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    Unipi G100 Setup static ip on both interfaces eth0 eth1

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    • roberts_lando
      roberts_lando last edited by

      Hi, I would like to setup both eth interfaces with a static ip. By default the content of /etc/network/interfaces.d/ directory is:

      root@G100-sn26:/etc/network/interfaces.d# ls
      br0  eth0  eth1
      root@G100-sn26:/etc/network/interfaces.d# cat br0 
      
      auto br0
      iface br0 inet dhcp
          bridge_ports eth0 eth1
      
      root@G100-sn26:/etc/network/interfaces.d# cat eth1
      
      allow-hotplug eth1
      iface eth1 inet manual
      
      root@G100-sn26:/etc/network/interfaces.d# cat eth0
      
      allow-hotplug eth0
      iface eth0 inet manual
      
      

      This means that there will be an interface br0 with DHCP enabled and all traffic from both interfaces is bridged from one to the other (like a switch).

      What I would like to do is have both interfaces setted up with a static ip (in 2 differents networks). What I tried is to remove the br0 interface and then setup eth0 like follow:

      root@G100-sn26:/etc/network/interfaces.d# rm br0 
      root@G100-sn26:/etc/network/interfaces.d# cat eth0
      allow-hotplug eth0
      iface eth0 inet static
      address 192.168.1.60
      netmask 255.255.255.0
      gateway 192.168.1.1
      dns-nameservers 8.8.8.8 8.8.4.4
      

      If I restart the network service the eth0 interface is working correctly but now If I do the same with eth1:

      root@G100-sn26:/etc/network/interfaces.d# cat eth1
      allow-hotplug eth1
      iface eth1 inet static
      address 192.168.2.60
      netmask 255.255.255.0
      gateway 192.168.2.1
      dns-nameservers 192.168.2.1
      

      the device stops responding and I have to put it in service mode to restore the default interfaces configuration. How can I do this?

      Martin Kudláček 1 Reply Last reply Reply Quote 0
      • Martin Kudláček
        Martin Kudláček @roberts_lando last edited by

        Hi @roberts_lando,
        the problem probably lies in the dual gateway settings. The gateway should be set only on one interface. Same applies to the DNS settings, which I would put to the /etc/resolv.conf instead of here.

        Best regards,
        Martin

        1 Reply Last reply Reply Quote 1
        • roberts_lando
          roberts_lando last edited by

          I fixed by simply removing gateway and dns-nameservers definitions from the eth1 file.

          If anyone is interested in this the solution to make this working with also the gateway check: https://www.thomas-krenn.com/en/wiki/Two_Default_Gateways_on_One_System

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