[Bug 788301] Re: Networking fails with two interfaces on the same network

[Daniel Hahler]

I can confirm this using wlan0 and eth0 on the same network, but assumed
this was "normal".

Did it work before 10.04 with the same setup?

Please provide the output of "route".

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https://bugs.launchpad.net/bugs/788301

Title:
  Networking fails with two interfaces on the same network

Status in “ifupdown” package in Ubuntu:
  Confirmed

Bug description:
  Binary package hint: ifupdown

   Summary: when two network interfaces on the same computer are
  configured on the same network, the networking fails.

    Details: I have two network interfaces eth0 and eth1 which have static addresses: 192.168.1.2 and 192.168.1.3.
    The gateway is a home router which has the address 192.168.1.1.
    When both interfaces are brought up with "ifup", I cannot connect to the Internet. When only the first on is "up" and the other one is "down", the connection to the Internet works well.

  ProblemType: Bug
  DistroRelease: Ubuntu 10.04
  Package: ifupdown 0.6.8ubuntu29.2
  ProcVersionSignature: Ubuntu 2.6.32-31.61-generic 2.6.32.32+drm33.14
  Uname: Linux 2.6.32-31-generic i686
  NonfreeKernelModules: nvidia
  Architecture: i386
  Date: Wed May 25 21:41:45 2011
  ProcEnviron:
   LANGUAGE=
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: ifupdown

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