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6 Posts
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9375
September 20th, 2008 09:00
Poweredge T105 2 x NIC setup Problems (No internet from Client PC's on LAN)
Can anyone help me with this one please?
I have internet access on the Server. The client PC's authenticate with the Server and can share resources, but can NOT access the internet. They can also NOT ping the router (gateway).
CONFIGURATION:
Poweredge T105 Server - Windows Server 2008 Standard (x64bit)
I have two NIC's configured :-
1 x External (Internet facing) - 'North'
1x Internal (LAN facing) - 'South'
'North' (External)
192.168.16.253
255.255.255.0
192.163.16.254 (gateway)
127.0.0.1 (DNS ) - I set this to the same as the gateway IP but Windows changed it!)
'South' (internal)
192.168.16.1
255.255.255.0
(no gateway set)
127.0.0.1 (DNS) - ditto above
How do I get traffic from the Clients to route through the Server to the External NIC? I have a feeling I've missed out an important step in the config.
Thanks in advance!


chippies
16 Posts
0
September 20th, 2008 13:00
Hi pcathome.
You need to create a network bridge on the server. You can do this from the Manage Network Connections screen (link is in the Network and Sharing Centre on Vista). Select the two LANs that represent NICs, right click and select bridge connections.
The client PCs should then have their gateway set to the server's IP address. I hope this works for you as I have only done this to share a LAN connection over a wireless network (from my vista laptop) when there weren't enough cables.
pcathome
6 Posts
0
September 20th, 2008 16:00
Thanks Chippies
Can I just check that when you say the Client PC's have their gateway set to the server's IP address, this is done whilst still keeping DHCP enabled on the Client PC's NIC (i.e it's configured using the 'Advanced' button in the 'Internet Protocol TCP/IP' Properties Box)?
I read somwhere that bridging may not be to good a solution from a security point of view - I.E The Server's firewall may not be so effective in protecting the LAN - not sure if this applies on my particular setup.
References elsewhere suggest that 'Routing and Remote Access' can be used to direct traffic across the NIC's (better from a security point of view apparently). Can not seem to make this work though.
I am also still unsure if the Router and the NIC it attaches to (my 'North' NIC in this case) should have different IP addresses? I have assigned the router with an IP address - 192.168.16.254 and the 'North' NIC - 192.168.16.253. Is this correct?
Is it also correct do you know that I do not need to bring the ISP's public ip address info (Mask, Subnet and Gateway) into the config of the 'North' NIC?
Many thanks for your response - it has been helpful and I will give bridging a try if there are no big security issues to tussle with.
chippies
16 Posts
0
September 20th, 2008 19:00
With DHCP enabled, I don't think you need to set the client PC's gateway. Unfortunately my knowledge of DHCP and servers is not much. As for how secure it is, again I don't have enough knowledge or experience, sorry.
The router and the north NIC should have different IP addresses. Your ISP's information doesn't need to be included in the north NIC's configuration as that is all handled by the router.
I hope this helps, unfortunately I'm not a network administrator.
pcathome
6 Posts
0
September 21st, 2008 19:00