Is it kosher to have 2 global eth0 non-secondary IPs? Or should anything other than

abefroman · 09-17-2013, 12:22 PM

Is it kosher to have 2 global eth0 non-secondary IPs?

Or should anything other than the main IP be secondary. Ex:

Code:

inet 11.11.11.75/24 brd 11.11.11.255 scope global eth0
    inet 11.11.11.201/25 scope global eth0
    inet 11.11.11.210/25 scope global secondary eth0
    inet 11.11.11.203/25 scope global secondary eth0

TIA

zhjim · 09-18-2013, 05:16 AM

You can have as many IP addresses configuried as you want. Just keep in mind that the primary one is used as your source address when sending packages out. When you need to send from different IP some binaries have an option for this and I guess most of the daemon also adhore to it. Just for example ping has an option to configure the outgoing IP and I believe even interfaces.

In case you want to have control over which IP is used for what check out the lartc guide it has some entries about configurering the routing table.