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Network problem with eth0 and eth1

Discussion in 'Server Configuration and Hosting' started by Sheratan, Oct 22, 2013.

  1. Sheratan

    Sheratan Well-Known Member

    So I had 4 Dedicated with 2 connection line. Each server had:

    > eth0, onboard with private IP (10.10.x.x)
    > eth1, LAN card with 2 public IP
    > Ubuntu 12.04.3 LTS

    Recently, I had to restart server1 and server4. And after that, I can't SSH nor ping server1 and server4. After trying to disable eth0 in /etc/network/interfaces and reboot again, I can connect and login to SSH.

    Now I had no idea why this would be happen. Right now server1 and server4 are running without eth0 enabled. Any help how to enable eth0 again without any problem to eth1?

    ps: English is not my native language.
     
  2. infis

    infis Well-Known Member

    –°an you publish here your /etc/network/interfaces?
     
  3. Sheratan

    Sheratan Well-Known Member

    Server 1

    auto eth1
    iface eth1 inet static
    address 103.x.x.235
    netmask 255.255.255.240
    network 103.x.x.224
    broadcast 103.x.x.239
    gateway 103.x.x.225
    dns-nameservers 8.8.8.8

    auto eth1:1
    iface eth1:1 inet static
    address 103.x.x.236
    netmask 255.255.255.240
    network 103.x.x.224
    broadcast 103.x.x.239

    #auto eth0
    #iface eth0 inet static
    #address 10.10.8.251
    #gateway : 10.10.8.1
    #netmask : 255.255.255.0
    #network : 10.10.8.0
    #broadcast : 10.10.8.255
     
    Last edited: Oct 22, 2013
  4. infis

    infis Well-Known Member

    Try this:
    Code:
    auto eth1
    allow-hotplug eth1
    iface eth1 inet static
    address 103.x.x.235
    netmask 255.255.255.240
    gateway 103.x.x.225
    dns-nameservers 8.8.8.8
    up ip addr add 103.x.x.235/28 dev eth1 label eth1:0
    down ip addr del 103.x.x.235/28 dev eth1 label eth1:0
    up ip addr add 103.x.x.236/28 dev eth1 label eth1:1
    down ip addr del 103.x.x.236/28 dev eth1 label eth1:1
     

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