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2 Router Network, Secondary as DHCP Server?

Q: 2 Router Network, Secondary as DHCP Server?

Hi folks,

As I've said in the title, I'm looking to make a network with two routers but only having DHCP enabled on the secondary router.

Before I go any further I must ask: I have an Arris GT840A (sigh) as the primary ISP required modem. I'm currently connecting via wifi and sometimes have pings to the router coming back in the 1 - 20ms range for extended periods and it's decent. Other times I get a huge range of different ping times, often in the 300ms - 6,000ms range and sometimes even dropped.

Is disabling the DHCP server on the modem and relegating all local networking duties to my WRT54GV2 likely to alleviate this problem, or does this simply boil down to I'm screwed because I have to use this Arris modem?

Moving on with the primary question, here is my current setup:

Router 1: Arris GT840A
WAN IP: Dynamic / ISP assigned
LAN IP: 192.168.0.1
DHCP: Enabled
192.168.0.2 - 50

Router 2: WRT54GV2 (Connected to router 1 via WAN port)
WAN IP: 192.168.0.51
LAN IP: 192.168.1.1
DHCP: Enabled
192.168.1.2 - 50

With my current setup I have been able to ping both router 1 and 2 via wifi, but I have not been able to ping or connect to the internet at large. I have read a couple of different how-to's and other forum answers and feel like this is how I'm supposed to be setting it up, but it's still not working. Something that concerns me about this attempted setup is that it still is using DHCP from the Arris modem / router, and I'm really hoping to turn off all but the absolutely essential functions on that P.O.S.

What am I doing wrong and how can I do it better?

Thanks for taking a look & for any and all help!

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RELEVANCY SCORE 200
Preferred Solution: 2 Router Network, Secondary as DHCP Server?

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RELEVANCY SCORE 85.2

here is what happen, I am using internet and tv from the service provider, so they send me a new router which handle internet traffic and TV traffic, but since it already doing so much the technician told me not to enable the wireless function, else it might crash often.

so I have two router now,
router A handles TV and Internet (PS3 and A labtop)
router B handles wired and wireless internet ( I have it MAC enable, so ppl won't be able to access my wireless network from outside)

how should I setup so PS3 can access movies from computers behind router B ?

EDIT: I tried to make them within the same subnet

router A : 192.168.0.254 (DHCP 65-99)
router B : 192.168.0.1 (DHCP 100-120)

when I connect router A with B by connect ethernet cable by LAN, Router A is able to ping a computer behind router A, but the computer can't ping router A.

and computers behind router B has no access to internet, but is able to log into the router B setup page.
 

A:Need help to link two router within one network, and two dhcp server?

Please use edit rather than create another post.
 

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RELEVANCY SCORE 77.2

QUESTION #1:
Is it better to use Win2000 Server DHCP or DHCP from my Netgear wireless router?

#1 BACKGROUND:
I am currently in the process of setting up a Win2000 server on my home network which consists of four other 2000/XP machines.
The server is going to be configured as a domain controller and will utilize the Active Directory.

Should I use the Win2000 Server DHCP or stick with my wireless router as the DHCP server? What are the advantages/disadvantages to both and which would be easier to maintain.

QUESTION #2
Is a 550mhz PIII with 256MB RAM fast enough to make a good home server running Win2000 server?

BACKGROUND #2
The server is going to have (2) 120GB Western Digital 7200rpm drives with 8MB cache for storage and a single 60GB Western Digital 7200rpm drive for the OS and few other applications.

The server's primary function is to serve as a media server with an approaching 10GB of MP3 and music video files which is continually going to grow. Disk contention is at a minimum since there are only four PC's on the network. There will also be a lot of digital photos stored on the server and will also serve as a place to perform backups from the other four networked PC's.
 

A:Win2000 Server DHCP or Router DHCP?

We have a similar setup in our office using Small Business Server, a public IP coming into our router with DHCP turned on, connected to a NIC in the internal DHCP server (which is also running ISA). A second NIC in the server bridges to the internal hub to provide DHCP services to the clients. This way we control port filtering in 2 places and with 2 levels of NAT taking place we feel secure. It may be overkill but we're concerned that EVERYONE is trying to hack into ISA and DHCP servers connected directly to public IP that this setup provides an added level of security.
 

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RELEVANCY SCORE 70.4

Hi,
We have a Local Area Network at work and on this network we have a VM Server with Windows 2003 Server R2 that we plan on using for Active Directory and this server also has DHCP and DNS Server configured on it. 10.1.0.18 is the Server IP. NAT is not configured on the server but is configured on the router.
From this Network I have my own private address range 10.1.146.1-255
which connects to my NAT Router. I am able to get an ip address of 10.1.146.100 from the DHCP Server for my XP Client

interface vlan10
ip address 10.1.146.1 255.255.128.0
ip nat outside
no shutdown

Next I setup a second interface on my NAT Router.
Interface Vlan 300
ip address 30.1.180.1 255.255.255.0
ip nat inside
ip helper address 10.1.0.18
no shutdown

I set up the range on the same DHCP Server
When I connect my Windows XP Client to Interface Vlan 300 I am unable to get a DHCP address on this client but on the server it says that it received an ip address.
DHCP Server address
ip address 10.1.0.18
netmask 255.255.254.0
Gateway 10.1.0.1

DHCP Server Setup
Vlan 300
ip range 30.1.180.100 -30.1.180.200
Gateway 30.1.180.1
DHCP Options:
003 Router 10.1.146.1
006 DNS Server 10.1.0.18
015 DNS Domain Name SQA.com
044 WINS/NBNS 10.1.0.18
046 WINS/NBT Node Type 0x8



Any Ideas on how to fix this so I can get a DHCP address on Interface Vlan 300 I am assuming it is a configuration issue.
Thanks
Scott
 

A:DHCP Server behind a NAT Router

it's actually a routing issue; if you can add proper routing from the router to the server,
it will all work.

HOWEVER, it would be far easier to just place all systems in the same subnet.
 

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RELEVANCY SCORE 70.4

Is it better to have my win2k server distribute IP's, or my my router? Is there a difference? Are there any benefits or drawbacks from doing it one way or the other? What would happen if both are set for DHCP? Thanks
 

A:DHCP: server or router?

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RELEVANCY SCORE 70.4

I have an XP PC and a 2000 Pro PC connected to a Speedstream DSL Router that pushes out IP's and I am on the internet on both PC's.
I also have a 2000 Domain Controller server that is pushing out IP's.
I would like to connect them all together and use the server for DHCP. How do I stop DHCP on the router and have the PC's on the network get the IP from the server. I have tried to turn off DHCP on the router, but then I can't connect to the internet.

Thanks
 

A:DSL Router/Server/DHCP

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RELEVANCY SCORE 69.6

Hi all! I have two routers: One is a Linksys WRG54G with the Tomato firmware flashed. The other is a PC running the IPCop software.

Either would work fine on their own as a router. I'm wanting to use them both, though, because each offers different features.

Tomato has good QoS features, but IPCop has good URL filtering.

My current setup is this: IPCop is 192.168.0.1, Tomato is 192.168.0.2. Tomato is the DHCP server, and uses 192.168.0.1 as the default gateway. So all traffic gets passed through 192.168.0.1 (IPCop), it appears.

What I would like to have is ONLY web traffic going through IPCop. I guess I could do this by using it as a proxy server, and manually entering in the proxy settings on each computer on the network. That isn't practical, though, so I'm trying to think of a better way.

I have a hunch there's a fairly simple solution to this, but I can't quite peg it.

The goal is this: Have the Tomato router be the real "router" -- DHCP server, port forwarding, et cetera, but force ALL web traffic and ONLY web traffic through IPCop.

Any suggestions??

Thanks!
 

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RELEVANCY SCORE 69.6

Hi everyone, I have a Network Everywhere Wireless Router (model NWR04B) and I have 2 PCs (one wireless) and a PS2 hooked up to it. Currently the DHCP server is enabled, but I'm finding that the internal IP of my PS2 and computers keeps rotating and I keep having to change the port forwarding IPs to match the changing ones. It's a big pain sometimes (especially with some PS2 games). My question is, when I disable DHCP, how do I configure my PC and PS2 to use an IP not assigned by the router? I have not tried yet, but I don't want to take any chances so I'm asking here first. Thanks in advance.

-dpvu
 

A:Disabling DHCP Server on Router

You don't need to switch off DHCP server in the router.
Just reduce the IP addr range the DHCP issues (say to 192.168.1.2 - 192.168.1.50). This is described on pg 34 of the user manual under DHCP. Then in the PCs configure them to have manually set IP addresses (rather the automatically obtained IP addresses) such as 192.168.1.100, 192.168.1.101, etc. Thereafter you will not need to adjust the port-forwarding as the router will never issue addr 192.168.1.100, etc.

In the PC you'll need to set the IP configuration parameters on the Ethernet adaptor. e.g. on XP: under
Start / Control Panel / Network Connections / LAN or High-speed internet,
locate your connection, do Properties / General / Interner Protocol (TCP/IP) / Properties and set the IP details you require there. I am not familar with the PS2 so cannot say where it's done on that device.
 

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RELEVANCY SCORE 69.6

Hi,

I have a Cisco 1812 router that am looking to enable as a DHCP server, a question I have that I cant seem to find the answer for is;

Can I bind a single port to broadcast the DHCP messages like you can on a Windows Sever?

Any pointers would be great.

Many Thanks
Karl
 

A:Cisco Router DHCP Server

It's been a while since I have configured DHCP services on a router or switch. But from what I remember, the router or switch will know which interface to answer on based on the scope(s) you have defined in the DHCP configuration. Say you have two interfaces with one on 192.168.0.0/24 and another on 10.0.0.0/24. If you define a DHCP scope to hand out addresses in the range from 192.168.0.10 to 50, the router/switch will know to answer DHCP requests on the interface configured on the 192.168.0.0/24 subnet.
 

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RELEVANCY SCORE 68.8

Is the number of DHCP pools limited only by the amount of RAM or is there a set limit you can have depending on the router model?
 

A:Cisco router question (DHCP Server)

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RELEVANCY SCORE 66.4

The Server went down - it is at shop for repairs. Meanwhile everyone can acecss internet fine - router is the DHCP and DNS server. However today one computer on the network is getting an APIPA address and can't ping the default gateway or any other computers on the network. Loopback ping works and device manager indicates network card is working correctly. Checked cables. Uninstalled and reinstalled network card. Rebooted several time. Anyone have any idea what to try next? All other computers on the network are accessing the internet just fine.
 

A:one computer on network can't get to DHCP server

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RELEVANCY SCORE 66.4

Hello Everyone,

We our setting up a Training Company to assist unemployed IT people in the Silicon Valley area of California. Our group is very small and having a hard time even getting our network here started. Here is the problem: We have Windows 2003 Server Enterprise 180-day usage disc (from a book we bought to learn). We have 5 static IP addresses leased from DSL carrier. They are for example: 65.123.141.10 thru 65.123.141.14 with a gateway of 65.123.141.9 [these are only IP numbers used for example to prevent hacking] my subnet mask is 255.255.255.248 We tried and tried for 2 weeks now and still can not get the complete network to work. We need: Step1.) The server to be secure with a firewall (but willing to forgo that and add later) Step2.) the server to issue Ip addresses from a pool of 192.168.0.10 thru 12 to 3 workstations running XP(we decided to make the server 192.168.0.5, subnet mask is 255.255.255.0 and gateway 192.168.0.1 Step3.) Have access to the internet on all workstations and the server too. All we have succeeded to do is get the dhcp to issue out addressses to the workstations and even that i think we got lucky. We think the problem is somewhere you need to tell the (maybe iprouting?) setup that the Public ip address is the 65.123.141.10 and gateway, subnet info and to route to the server PRIVATE ip address 192.168.0.5
Thank you for any help. We are on very limited funds here and appreciate any help. My number is 925-984-9907 if you wish to call. We wil... Read more

A:DHCP Server using (1) Network card

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RELEVANCY SCORE 66.4

I am running windows xp on a dell inspiron 4150 with a built in wireless card. My wireless was working fine until windows prompted me to reboot due to windows update. It stopped working after that. It is telling me that no ip address can be found and when I ipconfiged it with renew and all it still could not find it. It gave me an error message that says cannot connect to DHCP server.
Any help will be appreciated.
Thank you,
 

A:Network could not connect to DHCP server

Nothing really comes to mind, but if you're using Window's Wireless Zero Configuration maybe you need to reconfigure your wireless connection; especially if your network is protected with encryption.

I use the utilities from my wireless cards' manufacturers to connect to my WPA protectecd network and had no trouble today after the same reboot (two notebooks). Well, same reboot if you're talking about the critical update released yesterday.
 

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RELEVANCY SCORE 65.6

Hello,
my network card cant obtain IP from my DHCP server after I installed windows xp and loaded the drivers what i got was limited or no connectivity


thank you

A:my network card cant obtain IP from my DHCP server

Hello kwachaa and welcome to TSF...
Try to Repair Connection...
Double-click on Local Area Network and go to support tab and hit 'Repair' button...
Make sure you set to get Automatic Address automatically...
Hope this will help you mate...

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RELEVANCY SCORE 64.8

Hello. I just moved to Auckland, NZ from the USA to go to school at the university here, and am having a problem connecting to the internet in the university residence hall in which I am living.
Wifi is not available in the residence halls, so we need to use an Ethernet cable. When I plug in my computer, the network adapter icon says “Identifying...” for a while then settles on “Unidentified Network” with no internet access, the IP is 169.x.x.x
When I try to release and renew the IP, it says “unable to contact your DHCP server, request has timed out"
I've tried multiple Ethernet cables, both brand new.
I tried connecting to a port in a friend's room in the same building, and even in a classroom on campus, and both had the same result.
Naturally after all that I assumed my NIC somehow died overnight while I traveled here, so I went to a computer repair shop expecting to have some hardware replaced, but we plugged it in there and it worked immediately so they weren't sure what to tell me.
I've gone through pages of old threads at this forum and others like it, trying solutions but having no luck.
I've power cycled my computer, obviously I can't power cycle the whole network as it's for 200 people, but the IT people here have tried resetting it for me on their end as best they can.
No network bridges
I've reset tcp/ip stack and winsock
It's not a static ip, set to obtain ip and dns automatically
No fire... Read more

A:Unidentified Network, Unable to contact your DHCP server

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RELEVANCY SCORE 63.6

When logging onto the company network via a RAS server, the DHCP active leases is not being updated with the IP address assigned to me. This is the case both when the RAS server is configured to give an IP address from a fixed pool, or when configured to obtain IP address from DHCP. As a result, I'm experiencing problems if an existing lan device has an IP address assigned and the dialed in device grabs that address. Whats going on ?
 

A:{Solved} - DHCP active leases not being updated when dialing into network via RAS server

Greetings

There should be a clear distinction between the IP adresses available for the network, and those available for the Dial up users. Do not make them part of the same IP group.

The reason is that Dial-up IP addresses should have a lease time of a few hours, and the LAN lease time should be that of a few days. This is obviously not compatible, so they need to be seperate.

Hope this helps

------------------
Reuel Miller
Windows NT Moderator (yes, that does make me biased )

[email protected]

Every morning is the dawn of a new error...
 

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RELEVANCY SCORE 62.8

Hi There Everyone at TechGuy! I am desperate for some HELP...Please?..........PRETTY PLEEEAAASSEE ???
Now,..Before i Continue Please First Be Sure to Read Fully as I did Some Google Searching & Tried Some Forum Fix It Options that I Found, which havent worked at all but I will leave you all info as well as some screen shots.
Second...Please know that I am not Very Computer Savvy or Knowledgable. Well,....a Little for a Home User but with the Operating System, NOT with this problem & networking, routers, modems, IP addresses & DHCP !! Networking is DEFINITELY NOT my area of expertise So Please Handle with Care. lol. THANKS & HUGS in Advanced!

ok,
The Problem.
We have a Desktop computer as well as a Lap Top,..both Running WINDOWS XP. The Lap Top is Wireless with a LINKSYS Wireless Card & the Desktop has the MOTOROLA Modem & a LINKSYS Router & we are BROADBAND Connected.
Both were Running & Working just fine & they were Both Accessing the Internet just fine...until 3 days ago when the Man in the house had to turn off the house power to find & replace a circuit breaker for the fritzing out Microwave & we turned off both computers before he did this. When the power was put back on, the Desktop Computer was back to its normal fine self & running perfectly. The Wireless Lap Top on the other hand was not.
The Wireless Laptop Popped Up with a Yellow Explaination Mark over the Double Computer Icon in the Bottom Right Task Bar...Near the ... Read more

A:Unable to Contact DHCP Server~Limited or No Connectivity~Cannot Assign Network Addres

if you connect the laptop to the router with a cable - does it work ?
you will need to copy between a working PC and laptop

would you post an image of device manager - see below
would you download xirrus and posr image see below
also post an ipconfig /all and if you could post into a reply - rather than a picture -
that the Wireless Card was never installed right to begin withClick to expand...

I'm interested in the ethernet connection that has wireless as a name - does the laptop have a built in wirelsss or do you use an adapter
------------------------------------------------------------------------
{Device Manager}
Post back the results in device manager
Start > control Panel {Vista set to classic view}> system > {Vista, device manager on left hand side} {XP hardware Tab, device manager button} >
windows 7
start > control panel> System and Security> Device Manager

network adaptors, click on the + > post back the devices listed there
are there any ! ? or X
post a screen shot of the device manager - network adapters

To post a screen shot of the active window, hold the Alt key and press the PrtScn key. Open the Windows PAINT application and Paste the screen shot. You can then use PAINT to trim to suit, and save it as a JPG format file.
To upload it to the forum, open the full reply window and use the Manage Attachments button to upload it here
------------------------------------------------------------------------
-----------... Read more

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RELEVANCY SCORE 61.2

I need the IP address ,DNS and gateway address so on .Is it possibile to get it from the modems DHCP or do I need the ISP DHCP working?

I'm setting up are home network and getting connected to the internet but the internet connection is down .But is it possibile that I can get this from the modem. .

Like how does the computer talk to the modem and the modem talk to the DHCP server .I never had this problem before.
 

A:Can you get DHCP info from the modem software even when the DHCP server is down

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RELEVANCY SCORE 61.2

I'm running a simple network at home with a Linksys BEFSR41 router. I have two computers hooked up wired and a wireless router acting like an access point that I use for my laptop occasionally. Until this weekend I've been having no problems but I shut down the computers due to weather and now one of them is not able to communicate with any others on the network. The problem computer will get an address supplied to it by the router (DHCP server) but once it has it I cannot get any other connectivity. Of course this is hindering internet access on this computer. I can ping the loopback and assigned IP addresses w/o problems but when I ping the default gateway (router) and/or the other computer I get "Request timed out." I initially thought it was the NIC so I bought another one but still get the same issue. I've moved the cards to different PCI slots but no luck. I tested the cable running from the computer and the router but found no problems. I even tried resetting the TCP/IP stack but still didn't work. The computer in question is running WinXP SP2 with the original NIC being a Linksys LNE100TX and the new one being a D-Link DFE-530TX+.

Any clues on this? If more info is needed let me know--it's been a while since I've posted. Thanks in advance.
 

A:Solved: Getting IP addr from DHCP but cannot ping DHCP server

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RELEVANCY SCORE 61.2

Hello,

I've been trying to connect to my home wireless router for a while now. I have one main computer and a laptop. The main computer works fine on the internet. The laptop does too if its connected by an ethernet cord. However, it refuses to connect to the wireless, saying that there is limited or no connectivity. I tried the ipconfig release and renew, but that's when it said "unable to contact DHCP server." I copied and pasted what was in the command box after the ipconfig below. How do I fix this problem to get my computer to connect to the wireless?


Microsoft(R) Windows DOS
(C)Copyright Microsoft Corp 1990-2001.

C:\DOCUME~1\CARR_SL>ipconfig.exe

Windows IP Configuration
Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . : myhome.westell.com
IP Address. . . . . . . . . . . . : 192.168.2.101
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.2.1

Ethernet adapter Wireless Network Connection:

Connection-specific DNS Suffix . :
Autoconfiguration IP Address. . . : 169.254.248.45
Subnet Mask . . . . . . . . . . . : 255.255.0.0
Default Gateway . . . . . . . . . :

C:\DOCUME~1\CARR_SL>ipconfig/release

Windows IP Configuration
Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . :
IP Address. . . . . . . . . . . . : 0.0.0.0
Subnet Mask . . . . . . . . . . . : 0.0.0.0
Default Gateway . . . . . . . . . :

Ethernet adapter Wireless Network Connection:

Con... Read more

A:"unable to contact DHCP server" - problem connecting to wireless router

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RELEVANCY SCORE 60.4

My WinXP Home PC won't connect properly (limited connectivity/no internet) via ethernet cable to my router (Belkin N150).

Ipconfig /all shows the IP address as 169.254.117.71 but this is determined by an entry in the registry at HLM\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces\{39A...} > 'DhcpIPAddress' - REG_SZ - 169.254.117.71. Also listed at 'IPAutoconfigurationAddress'. My laptop connects fine plugged into the same port getting it's IP automatically (192.168.2.2) and getting internet fine.

After much searching I can't figure out what's wrong.

I've tried adding a DWORD entry 'IPAutoconfigurationEnabled' = 0, also tried deleting the 2 values.
Tried setting the IP manually to 192.168.2.6 - limited connectivity goes away but I get no internet connection from the router nor file sharing.

Any help please?
 

A:Solved: DHCP IP by registry not by DHCP server??

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RELEVANCY SCORE 60

Okay, I got a new client a few weeks ago. What a mess...anyway, they had bought a new Dell with SBS 2K3 on it, and for some reason they have a wired firewall (Linksys), a wireless router (Linksys) and a small switch. After examining the setup of the network, I found the wireless router giving out IP addresses in the 192.168.1.X range, the SBS being what it is, was going to be the DNS/DHCP/DC, on and on, etc. I turned off the DHCP on the wireless router. Yesterday they called and had a machine that I wasn't aware of that couldn't connect, it's a proprietary machine for X-Rays, and all I could do was really look at it, and do a few things, like change the IP if needed, but it's set to DHCP, and it's getting 192.168.1.X addressing, when umm, it can't be. I did ipconfig /release then /renew, nothing, still the old address, with 192.168.1.1 as the DCHP and gateway. I statically set it to the 192.168.0.X settings and nothing, can't ping in or out or see the network. I set it back to DCHP reboot, and it still gets 192.168.1.X address, but there is no DHCP server serving up these address, so ummm, anyone? Oh, the X-Ray comp is plugged directly into the firewall now wich is on the 192.168.0.X network on the inside.......
 

A:Solved: DHCP coming from a non-DHCP router?

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RELEVANCY SCORE 59.6

I come to you again seeking help. We have a problem with our logon and startup to our Windows 7 Enterprise system. We have more than 3000 Windows Desktops situated in roughly 20+ buildings around
campus. Almost every computer on campus has the problem that I will be describing. I have spent over two months peering over etl files from Windows Performance Analyzer (A great product) and hundreds of thousands of event logs. I come to you today humbled
that I could not figure this out. The problem as simply put our logon times are extremely long. An average first time logon is roughly 2-10 minutes depending on the software installed. All computers are Windows 7, the oldest computers being 5 years old. Startup
times on various computers range from good (1-2 minutes) to very bad (5-60). Our second time logons range from 30 seconds to 4 minutes. We have a gigabit connection between each computer on the network. We have 5 domain controllers which also double as our
DNS servers.
My original posts on:
Technet: http://social.technet.microsoft.com/Forums/en/w7itproperf/thread/e8400dbe-e6b8-4b1d-8851-a03e7af32e6e
Reddit: http://www.reddit.com/r/sysadmin/comments/w5f38/network_logon_issues_with_group_policy_and/
I followed a lot of what you all told me to do from testing the domain controllers with dcdiag and also completing netlogon tests. I did group policy tests where I got rid of the group policy
and just did default policy and it only slightly fixed the prob... Read more

A:Major Network Logon Issues (8 Domain Controllers and 3.5 thousand workstations) DNS, Time Server, DHCP, and Group Policy Errors

Hi,


I would like to suggest using Network Monitor to troubleshoot the issue.


Thanks.

Jeremy Wu
TechNet Community Support

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RELEVANCY SCORE 58

i cant connect to the enternet or lan on my desktop. when i type in
the ipconfig /renew then it say unable to connect to the dhcp server.
can i get some help plz im not that pro in networking.
 

A:cant connect to the network "a dhcp error" not wireless and no router

You have to tell us what network you are connecting to so you can get help. No info = no help.

You could start by describing physically how your computer connects to the lan and then the internet.
 

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RELEVANCY SCORE 56.4

I'm running Remote Server Administration Tools (RSAT) on Windows 7 Professional 64-bit and I've noticed that when I run the DHCP Management tool (DHCPMGMT.MSC) and I add our DHCP Authorised server then close the console, it forgets the DHCP server and I
have to re-select it next time I use the console. 
On the other hand, the DNS console remembers that I've used a particular DNS server even after I close the console.
Wondering why the DHCP Management console is so forgetful?

A:DHCPMGMT.MSC in Remote Server Administration Tools (RSAT) won't remember DHCP server

Hi,
This is by design.

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RELEVANCY SCORE 56

IP Network: Dhcp server works fine. (CISCO ROUTER)

Windows 200o servers, Windows 2000 clients (up to dated, sp4, rollup1 etc) IS6sp1

Some pc's with IP dhcp , works ok
Some pc's with fixed IP, works ok

After changing fixed IP on a client to dhcp-IP, the client can not find the DHCP server.
change back to fixed IP, PC works fine again.

DHP server and other DHCP clients still working fine

Local Area connection status: only outgoing packets, no incoming.

reboot, or ipconfig /renew no solutions

Does someone know this problem ?
Pieter
 

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RELEVANCY SCORE 56

ok I am at witts end with this thing..I am trying to access the web server from the internet.

I have a ADSL plus 2 connection going to my Actiontec GT724R router.

In the router I have and tried
port forwarding set to 192.168.1.15 ports 1 thru 1023.
Nat is enabled.
DHCP is enabled
remote management is OFF
RIP is off
tried with static routing and without.
UPNP on and off
Firewall is disabled
DMZ hosting on and off
I have no scheduled rules set
no services blocked
rebooted router after changes.
DNS for domain name assigned and updated via. freedns. to WLAN IP

on this router I have 4 computers.

Router 192.168.1.10
Mask 255.255.255.0
DNS1 208.67.222.222
DNS2 208.67.220.220

computer A is a windows
IP 192.168.1.11
Mask 255.255.255.0

computer B is a windows
IP: 192.168.1.12
Mask 255.255.255.0

computer C is windows
IP: 192.168.1.13
Mask 255.255.255.0

computer D is linux web server
IP: 192.168.1.15
Mask 255.255.255.0
Bcast: 192.168.111.15

When I access the domain by name or Wlan IP address it hits the router and the rouer remote management pops up on the browser. This tells me the router isn't forwarding the port traffic to the server.

I can access the net from the server but not vise versa..

I have looked for a firmware update for the router but there is none. I do have the source code but before I start having someone start jacking with it I would rather see if it's my settings I'm missing.

Thanks
 

A:Solved: Router to server network

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RELEVANCY SCORE 56

Hi.

I have Vista Business 32 bit on network where Juniper SSG 20 is gateway / dhcp server.
All other computers work fine, this particular one

1) cannot get dhcp address from dhcp server
2) when I assign manual address to Vista, it can access internal network (192.168.1.x) but not Juniper SSG 20 iteself nor outside network.

I have googled already and tried this:
Quote:
support.microsoft.com/kb/928233
but no help..

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RELEVANCY SCORE 55.6

Hi,
My current setup is with a cable modem(8meg Comcast) going to a wireless router (LinkSys WRT54GX2 w/SRX200). The router feeds one wired & one wireless client, and two 4port network switches. The switches feed four more wired clients and a VoIP adapter.
I want to setup a server running Windows Small Business Server 2003, and then move everyone over to that.
My first question is about hardware: Can I have SBS 2003 use my existing router for the DHCP server? 2) If not, will I need a server network adapter, w/dual ports I guess, in my new server for it to take over the DHCP duties? 3) If the 2nd question is no also, what is the hardware configuration that I will need?
FYI, the last real experience I had with running a network was in 2000, using Netware 4.X on the server side and mostly Win95 & WinNT clients. Since then it's mainly been home networking stuff, wired & wireless, and this is my first experience with Windows Server.

Thank you for your help,
alan
 

A:Moving from a Router network to Win SB Server 2003

Unless you also have a software firewall running such as ISA, I owuld suggest using one NIC card on the server and let the router handle DHCP.
 

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RELEVANCY SCORE 55.6

I am a novice when it comes to networking so please help me out...
I am connecting Netgear wireless router (wgr614 v5) to an already placed router on the network (Nortel Networks Router). I am having trouble with wireless router because the Nortel router is DHCP disabled. Please if someone could help me, I would greatly appreciate. Please, explain step by step how to configure the wireless router to work with Nortel router.

P.S. The Nortel router cannot be DHCP enabled...I have DSL coming to Nortel router. So, Nortel is the primary router. Nortel router can't be removed because it is required by my company that I use it to connect to their network over the internet.

Thanks for your help!
 

A:Connecting a Wireless router to DHCP Disabled wired router

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RELEVANCY SCORE 54.8

Hi, I have several computers on a network, running windows 10, in addition I have a Sharp printer on the same network and a standalone server, all the server does is it has 4 folders where stuff we scan on the sharp machine goes into the folders encrypted. Yesterday I disconnected my Draytec Vigour Router and Connected the latest Business Hub from BT after changing my broadband plan. Since then, the server is not working, we are unable to access our scan folders, and the printer isn't working. The computers however are working fine. Does anyone have any idea what I need to do to fix this? For the time being I've reconnected the Draytec Router to have all systems working as normal. The idea of the new router is that I have the 4g backup when the broadband goes down which it does regulary, any help would be greatly appreciated.
 

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RELEVANCY SCORE 54.8

Hello Guys...

I'm here for some assistance regarding Networking thru Ethernet cable and routers.

1. Have set a desktop as server assigned an IP and configured it.
2. Have connected 2 clients within nearby range of distance (all is good going here)
3. Have a 3rd client PC quite far but the networking and sharing a very slow with files and application.
4. When i connect LAN from server router to 3rd PC i can get access (but slow) but when i connect LAN from server router to another Switch router i wont get the config in 3rd PC.
5. Is there specific configuration need to do more for implementing a router switch in between both clients.
 

A:Network Lan & Ethernet connection routers (server & router)

I've removed your unnecessary poll. Please understand that a poll is optional and you do not need to create one with silly responses.

What kind of distances are we talking about here? How long is the Ethernet cable to this third computer? What connection speed does this third computer show? 10, 100, 1000 mbit/s? Is this a pre-made Ethernet cable or a cable that you or someone made for you? Are there any kinks or damage to the cable? Have you tried the computer at the location of one of the other computer that is working properly?

You cannot put a router in between and just expect it to work, that will just create a new network and split everything up. You could use a switch, a switch is not the same thing as a router, but you'd only need one if the cable run is longer than 100 meters. If the run is less than 100 meters then you have a problem with the cable or the computer.
 

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RELEVANCY SCORE 54.8

Hi Everyone,

This is my first post, so be gentle with me

I need some networking help please.

We have;

* 2wire 4 port ADSL router
* Server - Running SBS with 2 NICs
* 48 port switch
* A load of computers running a mix of XP and vista
One of the server NICs plugs into the router, the other into the switch. The router doesnt plug into the switch.

The server gets and internet from the switch with no problem.

I've plugged all the client computers into the switch - so in theory they would connect to the server > get their ips (dhcp) > then gain access to the net via the server.

However this is not the case. no client computer can ping or rdp into the server, altough when doing IPCONFIG it seems to have got an ip from the server.

If i plug a computer directly into the servers NIC (not the internet one) I can RDP into it, and get an internet connection.

Why is does it stop working once i plug them both into the switch?

any help is greatly appreciated as this one has been racking my brain for some time now

Thanks

Joe
 

A:Network config help. Router > Server > Switch > Computers

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RELEVANCY SCORE 54.4

I'm messing around with W2K Server at home and can't seem to get it connected through my cable modem to my ISP's DHCP server. I know the cable and connection are good because it works on my W2K Pro workstation. I've tried ipconfig /renew but that's when the error occurs that it can't find DHCP. I can successfully ping the loopback address. The NIC is set to use DHCP.

Since I'm just becoming familiar with Server I'm sure there's something I'm not configuring properly. Suggestions?

Thanks.
Kevin
 

A:W2K Server can't find external to DHCP server

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RELEVANCY SCORE 54.4

Hi! I have a wired Ethernet connection between a PC and a Mac (is that the issue?), and when locally hosted servers (on PC) are hosted, I get issues, but mainly issues binding to ports. Is the issue that I am not using a router or something like that?

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RELEVANCY SCORE 54

I'm looking for a little help if someone would be so kind, because I'm a bit out of my normal depth with this.

I'm putting together a small home network (well, I guess large compared to some!), where I have three desktops connected to my router by wireless. I also have a CentOS/Apache/ISPConfig server box, and a WinServer2k8/IIS server box. My intention is to connect both of these servers to the router in such a way that each has it's own 'real' IP. Registered domain names would then be pointed at either the IP of the Apache server or the IIS server, and so the router would deliver the traffic to the appropriate box according to which IP the domain is pointed at.

To those ends, I've purchased a block of IP addresses from my ISP. Having just called them, I've been instructed that the IP block I've bought are my internal IP addresses, and that once I've set them up on the router in this way, they should work.

I've never actually done this before, and my networking experience doesn't really stretch past the very basics of home networking, and so I have very little idea of what kind of options I need to use to set this up on the router - there are things in there that are more advanced than I understand. Could anybody please point me in the right direction?
 

A:One router, multipe real IPs, multiple server boxes - setup network?

Regular SOHO routers such as a linksys will not let you manage multiple static IP's. You will need an enterprise class VPN/firewall/router such as a Sonicwall to do that. I assume you want one IP for your web server, one for FTP and so on.. all pointing to different servers/nics. I would suggest a Sonicwall Pro 2040 or Pro 3060. I've seen both on ebay (used) for a reasonable price (around $300). Keep in mind these boxes go for about $1500 to $2000 and up (retail). There are other products from other vendors such as Cisco which will be significantly more. You will need a router in bridge mode (or a bridge) between your WAN connection and the Sonicwall. A regular linksys may suffice for this. There may be other solutions to this but this is one.
 

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RELEVANCY SCORE 52.4

I was trying to use tftp32d to pxe boot machines however, I couldn't get the DHCP server that is built into that program to work and eventually got angry and gave up. When I had some more patience, I started trying it again and it worked immediately without any settings changed.

The reason for my post is because it stopped working again. I can't figure it out and it's driving me nuts. Could this be an issue with the setting where you can select which network your own for example work, home or public location?

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RELEVANCY SCORE 51.2

running winxphomesp2 on abit kt7-333 with intel 10/100pro V onboard networking

working fine then suddenly this morning while browsing ( no downloads / no installs)
systray icon shows yellow ! and loses connection

router is linksys wrt54g default gateway 192.168.1.1

ip num 192.168.1.101 changed to 169.254.240.41
ipconfig /release clears ip
ipconfig /renew fails due to timeout
no other comps online affected

ip config /release then boot
reverts to 169.x.x.x

uninstall network device and boot
windows new device found wizard opens locates identifies installs driver
tcp/ip auto configured to get ip auto get dns auto dhcp enabled
renew ip fails timeout
ip defaults to 169.254.240.41 again

connect pc directly to cable modem
reset cable modem and boot computer
no effect

nic shows enabled and working normally but no connectiivity to lan or internet

any ideas what why how happens
what to do to repair
what to do to avoid repeat
do i have to get a pci nic and disable this one in bios?
 

A:Can't get IP from DHCP Server

run this command in the command prompt tool

ping localhost

and post results

thanks
 

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RELEVANCY SCORE 51.2

Here is my current configuration:

We have 7MB/768K DSL Business dynamic IP connection.
Anywhere from 10-20 simultaneous users.
One Cisco 30 port switch feeding into one Linksys wireless router to provide local IP addresses to all the users for the one IP address to the world.

It seems to me we have a huge bottleneck at the wireless router but we need it for the DHCP server in that router.

Are there any low cost solutions that would provide faster performance for the users?
 

A:DHCP Server (Do I need one?)

Hi skibizkit, and welcome to TSG.

skibizkit said:

... provide local IP addresses to all the users for the one IP address to the world.

It seems to me we have a huge bottleneck at the wireless router but we need it for the DHCP server in that router.Click to expand...

Sharing a single Public (world) IP address with multiple Private (local) IP addresses will require some type of router that supports NAT (Network Address Translation). Running a DHCP server on the router should only add a small amount of local bandwidth usage when a computer first connects to the router and gets assigned its private IP address by the DHCP server. The DHCP server is then out of the picture until another computer comes on line or the DHCP lease time (could be up several days) expires for each computer.

Is the speed bottleneck related to accessing the Internet through the DSL connection or exchanging data between computers (and servers) on the same local network?
 

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RELEVANCY SCORE 51.2

I had to reinstall windows2000. When I went to load Road Runner it can't release/renew an IP address. The modem is fine. The router is fine. The other computer in my house sees the internet but my does not. Can someone give me some idea on what to do? Thanks.
Debbie
 

A:DHCP Server

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RELEVANCY SCORE 51.2

Right now I have my server connected to a router and the router does the dhcp for me. I am thinking of putting a second nic in the server and using it for dhcp. If I have computers in the house that are not a part of my domain will I still be able to get online with them if they are connected to my switch? I guess to paraphrase myself I am asking can you use a server to route and not have everyone connected to the server in your domain?
 

A:Server DHCP or No

I'm not sure what DHCP has to do with routing... Are you trying to break your network into subnets?

You wouldn't need a second NIC to move DHCP to your server. If you want to move DHCP from your router to your server, just set up a new DHCP scope on the server and that's all that's required. Clients do not have to be part of the domain to get an address from a DHCP server.
 

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RELEVANCY SCORE 51.2

I'm using a DHCP running on Windows 2k3 server. What could be the problem if every time someone using his cellphone connects to the network, the internet connection automatically drops....
 

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RELEVANCY SCORE 51.2

Not getting IP from Dhcp server.
Checked in Dhcp Error Showing BAD Address.
IP 20-25 % IPs are showing free..

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RELEVANCY SCORE 50.8

I have a secondary DNS server that has a record i cannot
delete, even though i have deleted the record from the
primary DNS server. Both of these servers are domain
controllers, W2K running active directory.. How do i
remove this record from the secondary DNS server (I have
tried a zone transfer, but this does not seem to have
worked, i have also checked both servers to make sure DNS
is running)
 

A:Secondary DNS server

Find the file that contains the data, it is a text file that you can edit in notepad. I fixed several data problems on a secondary DNS that way. If you change the version number (lower it), it will force a transfer from the primary at next update interval. The file should be where the DNS files are (I think it has a .dat extension, but I don't play with DNS anymore and can't confirm the name or loacation of the file). I know it was easy to find.
 

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RELEVANCY SCORE 50.4

My internet browsing has slowed to a crawl and I cannot access web meetings and other sites I have subscribed to. I did some system testing and everything came back normal except for the following: VIA Compatible Fast Ethernet Adapter: failed DHCP Server = 10.230.40.14: failed pinging 10.230.40.14 w/32 bytes of data request timed out (this is repeated 4 times) ping statistics for 10.230.40.14 packets: send=4 received=o How can I fix this failure? Is this DHCP server from the browser; from my internet provider? Who issues this protocol number and can I change it, do I need to change it? When my computer is running the way it should it is fast and the problem with it acting so slow was intermittent for a while, now it is constant.
I use windows XP
 

A:DHCP Server = __.___.__.__ failed

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RELEVANCY SCORE 50.4

I have win2003 server and my dhcp server quit giving IP's when a lease runs out. I have tried to reboot the serever and I have tried to start and stop the DHCP service to no avial. Now I have had to go to all the machines in our office and give them static IP's. Does anybody know how to fix this?

thanx
 

A:DHCP server not working

Any error messages in Event Viewer on the Server or Clients.
 

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