[Bug 1167614] Re: DHCP server incorrectly handling VLAN tagged packets

[Kevin Otte]

I think this may have had something to do with the way I was tagging
packets. I had eth0 as a member of br0 and then a tagged interface
br.120 on top of that. I switched it around so the tagged interface was
directly on eth0 and it seems to be behaving itself now.

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to isc-dhcp in Ubuntu.
https://bugs.launchpad.net/bugs/1167614

Title:
  DHCP server incorrectly handling VLAN tagged packets

Status in “isc-dhcp” package in Ubuntu:
  New
Status in Debian GNU/Linux:
  New

Bug description:
  Upon receipt of a VLAN tagged packet, the DHCP server is processing it
  as though it was received without a VLAN tag.

  Steps to reproduce:
  - Send a DHCPDISCOVER packet to the broadcast address with a VLAN tag

  Expected results:
  - None. The DHCP server should ignore this packet.

  Actual results:
  - The DHCP server interprets the packet as though it were received untagged and transmits a response accordingly.

  Comments:
  - I believe this to be an instance of Debian bug #643564

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: isc-dhcp-server 4.1.ESV-R4-0ubuntu5.6
  ProcVersionSignature: Ubuntu 3.2.0-40.64-generic 3.2.40
  Uname: Linux 3.2.0-40-generic x86_64
  ApportVersion: 2.0.1-0ubuntu17.1
  Architecture: amd64
  Date: Wed Apr 10 18:42:30 2013
  MarkForUpload: True
  ProcEnviron:
   TERM=screen
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: isc-dhcp
  UpgradeStatus: Upgraded to precise on 2012-09-01 (221 days ago)
  modified.conffile..etc.dhcp.dhcpd.conf: [modified]
  mtime.conffile..etc.dhcp.dhcpd.conf: 2012-12-14T11:32:45

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1167614/+subscriptions