How to correctly use 2 on board nics

[Bob]

The most common configuration for using two nic's is one nic is used for
your dsl or cable modem connection to your ISP and the second nic services
your local LAN.

-----Original Message-----
From: owner-freebsd-questions at freebsd.org
[mailto:owner-freebsd-questions at freebsd.org]On Behalf Of Ivan Carey
Sent: Tuesday, June 05, 2007 6:55 AM
To: freebsd-questions at freebsd.org
Subject: How to correctly use 2 on board nics

Hello
I have a server board with 2 onboard nic's
I have set them up in rc.conf as follows

defaultrouter="192.168.1.1"
network_interfaces="em0 em1 lo0"
ifconfig_em0="inet 192.168.1.3 netmask 255.255.255.0"
ifconfig_em1="inet 192.168.1.4 netmask 255.255.255.0"

The question, is this the correct configuration?

If I have both nic's connected to the switch I can ping 192.168.1.1 and
192.168.1.3 and 192.168.1.4

If I have only em0 connected I can ping 192.168.1.1 and 192.168.1.3

If I have only em1 connected I can ping 192.168.1.3.

What could the 2 onboard nic's be best used for. I was thinking that in
the event on was to fail then the other would still be ok.

Any ideas would help.
Thanks,
Ivan
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