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New Server With Multiple Roles (AD/DNS/DHCP/Routing/DC)

By SomeTechGuy ·
I have a new server that Ive been trying to configure as an all in one. This is just home use so its not critical. Right now I have a number of roles and I can verify that DNS works, AD works etc however I have the following problem. I have DHCP Authorized and available but when I plug Client system into the nics on the server they dont get the DHCP assigned, just the standard 169 junk.

The server has the power to run all this but maybe the operator isnt doing something right. I have 2xQuad VT Nics and I want system to plug directly into the server. Again no DHCP information is being attached.

Any ideas?

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You might get an answer faster if.....

by ThumbsUp2 In reply to New Server With Multiple ...

... you posted your question in the QUESTION forum instead of here in the DISCUSSION forum.

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Check DNS

by JerryM MCSE+I / A+ In reply to New Server With Multiple ...

Just a few things to check.
1. Ensure the DNS server entries on BOTH nics point to itself and not your ISP.
2. If you need internet DNS resolution; configure conditional forwards in DNS (properties of the DNS server object, forwarders).
3. If you have any firewall software intalled/enabled on either the server or client; disable/turn off..etc for troubleshooting.
4. Ensure the DHCP service is bound to the internal NIC.
5. Take a network trace using netmon on the server to see if you are actually seeing the client request an address.

Just a few things to start you off.

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Response

by SomeTechGuy In reply to Check DNS

Ive tried putting the primary DNS server on the nics to both 127.0.0.1 as well as the 192.168.2.10 and it doesnt seem to change anything

DNS Entries are all local with the ISP ones entered under the properties of the server profile in the DNS Config Window

Never tried conditional forwarders

No firewalls, will install my pix 525 once all this is configured

Now I cant tell if its bound to the internal nic, only router seems to allow me to pick NIC cards so any instructions here would be great

The NIC on my dell xps 720 and the nix on the poweredge 2900 have the 169 address wsith a subnet of 255.255.0.0, so what IP do I tell the 720 to connect to for the dns server if its plugged directly into one of the 8 free gigabit ports?

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Plugged directly into server?

by -Q-240248 In reply to New Server With Multiple ...

You should probably use a hub or switch to connect teh server with the clients, but if you insist on plugging in directly, you will require a "cross-connect" cable to plug nic-to-nic, where the pairs are crossed. Even then though you are going to run into problems having two nics, and it's too complicated to go into. Get a hub/switch.

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Yes Directly

by SomeTechGuy In reply to Plugged directly into ser ...

Yes, the server has two intel quad Port vt nics and I wanted to use those to plug clients in however these ports dont seem to pickup the DHCP server on the same machine and I know the DHCP is authorized and a scope has been created

Scope Settings

192.168.2.25 - 192.168.2.125
Subnet 255.255.255.0
Gateway 192.168.2.1 (The Internet Modem)
Nic thats plugged into the Modem 192.168.2.10

Is there a conflict with this scope?

The route seems to know that the NIC is using the 169 address with a subnet of 255.255.0.0 which means it didnt pickup the DHCP server

So Im lost here and it should work without any problems!

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Quad port does not equal a hub

by -Q-240248 In reply to Yes Directly

In the past, quad-port NICs were setup with 1 IP and the 4 ports could be used to add more bandwidth to the server, like what Etherchannel does for Cisco. Typically these cards do not function as a hub or a switch, if that is what you are thinking. I don't think that's going to work, but then again, I am not completely familiar with that brand of NIC. I doubt it functions as a switch.

Do you have lights on the back of the nics that indicate connectivity?

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Connections/Lights

by SomeTechGuy In reply to Quad port does not equal ...

Yeapers the lights go, and I can access shared folders on the server and that was the first thing I tested for. The nics are Intel Pro 1000 Quad Port VTs (500 per card).

I know its not a hub but just want to plug a few workstations into it and I dont think that should be an issue. I know peeps that do it and I could do it with Wink2k3 but Server 2008 just doesnt seem to like it or Im not configuring something correctly.

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OK, back to IP...

by -Q-240248 In reply to Yes Directly

Scope Settings

192.168.2.25 - 192.168.2.125
Subnet 255.255.255.0
Gateway 192.168.2.1 (The Internet Modem)
Nic thats plugged into the Modem 192.168.2.10

Is there a conflict with this scope?

So, you have two nics on the server. 1 plugged into the Internet modem, the other with your workstations?

The one plugged into the internet, it's at 192.168.2.10, and the internet modem is @ 192.168.2.1?

And now you are trying to use the same subnet on the second card? 192.168.2.25 /24? That won't work. Try a new scope of 192.168.1.0-.255 255.255.255.0 or anything else other than the Internet subnet. I imagine the Internet subnet is also using the 255.255.255.0 mask.

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Response

by SomeTechGuy In reply to OK, back to IP...

Actually there are 3 nics

1.) Server had two built in BroadCom nics (One of these is used for the net modem)
2.) 2x Quad ports ethernet cards (Will be used for client systems

So in total I have 10 Ports all Gigabit

Right now Broadcom port 1 is plugged into the modem which has a gateway of 192.168.2.1 and the Nic is 192.168.2.10. This is that nics dedicated IP address.

The workstation is plugged into one of the 8 intel ports.

The one plugged into the internet, it's at 192.168.2.10, and the internet modem is @ 192.168.2.1? Yeapers

And now you are trying to use the same subnet on the second card? 192.168.2.25 /24? That won't work. Try a new scope of 192.168.1.0-.255 255.255.255.0 or anything else other than the Internet subnet. I imagine the Internet subnet is also using the 255.255.255.0 mask.

The scope right now is 192.168.2.25 - 192.168.2.125 giving me 100 DHCP addresses and yes the internet nic uses 255.255.255.0. So your saying on the scope use:

192.168.1.1/192.168.1.100 for IP Range
Subnet should be 255.255.0.0?

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Subnet mask

by -Q-240248 In reply to Response

No definitely not 255.255.0.0

Why use 192.168.1.1-100?

Set the server IP on the NIC with the workstations to 192.168.1.1 (255.255.255.0). Set the DHCP scope to 192.168.1.2-254 mask 255.255.255.0

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