*** This bug is a duplicate of bug 1193205 ***
https://bugs.launchpad.net/bugs/1193205
** This bug has been marked a duplicate of bug 1193205
dhcp IPv6 sets accept_ra to 0 and doesn't get IPv6 route
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https://bugs.launchpad.net/bugs/1255592
Title:
IPv6 "Automatic, only DHCP" configuration results in no default route
Status in “network-manager” package in Ubuntu:
Triaged
Bug description:
The local network uses SLAAC configuration (with the OtherConfig-Bit
in the RA set) as default configuration for devices. Some devices
however should use a different IPv6 address assigned by statefull
dhcp. Obviously, the ManagedConfiguration bit in the RA is not set, as
this would break the SLAAC clients. When choosing "Automatic, only
DHCP" for IPv6 configuration in the network manager (which translates
into method=dhcp or NM_SETTING_IP6_CONFIG_METHOD_DHCP), the IPv6
address and the IPv6 DNS Servers are successfully assigned, but there
is no ipv6 default route.
This is because NM_SETTING_IP6_CONFIG_METHOD_DHCP reconfigures sysctl
to drop all RAs (accept_ra=0), but DHCPv6 still has no option to set
the gateway IPv6 address (neither its link-local or globally valid
address). So I currently cannot have only some clients use statefull
DHCPv6, which is what I want.
Solution:
either
a) add an option to set sysctl accept_ra=1, autoconf=0 ; so the client
will not use a SLAAC address but still add a default route based on RA
or
b) add a gateway option to DHCPv6.
This bug is to change network manager so the solution a) gets
implemented, as this can be implemented in NetworkManager. Solution b)
would need to be implemented in isc-dhcp-client and might need an
updated RFC, but would allow for different use cases (i.e.
http://www.ietf.org/mail-archive/web/ipv6/current/msg08684.html).
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: network-manager 0.9.4.0-0ubuntu4.4
ProcVersionSignature: Ubuntu 3.2.0-56.86-generic 3.2.51
Uname: Linux 3.2.0-56-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.0.1-0ubuntu17.6
Architecture: amd64
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211
not found.
Date: Wed Nov 27 17:25:05 2013
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
IpRoute:
default via 141.24.40.126 dev eth0 proto static
141.24.40.64/26 dev eth0 proto kernel scope link src 141.24.40.77 metric
1
169.254.0.0/16 dev eth0 scope link metric 1000
IwConfig:
lo no wireless extensions.
eth0 no wireless extensions.
MarkForUpload: True
NetworkManager.state:
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
LANG=de_DE.UTF-8
SHELL=/bin/bash
RfKill:
SourcePackage: network-manager
UpgradeStatus: Upgraded to precise on 2012-09-19 (434 days ago)
nmcli-con:
NAME UUID TYPE
TIMESTAMP TIMESTAMP-REAL AUTOCONNECT READONLY
DBUS-PATH
Kabelnetzwerkverbindung 1 a32a6fb7-ed99-432f-acc8-c97cc3834e76
802-3-ethernet 1385569506 Mi 27 Nov 2013 17:25:06 CET yes
no /org/freedesktop/NetworkManager/Settings/1
nmcli-dev:
DEVICE TYPE STATE DBUS-PATH
eth0 802-3-ethernet connected
/org/freedesktop/NetworkManager/Devices/0
nmcli-nm:
RUNNING VERSION STATE NET-ENABLED WIFI-HARDWARE
WIFI WWAN-HARDWARE WWAN
running 0.9.4.0 connected enabled enabled
enabled enabled disabled
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