RE: 2 NIC's on same network, possible?

I have to nic on the same switch right now... running openbsd3.2-stable.

For the first couple of hours/days I got tons of messages saying that the arp data was being updated by the first NIC and then a while later it was back to the second NIC..

If you want fail-over, the second NIC in your picture has a second IP. if the first IP fails... how will they know to goto the second.

Make a small program, Perl or something, that checks that network is up. and when its no longer up, ifconfig eth0 down and ifconfig eth1 up and have them with same IP.

Not sure if this will work.

I needed mine for some testing, I had netstart start the main NIC, and rc.local started second NIC using ifconfig eth1 -arp

to disable that NIC from using or hearing arp traffic.

the messages about arp data is no longer coming up.

Do you need help?

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However, if anything (like the other test system, in my case it was a router) I had to add a static arp entry on the router so it could talk to the second NICs IP. if you don't you won't be able to ping or anything.

Hope this help,

WT
--- Max Harvey <IT@smc.ac.nz> wrote:
> > From: Vineet Mehta [mailto:vineet@linux.com.kw]
>