The connectivity server does handle IPv6 now
** Changed in: network-manager (Ubuntu)
Status: Confirmed => Fix Released
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https://bugs.launchpad.net/bugs/1815036
Title:
uri defined for connectivity check does not have IPv6 address
Status in network-manager package in Ubuntu:
Fix Released
Bug description:
As per subject. This package defines the file
/usr/lib/NetworkManager/conf.d/20-connectivity-ubuntu.conf, which
defines the uri for the connectivity check to be http://connectivity-
check.ubuntu.com
This hostname does not resolve to an IPv6 address. Therefore, even if
the user has fully working IPv6, the connectivity check for IPv6 will
fail. As a result, the IPv6 default routes will be heavily
deprioritised (ie: having 20000 added to the metric) rendering them
effectively inoperable absent a deliberate effort to use IPv6-only
addresses.
NB: This was discovered by-the-by during reporting of bug #1814262
upstream at
https://gitlab.freedesktop.org/NetworkManager/NetworkManager/issues/116#note_114448
It seems to be irrelevant to the main thrust of that bug, which is
that IPv4 wired routes are not being identified as working correctly.
In fact, when I switch to network-manager-config-connectivity-debian,
the hostname defined there *does* have a working IPv6 address, and the
issue actually being reported in that other bug does not affect the
IPv6 routes, only the IPv4 ones.
The bug here probably doesn't need any change made to the package
itself, but rather to the networking of the actual target URL. It
needs an IPv6 (AAAA) DNS record, and for it to function on that
address.
I note in passing the debian connectivity check URL resolves to
several IP addresses - four IPv4 addresses and 3 IPv6 addresses,
presumably geographically diverse. (It's actually a CNAME to
static.debian.org) This looks like it would be a more reliable target
for connectivity checks. The ubuntu URL only resolves to a single IPv4
address.
ProblemType: Bug
DistroRelease: Ubuntu 19.04
Package: network-manager-config-connectivity-ubuntu 1.15.2-0ubuntu1
ProcVersionSignature: Ubuntu 4.19.0-12.13-generic 4.19.18
Uname: Linux 4.19.0-12-generic x86_64
ApportVersion: 2.20.10-0ubuntu20
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Thu Feb 7 12:35:24 2019
IfupdownConfig:
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
InstallationDate: Installed on 2018-09-11 (148 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180214)
IpRoute:
default via 192.168.1.254 dev enp63s0 proto dhcp metric 100
default via 192.168.1.254 dev wlp2s0 proto dhcp metric 20600
169.254.0.0/16 dev wlp2s0 scope link metric 1000
192.168.1.0/24 dev enp63s0 proto kernel scope link src 192.168.1.106 metric
100
192.168.1.0/24 dev wlp2s0 proto kernel scope link src 192.168.1.101 metric
600
NetworkManager.state:
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
PackageArchitecture: all
SourcePackage: network-manager
UpgradeStatus: Upgraded to disco on 2019-01-13 (24 days ago)
nmcli-nm:
RUNNING VERSION STATE STARTUP CONNECTIVITY NETWORKING WIFI-HW
WIFI WWAN-HW WWAN
running 1.15.2 connected started full enabled enabled
enabled enabled enabled
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