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[Bug 1535877] [NEW] dhclient is trying to get ipv4 info through an ipv6 device

 

Public bug reported:

Or at least is the analysis I did, exact situation is as follow:

- Arrived in a friend's appartment, phone (Android) connected to
internet OK

- Opened the laptop, NetworkManager showed the attempt to connect, then
finished saying "connected", but the icon wasn't right, and I didn't
have internet in the computer

- Wife's phone (android) connected ok (just mentioning this to mark the
fact that the router had free IPs, etc.)

- I started debugging, couldn't make it work. Finally, I hardcoded the
IP, mask, gateway, and DNSs, and everything worked ok, so it leaded me
to distrust dhclient in the process

Attached are the full syslogs from the connection attempt, with the info
from devices and routes after leaving it to connect.

Thanks!

ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: isc-dhcp-client 4.3.1-5ubuntu3.1
ProcVersionSignature: Ubuntu 4.2.0-23.28-generic 4.2.6
Uname: Linux 4.2.0-23-generic x86_64
ApportVersion: 2.19.1-0ubuntu5
Architecture: amd64
CurrentDesktop: Unity
Date: Tue Jan 19 14:33:00 2016
DhclientLeases:
 
InstallationDate: Installed on 2015-10-26 (85 days ago)
InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
SourcePackage: isc-dhcp
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: isc-dhcp (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug wily

** Attachment added: "Syslog log while connecting and getting info, and status of devices, routes, etc"
   https://bugs.launchpad.net/bugs/1535877/+attachment/4552849/+files/info.log

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https://bugs.launchpad.net/bugs/1535877

Title:
  dhclient is trying to get ipv4 info through an ipv6 device

Status in isc-dhcp package in Ubuntu:
  New

Bug description:
  Or at least is the analysis I did, exact situation is as follow:

  - Arrived in a friend's appartment, phone (Android) connected to
  internet OK

  - Opened the laptop, NetworkManager showed the attempt to connect,
  then finished saying "connected", but the icon wasn't right, and I
  didn't have internet in the computer

  - Wife's phone (android) connected ok (just mentioning this to mark
  the fact that the router had free IPs, etc.)

  - I started debugging, couldn't make it work. Finally, I hardcoded the
  IP, mask, gateway, and DNSs, and everything worked ok, so it leaded me
  to distrust dhclient in the process

  Attached are the full syslogs from the connection attempt, with the
  info from devices and routes after leaving it to connect.

  Thanks!

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: isc-dhcp-client 4.3.1-5ubuntu3.1
  ProcVersionSignature: Ubuntu 4.2.0-23.28-generic 4.2.6
  Uname: Linux 4.2.0-23-generic x86_64
  ApportVersion: 2.19.1-0ubuntu5
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Tue Jan 19 14:33:00 2016
  DhclientLeases:
   
  InstallationDate: Installed on 2015-10-26 (85 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  SourcePackage: isc-dhcp
  UpgradeStatus: No upgrade log present (probably fresh install)

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