I ran into the same problem with 17.10 and I solved it without any fixed
or workarounds. But this is not an ubuntu bug! It's a false
configuration. There are 2 Options for automatic IPv6 configuration in
network manager. "Automatic" and "Automatic (DHCP only)". IPv6 router
advertisment is not part
Has this been discussed with upstream developers as mentioned in comment
#8? This issue still exists in 0.9.8.8-0ubuntu28 (14.10). Don't know
about newer NM versions.
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Thanks to both of you for the more precise analysis of the problem and
for your work on a patch to NM.
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https://bugs.launchpad.net/bugs/1193205
Title:
dhcp IPv6 sets accept_ra to 0 and
Confirming. I had misunderstood the issue.
I can reproduce the problem here, so I'll work on a fix in NM code after
discussing with the upstream developers.
Thanks!
** Changed in: network-manager (Ubuntu)
Status: Incomplete = Triaged
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As a side note: if you accept the RAs, you will not only get the
missing routes, but also the SLAAC addresses. So this is not anymore the
Automatic (DHCP only) option as advertised.
If this is not what you want, you should simply set
echo 1 /proc/sys/net/ipv6/conf/ethX/accept_ra
echo 0
Get routes via DHCPv6 ? Strange. The whole idea of disabling RAs in IPv6
is strange, anyway.
I don't expect anything from DHCPv6, I was just playing around with this
option, trying to understand what it does.
I suppose that your questions apply to the original bug reporter. We'll
let him answer,
You can still get routes via DHCP, we just never request them; I think
adding the static-routes option my help a lot in this regard. There are
various options possible for DHCPv6... Would you be in a position to
further describe your setup so we can add this to the test cases?
I'd be interested
Same here.
I was wondering whether this is really a bug. Can't DHCPv6 advertise a
default gateway like DHCP used to do for IPv4? It seems that it is out
of scope for DHCPv6, and that you have to do it with RAs. So yes, it
looks like a bug.
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Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: network-manager (Ubuntu)
Status: New = Confirmed
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https://bugs.launchpad.net/bugs/1193205
As a side note: if you accept the RAs, you will not only get the missing
routes, but also the SLAAC addresses. So this is not anymore the
Automatic (DHCP only) option as advertised.
Maybe the bug report could be restated as
Does the 'DHCP only' option for IPv6 in Network Manager
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