Re: Sub interface not working in Debian 8

I didnt route anything as default gateway was already there. can you please explain your routes more. i didnt get the context of that routes you define.

On Tue, Dec 27, 2016 at 5:39 PM, Xen <list@xenhideout.nl> wrote:

Muhammad Yousuf Khan schreef op 27-12-2016 12:22:

can you guys please guide what is going on . in old Debian version i
do this with no problem sub interfaces were very easy task. but here i
invest the whole day.

I must say I have run into many problems on my own machine but never this one.

Are you sure your gateway recognises your secondary IP?

I even have 2 IPs on such an alias and they all work fine:

iface eth0 inet manual
pre-up ip link set eth0 up

iface eth0:0 inet dhcp

iface eth0:1 inet static
address 149.x.x.127
netmask 255.255.255.0

In my case I do additional routing:

ip rule add from 149.x.x.127 (that's the secondary) lookup 2
ip route add default via 149.x.x.1 (gateway address for the second IP) table 2

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