[Xorp-users] Virtual IP on Router Cluster

[Pavlin Radoslavov]

> > You might want to rethink your setup and see whether you can achieve
> > it with a single OSPF address.
> 
> Okay then, would it work with alias interfaces like eth0:0? They are run as 
> separate interfaces. I did not find any hint on how ospfv2 in XORP deals 
> with alias interfaces.
> Guess I have to just test it.

The Linux alias interfaces like eth0:0 are not real interfaces.
It is just how ifconfig prints the IP aliases.
E.g., if you use "ip addr" you won't see them.

You might want to try using VLANs as Ben suggested.

FYI, VLANs are supported in XORP-1.5-RC, and the RELEASE_NOTES
contains an example how to configure a VLAN using XORP (the User
Manual is not updated yet).
Of course, you could also configure the VLANs before starting XORP,
and in that case you won't need the "vlan" block under the "vif"
node.

If having interfaces/vifs named eth0/vlan1 and eth0/vlan2 doesn't
help you at the OSPF level, you could try to use XORP
interfaces/vifs named vlan1/vlan1 and vlan2/vlan2, but in that case
you must configure the VLANs before starting XORP.

Pavlin