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Win2K server NIC will not acquire IP add

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11 replies

by makeitso

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I am helping a school become Internet connected. They have a Dlink DSL504 router and this is connecting fine to the Internet via a laptop. Problem is that when I connect the router to a W2K DC, the NIC it is connected to will not get its IP address from the router. Server setup is as follows: 2 NICs one serving existing W98/2K clients with static IP of 10.0.0.2 mask 255.255.255.0 and issuing IP?s. Second NIC until now unused shows 0.0.0.0 in ipconfig. Renewing gives error message "An internal error has occurred. Reinstall or reboot". Device manager reports all is well and a replacement NIC produces the same error. If I set a manual IP it will not communicate with the router's web mgmt page. In the DHCP console tree the server icon shows ictserver.ict.local[192.168.0.2] which was the manual address I tried. DHCP was bound to both adapters but I have unbound the miscreant. RRAS is not started as yet. Help! Thanks.

11 replies

by cg it

"usually", the DSL/Cable router has a built in DHCP that will bind to the second NIC [unless your ISP has issued you a static IP address. You enable DHCP in the Router by the setup program via the web page management. To access the web page, disableauto detect and proxy [uncheck all boxes on the LAN settings page page of IE [if you you use IE]. Also make sure the 2nd NIC card TCP/IP properties are set at auto discovery. Type in the default IP address of your DSL/Cable router in the address barof IE, [example: http:\\192.16x.xxx.xxx then click "GO". This should pull up the web management page of your router[ it may be necessary to click go more than a couple of times to make the connection. The Router manual should provide you with the information you need for accessing the setup menu via a web browser. If necessary, disable your LAN connection to ensure your NIC # 2 is the only NIC that will be able to connect with your DSL/Cable router setup page.

by cg it

I looked at the manual for the DSL 504 router for accessing the web based management. default IP of the router is 192.168.0.1 This is the address you type in the browser [http:\\192.168.0.1] the default admin name and password is "Admin". Further, the manual states that you set your NIC card that will connect to the router with "obtain address automatically". The DSL Router will provide an IP address to the NIC. See: http:\\support.dlink.com

by makeitso

Configuring the router was not the issue as I can connect via a laptop that has no problem getting a dynamic IP address from it. Disabling the other NIC had no effect.

by lordinfidel

FYI-

2K DC's with 2 nics can and will produce unwanted and strange results.

It is not reccomended that 2k DC's have 2 nic's installed. Otherwise known as Multihomed.

My reccomendation would be to remove the 2nd nic.
Make the DC's address available for the LAN only.

Create another server, do not make it a DC, it will be there simply for routing purposes. (unless the dlink has more then 1 port, then you can just cascade a hub/switch off of it)

The new server will have 2 nics in it. One conneceted directly to the dlink router, using a IP that can talk to it.

The other nic will be for the internal lan, connected to, what I hope you have, a hub/switch.

It's address will be that of the local lan, not of the rtr lan. They need to be 2 different ntwks.

Next, install RRAS with NAT and allow the RRAS server to give out dhcp address'.

You may also need to set DNS server address' also.
The clients will obviusly need to be set with dhcp.

by makeitso

There is no other server available. Surely, there must be hundreds of similarly equipped small organisations with only one server but also Internet connected. Some of them must have 2 NICs working.

by cg it

I'm running SBS Server 30 clients with DNS, Exchange SMS and ISA server. The DNS server has 2 NIC's. Internal and External. Exchange and ISA all run on the same computer as DNS. We run FTP, Web, and Internet Access for those who need it. The external NIC is set to obtain both IP and DNS automatically on the WAN from a DSL router. We use a second NIC for LAN and provide DHCP for all client IP addresses, ISA server as our proxy server. We have exceptional stability with this set up and provide Internet Access to a number of client computers. Since your rejected my answer as well as another, I suggest you try Microsoft's FQA or Technet.

by cg it

To get your WAN NIC that is connected to the router to obtain an IP address, you must setup your router as DHCP. Again, check Technet or microsoft help.

by lordinfidel

Like I said before...

A 2k Domain Controller with 2 nics in it *will* produce unwanted results.

Other small orgs who attempt to do the same thing encounter the same problem.

In this case, I would get a multi-port dsl router and a hub. Havethe multi-port router dial-up to your dsl provider, and attach a hub to it. Then attach the rest of your nodes to the hub.

Configure the dsl router to hand out dhcp OR statically assign IP address to the client systems.

I know it's not an answer that you want, But you can not get around this one if you have set up Active Directory on a 2k server.

AD DC's CAN NOT be multihomed!

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