Ok, as planned I can reproduce this in local autopkgtest.
Multiple hits on:
AssertionError: Regex didn't match: 'inet6 2600::[0-9a-f:]+/64 scope global
(?:tentative )?(?:mngtmpaddr )?(?:noprefixroute )?dynamic' not found in '14:
eth42@veth42: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP
group default qlen 1000\n link/ether d6:77:5c:e0:6e:89 brd
ff:ff:ff:ff:ff:ff\n inet6 2600::19/128 scope global dynamic noprefixroute \n
valid_lft 86399sec preferred_lft 86399sec\n inet6
2600::4d67:83f1:60b3:9385/64 scope global noprefixroute \n valid_lft
forever preferred_lft forever\n inet6 fe80::892a:6b8:c86a:50a2/64 scope link
noprefixroute \n valid_lft forever preferred_lft forever\n'
Due to the changes this is dynamic->forever for some, but not all, of the
cases.
An MP has been proposed here [1] which in local VM based autopkgtest already
succeeded.
@Iain/Desktop-team - would you have a look and if you agree upload that NM
update?
[1]: https://code.launchpad.net/~paelzer/ubuntu/+source/network-
manager/+git/network-manager/+merge/405081
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https://bugs.launchpad.net/bugs/1894619
Title:
[2.82 regression] router announcements have 'forever' lifetime by
default
Status in dnsmasq package in Ubuntu:
Triaged
Status in network-manager package in Ubuntu:
New
Status in dnsmasq source package in Groovy:
Fix Released
Status in network-manager source package in Groovy:
Invalid
Status in dnsmasq source package in Hirsute:
Fix Released
Status in network-manager source package in Hirsute:
Invalid
Status in dnsmasq source package in Impish:
Triaged
Status in network-manager source package in Impish:
New
Status in dnsmasq package in Debian:
Fix Released
Bug description:
The default lifetime was changed to 1 day in 2.82 in the change
corresponding to this changelog entry:
Change default lease time for DHCPv6 to one day.
Fine, but the same commit also did this:
Alter calculation of preferred and valid times in router
advertisements, so that these do not have a floor applied
of the lease time in the dhcp-range if this is not explicitly
specified and is merely the default.
And that change is buggy and causes advertisements to have infinite
lifetime, when you are using the default.
See this thread
http://lists.thekelleys.org.uk/pipermail/dnsmasq-
discuss/2020q3/014341.html
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