DHCP server incorrectly handling VLAN tagged packets
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
Debian |
Fix Released
|
Unknown
|
|||
isc-dhcp (Ubuntu) |
Confirmed
|
High
|
Unassigned |
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-
ProcVersionSign
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.
mtime.conffile.
Changed in debian: | |
status: | Unknown → New |
Changed in isc-dhcp (Ubuntu): | |
importance: | Undecided → High |
Changed in debian: | |
status: | New → Fix Released |
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.