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gregquinn

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Our server has two network interfaces, one is disabled, the other plugs into a hub. Plugged into this hub is our ADSL line.

From what I read in the Kerio docs I should enable this second interface, plug the ADSL into one, and then plug the network hub into the other. Is this correct? It makes sense to me so no traffic can get in or out without going through the firewall.

So my queston is, our server is a domain controller - so it has an IP of 192.168.0.1. Now when I enable this second network interface, how do I set its values?? Our ADSL router is 192.168.0.100. I have tried many things, but then PCs on the network can't access the internet and other problems... What is the correct way to set up this second interface? Do I assign it an IP? What gateway do I use?

I am a programmer so networks are still quite new to me.

Thanks
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feite

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Yes you are right. The server has to be between ADSL and LAN. Assign to the LAN interface another ip address: 192.168.1.1 mask 255.255.255.0. Assign to the ADSL interface an address in the range of the ADSL router like: 192.168.0.1/255.255.255.0. Make sure the ADSL interface has a default gateway specified (the ip address of the ADSL router: 192.168.0.100). The pc's inside the LAN should get an address from the same range as the LAN interface. The domain controller has a DHCP server running. Make sure the new address range is made available (192.168.1.0 / 255.255.255.0). Clients get an address from the DHCP server. The default gateway that the DHCP server specifies to the client should be set to the LAN interface of the server (192.168.1.1).

If you do not want to change the ip address of the LAN interface you could change the ip address of the ADSL router:
- adsl interface on server: 192.168.1.1 mask 255.255.255.0, default gateway 192.168.1.100
- ip address of adsl router: 192.168.1.100 mask 255.255.255.0

The second option is easier.

[Updated on: Tue, 04 October 2005 21:12]

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Adrian2004

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I have the same situation with some modifications:

- ip address of the ADSL router: 10.0.0.135
- adsl interface on server: 10.0.0.5; mask 255.255.255.0; default gateway 10.0.0.135
- LAN interface of the server ip: 192.168.0.1
- LAN computers use the ip 192.168.0.x ; subnet 255.255.0.0 and gateway 192.168.0.1

I must change something in this configuration?

Thanks
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feite

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Looks ok, no changes needed.
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