Web server with 2 NIC:s

[misve]

Hello everyone!

I have problem that actually is more network related than web server related. But since the problems affects a web server I guess it is OK to post in this category.

In short: One xServe (10.2.8 server) with 2 NIC:s. One NIC [NIC1] connected directly to Internet (on one network) and the other NIC [NIC2] connected to a network (a completely different one) where some load balancing Linux servers are routing traffic from Internet via the load balancing mechanism to the NIC.

Problem: Requests coming from Internet via NIC1 should be answered via NIC1, and it works just fine. In the same way, requests coming from Internet, via load balancing Linux servers, via NIC2, should be answered via NIC2. That little detail doesn’t work. All incoming traffic via NIC2 is answered via NIC1.

Some Extras: If I make a request “inside” from the load balancing Linux servers direct to NIC2 traffic returns the right way via NIC2.

How can I solve this problem?

Regards and TIA,

Mikael

[Author]

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