Two white IP addresses on the gateway?

Question

linux

Good day. There is a gateway on gentoo. It has two cards. One looks in the Internet (eth1), the second in LAN (eth0). Vlans are up on eth0. All this economy is united in br0. As a result, we get eth1 - external with a white IP, br0 - LAN. Well, that's all vlan[2-xx] The

question is, how to hang another white IP address for the post server on the gateway? Will it be enough to raise eth1:0 or not? Also, the second white IP is from a different subnet and with a different gateway, of course.
There is also a white IP from the same subnet as the gateway.

Answer 1

Yes, enough.