3 subnets on 2 NICs

proxale

Active Member
May 24, 2020
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On my ProxMox servers, I have two NICs for user traffic. They are configured as br0 (192.168.90.x) and br1 (192.168.100.x)

Ideally I would love to bond the two NICS into one interface and connect them to two separate switches for physical redundancy. But I was not able to get this working when I first setup the ProxMox cluster.

Now I need to allow a third subnet 192.168.110.x
And it seems that I cannot setup more than 1 gateway per NIC and the only solution seems to be adding a 3rd NIC which is not an option currently.

Any recommendation/suggested setup I can use to host the 3rd subnet with only 2 NICs?
 

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