2 Nic on same subnet.

[Stephan Weaver]

Can you give me an example of how this is done?


>From: Sarath ER <sarath at linuxtechs.net>
>To: freebsd-questions at freebsd.org
>Subject: Re: 2 Nic on same subnet.
>Date: Tue, 21 Jun 2005 12:10:33 -0700
>
>Stephan Weaver wrote:
>
>>Hello All,
>>
>>I am trying to place my network behind a firewall [FreeBSD BASED].
>>
>>What i have Done!
>>
>>I have 2 Nic in the BSD PC.
>>vr0, vr1.
>>Both on the same subnet eg.
>>vr0 - 192.168.0.1 , vr1 - 192.168.0.2.
>>
>>I Plug the Ethernet Cable From the DSL modem Into my vr0 interface.
>>I Plug the Ethernet Cable from the SWITCH into my vr1 interface.
>>
>>I am running ipnat as follows.
>>ipnat.rules
>>----------------
>>map vr0 192.168.0.0/24 -> 0.0.0.0/32 proxy port ftp ftp/tcp
>>map vr0 192.168.0.0/24 -> 0.0.0.0/32 portmap tcp/udp 40000:60000
>>map vr0 192.168.0.0/24 -> 0.0.0.0/32
>>
>>
>>-----------
>>Here are some messages i get from my /var/log/messages.
>>Jun 20 22:47:36 pizzaboys kernel: arp: 192.168.0.198 is on vr0 but got 
>>reply from 00:08:74:4f:57:c5 on vr1
>>
>>
>>Thank You, Stephan Weaver
>>stephanweaver at hotmail.com
>>
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>
>You must delete the routes for the network from both interfaces and add 
>individual host routes to the interfaces.  Suppose you have a cable modem 
>on vr0 add a host route for that Ip and assign it to vr0 interface and add 
>the rest of the hosts in your lan in vr1 interface. Or you can choose a 
>different network or subnet the same ip block
>
>Cheers,
>- Sarath
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