Two NICs one IP address

Linux and Unix-Like Linux
1

I'm looking for a way in RHL 5.1 to use two NICs on one host with two physical IP addresses and map them under one virtual IP address, i.e. NIC 1 10.10.10.1 NIC2 10.10.10.2 VIP 192.168.10.1

Basically I want either one of the NICs to ARP for the VIP. No load balancing required just HA.

2

in solaris this is called IPMP and is an onboard feature... i've never done this in linux. but this should be a driver issue. so have a look at the homepage of the vendor of your nics...

3

hi wschmied,

i'm not really sure what you were up to? was it an L3 IP mapping or purely L2 NIC bonding?

if you want an L3 IP mapping - IMHO AFAIK - you have to create an LVS (even though what you need was only an HA).

just for a simplicity :
this link would be a nice start.

or if you want a pure L2 NIC bonding :
here

HTH.