anything to do with static IP routing. Can you PING the laptop from the XBOX? Can you PING the XBOX from the laptop?

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Hey guys,

I'm having some real trouble with passing cretin traffic through my firewall,

Before I continue I have to state I have expressed permission from our organisations IT Director to complete the task at hand.

OK so my issue is I'm trying to route certain packets through my fire wall but not having allot of luck.

here is what I have tried so far:

Option 1 - Proxy chain

(My Computer) --> (Organisations Proxy) --> ( External Proxy ) --> (Internet)

So I tried this first going through the (Organisations Proxy) HTTPS: Then to another proxy server (HTTPS returns this error:
Error: the proxy server (Squid) is not configured to allow SSL tunnel to port 80.
To fix the problem please find and comment the following line in the Squid
configuration file (squid.conf):
http_access deny CONNECT !SSL_ports
The proxy server reply header is:
HTTP/1.0 403 Forbidden
Server: squid/2.6.STABLE16
Date: Fri, 27 Apr 2012 03:40:59 GMT
Content-Type: text/html
Content-Length: 1042
Expires: Fri, 27 Apr 2012 03:40:59 GMT
X-Cache: MISS
X-Cache-Lookup: NONE
Proxy-Connection: close
So I contacted the IT Admin asking if it was possible to change the config file in squid, unfortunately he said it would open up a security risk, and he suggested I look into SSH / HTTP tunnelling to complete the task.

Option 2 - SSH Tunnel

I have a Linux server on the out side of the proxy/firewall that I successfu... Read more

A:Problem routing traffic through proxy

You mentioned that SSH doesn't natively support UDP, and this is sorta true, but sorta false. The way SSH deals with traffic lends itself to UDP tunneling, but the configuration is sorta long and complicated. It'll depend entirely on you having perms to modify both the server and local machine, so if you don't have server permissions for the network, you might want to consider doing it through your linux machine.

First, you need to connect the local machine to the server using SSH with -L added. This will let you use SSH with TCP port-forwarding.

local# ssh -L 6667:localhost:6667 server.machine.com

That will essentially force TCP connections on port 6667 of the local machine to be forwarded to port 6667 on the server through SSH. After that, you need to open a listener on TCP6667 to forward to the UDP default at 53. You can find the nameserver IP in /etc/resolv.conf.

You first need a fifo, though, so construct a two-way channel.

server# mkfifo /tmp/fifo
server# nc -l -p 6667 < /tmp/fifo | nc -u serverip 53 > /tmp/fifo

That will send the traffic to the server and redirect from 6667 to 53. Then, do the opposite on the local machine,

local# mkfifo /tmp/fifo
local# sudo nc -l -u -p 53 < /tmp/fifo | nc localhost 6667 > /tmp/fifo

That'll handle the UDP traffic, I think.

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Attached my home networks routing scheme.

recently i added a NAS(not NAT shown in the pic) to my network. so i set it up as shown in the scheme. However i have an access problem from PC1 to PC2 or NAS even after i set up the static routing on Router 1. same as pinging, i can't ping to PC2 or NAS from PC1. I have no problem accessing from PC2 to anywhere in the same LAN or higher level LAN

here is how what i set it on router 1:

Mask: ( i use mask for all devices)
Gateway/Next Hop:

I didn't do any static routing on Router 2. do i need so? if yes, what should i put it? or if there is anything else? Can anyone help? Thank you very much.

A:Home Static Routing PROBLEM!

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Hi All!
I have problem with vpn connection on Vista. I've used CMAK 1.3 to create connection. The connection creates two routes and does not change default route. This is the route file content:

add mask default metric default if default
add mask default metric default if default

On XP VPN connection works fine. On Vista I can ping and local network, but I can not ping external hosts. I get error 1231. This is route table if vpn connection is enable: On-link
This is route table if vpn connection is disable
If vpn connection is disable I can ping external hosts.

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OK, I have a Windows 2000 Server with 2 nics running Routing and Remote Access. 1 nic is set to 192.168.5.x and the other is set to 192.168.1.x. On the 5.x side on the client computers, I can ping and connect to any computer on the 1.x side. But not a single computer on the 5.x side can ping or connect to any printer on the 1.x side. What's going on? Thanks.

A:win2k routing printing problem

anyone have any ideas at all? bump....

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I have attached a picture of this test network that I currently have. The problem is that I cannot ping from a host in vlan 101 to a host in vlan 201. Regardless if the host is in vlan 101 or 201, it can ping and

It seems like a problem with the router. The switch ports that connect the switches are tagged/trunked in both vlans, so I don't think the problem is with the switches.

There was a typo on the attachment, so I edited it, so that it was correct. Any suggestions? I will try and provide all the commands I used for setting up the router, since that would probably be helpful.

Here is the config:

Router#show running-config
Building configuration...

Current configuration : 908 bytes
version 12.3
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
hostname Router
memory-size iomem 15
no aaa new-model
ip subnet-zero
ip cef
interface Ethernet0/0
ip address
ip nat outside
interface Ethernet0/1
no ip address
interface Ethernet0/1.101
encapsulation dot1Q 101
ip address
ip nat inside
interface Ethernet0/1.201
encapsulation dot1Q 201
ip address
ip nat inside
ip nat pool G20 netmask
ip nat inside source list 1 pool G20 overload
no ip http server
ip classless
ip r... Read more

A:Cisco InterVlan Routing Problem

You need a NAT exemption rule for traffic going between the 101 and 201 subnets.

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