Re: primary and secondary ip addresses

[Henrik Nordstrom <hno@xxxxxxxxxxxxxxx>]

On Fri, 17 Dec 2004, Andrea G Forte wrote:

> Well, when I assign a new IP (for a new subnet) to the same interface (using 
> ip route add...),  even though the routing table is updated, it still takes 
> about 500ms for the change to happen. This new IP should be detected as 
> primary, right?
If it is on a new subnet yes.

> Also, am I right to say that any IP address assigned to an 
> alias interface is a secondary IP?
It is irrelevant if you label the address or not. The "alias" labels are 
just a compatibility layer to work with old userspace programs (mainly 
ifconfig), not interfaces of their own.
See /sbin/ip addr for all the details.

Regards
Henrik