changing eth0 to default

[kanjah]

hi there, ave installed ubuntu 12 server, with 2 NIC cards, choose eth0 to be primary during installation, for squid3 proxy. Nw internet only works with eth1 not eth0 which is the primary. due to this i cant configure the iptables and lan. running sudo nano /etc/network/interfaces
shows

#the primary network interface

auto eth0 inet static
address 81.25.128.x
netmask 255.255.255.x
gateway 81.25.128.x
#dns -xoptions are implemented by the resolvconf package,
dns-nameservers 91.x.x.x 91.x.x.x

iface eth1 inet static
address 81.25.128.x
netmask 255.255.255.x
brodcast 81.25.128.x


any advice?
thanks

[falko]

Did you configure the same IP for eth0 and eth1?

[kanjah]

it seems that they are swapped...eth1 became the primary

[falko]

http://www.linuxquestions.org/questi...d-eth1-308008/