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[Launchpad Bug Tracker <1111956@xxxxxxxxxxxxxxxxxx>]

[Expired for bcmwl (Ubuntu) because there has been no activity for 60
days.]

** Changed in: bcmwl (Ubuntu)
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/1111956

Title:
  BCM4313 ignores ARP broadcast packets

Status in bcmwl package in Ubuntu:
  Expired

Bug description:
  I'm running ubuntu server 12.04 on a netbook with a Broadcom BCM4313
  wireless chip. I had the wl.ko driver installed by compiling the
  bcmwl-kernel-source package, and everything was good in the world.

  Then, yesterday, I did a dist-upgrade, and the machine now no longer
  responds to ARP broadcast packets. Consider two machines- the affected
  netbook A, and my other windows machines B and C. If I try and ping A
  from B, I get "destination host unreachable". Wireshark on B shows ARP
  broadcast packets going out, but tcpdump on A does not see these
  packets.

  If I then ping B from A, I see an ARP broadcast from A asking "Who has
  B? Tell A", which B responds to. B then sends a "Who has A? Tell B"
  message, but directs this specifically to A's MAC address and not the
  broadcast MAC. A responds to this message, and the pings succeed.
  Because B's ARP table has been filled in this process, pings from B to
  A now work too- but pings from C to A still fail.

  The inability to do inbound connections seems like a pretty big
  showstopper for a server! This is possibly related to this:
  https://bugs.launchpad.net/ubuntu/+source/linux/+bug/414724

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