Public bug reported:
Have an unusual issue.
I have (native) IPv6 on my network. Typically, each connection has two
dhclient processes; one for a v4 address, and dhclient with the -6
parameter for the v6 connection.
Upon running 'ufw enable' in a console, a firewall is activated. After
restarting NetworkManager, only one dhclient process is started by
NetworkManager.
This was undesirable, so I ran 'ufw disable', and rebooted just to be
sure nothing had been left around. All rules gone, but now
NetworkManager is point blankly refusing to start a dhclient process for
the IPv6 side of networking.
I've tried starting NetworkManager with --log-level=DEBUG and watching
syslog; nothing seems to indicate that dhclient is even started for
IPv6. The only potential indicator of something unusual is 'ipv6.method'
being set to 'ignore' periodically, e.g.:
Apr 25 11:22:57 lpt00258lin-gorgonzola NetworkManager[9238]: <debug>
[1556187777.9076] ++ ipv6.method = 'auto'
Apr 25 11:22:57 lpt00258lin-gorgonzola NetworkManager[9238]: <debug>
[1556187777.9080] ++ ipv6.method = 'auto'
Apr 25 11:22:57 lpt00258lin-gorgonzola NetworkManager[9238]: <debug>
[1556187777.9168] ++ ipv6.method = 'ignore'
Apr 25 11:22:57 lpt00258lin-gorgonzola NetworkManager[9238]: <debug>
[1556187777.9224] ++ ipv6.method = 'ignore'
Any clues would be most helpful!
ProblemType: Bug
DistroRelease: Ubuntu 19.04
Package: network-manager 1.16.0-0ubuntu2
ProcVersionSignature: Ubuntu 5.0.0-13.14-generic 5.0.6
Uname: Linux 5.0.0-13-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.10-0ubuntu27
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Thu Apr 25 12:17:43 2019
IfupdownConfig:
# ifupdown has been replaced by netplan(5) on this system. See
# /etc/netplan for current configuration.
# To re-enable ifupdown on this system, you can run:
# sudo apt install ifupdown
NetworkManager.state:
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
ProcEnviron:
TERM=screen-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_GB.UTF-8
SHELL=/bin/zsh
SourcePackage: network-manager
UpgradeStatus: Upgraded to disco on 2019-04-23 (2 days ago)
nmcli-nm:
RUNNING VERSION STATE STARTUP CONNECTIVITY NETWORKING WIFI-HW WIFI
WWAN-HW WWAN
running 1.16.0 connected started full enabled enabled
enabled enabled enabled
** Affects: network-manager (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug disco wayland-session
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Touch seeded packages, which is subscribed to network-manager in Ubuntu.
https://bugs.launchpad.net/bugs/1826394
Title:
IPv6 not being brought up on interface after enabling (and
subsequently disabling & rebooting) UFW
Status in network-manager package in Ubuntu:
New
Bug description:
Have an unusual issue.
I have (native) IPv6 on my network. Typically, each connection has two
dhclient processes; one for a v4 address, and dhclient with the -6
parameter for the v6 connection.
Upon running 'ufw enable' in a console, a firewall is activated. After
restarting NetworkManager, only one dhclient process is started by
NetworkManager.
This was undesirable, so I ran 'ufw disable', and rebooted just to be
sure nothing had been left around. All rules gone, but now
NetworkManager is point blankly refusing to start a dhclient process
for the IPv6 side of networking.
I've tried starting NetworkManager with --log-level=DEBUG and watching
syslog; nothing seems to indicate that dhclient is even started for
IPv6. The only potential indicator of something unusual is
'ipv6.method' being set to 'ignore' periodically, e.g.:
Apr 25 11:22:57 lpt00258lin-gorgonzola NetworkManager[9238]: <debug>
[1556187777.9076] ++ ipv6.method = 'auto'
Apr 25 11:22:57 lpt00258lin-gorgonzola NetworkManager[9238]: <debug>
[1556187777.9080] ++ ipv6.method = 'auto'
Apr 25 11:22:57 lpt00258lin-gorgonzola NetworkManager[9238]: <debug>
[1556187777.9168] ++ ipv6.method = 'ignore'
Apr 25 11:22:57 lpt00258lin-gorgonzola NetworkManager[9238]: <debug>
[1556187777.9224] ++ ipv6.method = 'ignore'
Any clues would be most helpful!
ProblemType: Bug
DistroRelease: Ubuntu 19.04
Package: network-manager 1.16.0-0ubuntu2
ProcVersionSignature: Ubuntu 5.0.0-13.14-generic 5.0.6
Uname: Linux 5.0.0-13-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.10-0ubuntu27
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Thu Apr 25 12:17:43 2019
IfupdownConfig:
# ifupdown has been replaced by netplan(5) on this system. See
# /etc/netplan for current configuration.
# To re-enable ifupdown on this system, you can run:
# sudo apt install ifupdown
NetworkManager.state:
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
ProcEnviron:
TERM=screen-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_GB.UTF-8
SHELL=/bin/zsh
SourcePackage: network-manager
UpgradeStatus: Upgraded to disco on 2019-04-23 (2 days ago)
nmcli-nm:
RUNNING VERSION STATE STARTUP CONNECTIVITY NETWORKING WIFI-HW
WIFI WWAN-HW WWAN
running 1.16.0 connected started full enabled enabled
enabled enabled enabled
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1826394/+subscriptions
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