group.of.nepali.translators team mailing list archive

[Dan Streetman <dan.streetman@xxxxxxxxxxxxx>]

This has been assigned upstream ISC bug: ISC-Bugs #45294

ISC's bug tracking is not public, so there is no way to track any
upstream progress in fixing this.

** Bug watch added: Debian Bug tracker #863426
   http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=863426

** Also affects: isc-dhcp (Debian) via
   http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=863426
   Importance: Unknown
       Status: Unknown

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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.

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