James McDonald, thank you for reporting this bug to Ubuntu. Natty reached EOL
on October 28, 2012.
See this document for currently supported Ubuntu releases:
https://wiki.ubuntu.com/Releases
Is this an issue in a supported release? If so, could you please execute the
following command, as it will automatically gather debugging information, in a
terminal:
apport-collect 771209
** Package changed: ubuntu => linux (Ubuntu)
** Changed in: linux (Ubuntu)
Importance: Undecided => Low
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
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https://bugs.launchpad.net/bugs/771209
Title:
VLANs no longer work with bridges in natty
Status in “linux” package in Ubuntu:
Incomplete
Bug description:
I'm not sure which package to put this against - it could be bridge-
utils, vlan, linux-image-2.6.35-28-generic or possibly ifupdown. This
problem appeared with Ubuntu 11.04 - the same configuration works
perfectly with 10.10.
If I use the following /etc/network/interfaces sections:
auto br0
iface br0 inet static
bridge_ports eth0
bridge_stp off
bridge_fd 0
bridge_maxwait 0
address 10.58.32.6
netmask 255.255.248.0
post-up route add -net 10.58.0.0/16 gw 10.58.32.1
auto vlan100
iface vlan100 inet static
vlan-raw-device eth0
address x.y.z.11
netmask 255.255.255.224
gateway x.y.z.1
Both interfaces appear to come up, but the vlan interface cannot
communicate - it can't even ping the gateway on its network. Changing
the vlan-raw-device to br0 yields the same result. If I remove the br0
section and configure eth0 directly everything works as expected.
ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: vlan 1.9-3ubuntu3
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic x86_64
NonfreeKernelModules: nvidia
Architecture: amd64
Date: Tue Apr 26 14:15:14 2011
ProcEnviron:
LANGUAGE=en_GB:en
PATH=(custom, user)
LANG=en_GB.UTF-8
SHELL=/bin/bash
SourcePackage: vlan
UpgradeStatus: Upgraded to natty on 2011-04-14 (11 days ago)
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