[Bug 1693819] Re: dhclient DHCPv6 does not work with interface alias
Ubuntu Foundations Team Bug Bot
1693819 at bugs.launchpad.net
Fri May 26 20:34:36 UTC 2017
The attachment "lp1693819-trusty.debdiff" seems to be a debdiff. The
ubuntu-sponsors team has been subscribed to the bug report so that they
can review and hopefully sponsor the debdiff. If the attachment isn't a
patch, please remove the "patch" flag from the attachment, remove the
"patch" tag, and if you are member of the ~ubuntu-sponsors, unsubscribe
the team.
[This is an automated message performed by a Launchpad user owned by
~brian-murray, for any issue please contact him.]
** Tags added: patch
--
You received this bug notification because you are a member of Ubuntu
Sponsors Team, which is subscribed to the bug report.
https://bugs.launchpad.net/bugs/1693819
Title:
dhclient DHCPv6 does not work with interface alias
Status in isc-dhcp package in Ubuntu:
New
Status in isc-dhcp source package in Trusty:
New
Status in isc-dhcp source package in Xenial:
New
Status in isc-dhcp source package in Yakkety:
New
Status in isc-dhcp source package in Zesty:
New
Status in isc-dhcp source package in Artful:
New
Status in isc-dhcp package in Debian:
Unknown
Bug description:
[Impact]
The isc-dhcp-client dhclient program does not work with interface
alias names, e.g. eth0:1. It fails immediately.
[Test Case]
On trusty through artful, find an interface that is connected to a
network that has a DHCPv6 server on it. First verify it can get a
DHCPv6 address, e.g.:
$ sudo dhclient -6 -v ens7
that should successfully set up a DHCPv6 address on the interface.
Then release the interface:
$ sudo dhclient -6 -v -r ens7
Now, try again but use the interface alias, e.g.:
$ sudo dhclient -6 -v ens7:1
It should succeed, but it will fail with:
no link-local IPv6 address for ens7:1
[Regression Potential]
Changing how isc-dhcp handles (enumerates/lists/compares) interface
names may lead to isc-dhcp using the wrong interface or failing to
find the correct interface to use. However, if the only change is to
strip the alias part from the interface during comparison, the
possibility of error should be small, since all interface aliases
point back to the same physical interface.
[Other Info]
This bug exists in the upstream isc-dhcp; the ISC has no public bug
tracker, and only accepts bug reports via private email, which has
been sent.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1693819/+subscriptions
More information about the Ubuntu-sponsors
mailing list