duplicate entries in Kernel IPv6 routing table

[nitin yadav]

Hi,

i am getting duplicate default route (::/0) entries in kernel routing table .

route -6 -n
Kernel IPv6 routing table
Destination Next Hop Flag Met Ref Use If
fe80::/64 :: U 256 0 0 eth4
::/0 :: !n -1 1 2 lo
::1/128 :: Un 0 1 5162 lo
fe80::7ae7:d1ff:feec:ef2c/128 :: Un 0 1 24 lo
ff00::/8 :: U 256 0 0 eth4
::/0 :: !n -1 1 2 lo

Pls let me know if anyone having some idea on this .

[Mathieu Trudel-Lapierre (cyphermox)]

Do you also have messages like "ndisc_router_discovery() failed to add default route" in /var/log/syslog or /var/log/dmesg?

Please run the command 'apport-collect 977725' to add additional debugging information to this bug report.

Thanks in advance!

[nitin yadav (nitinyadav91)]

hi Mathieu,
thanks for replying !!!
but i did no get messages like "ndisc_router_discovery() failed in all log
files.
This is the kernel problem because i execute same command in SUSE , i am
not getting duplicate entries .

SUSE system:
route -A inet6
Kernel IPv6 routing table
Destination Next
Hop Flags Metric Ref Use Iface
fe80::/64
:: U 256 0 0 eth0
fe80::/64
:: U 256 0 0 eth1
::1/128
:: U 0 125 1 lo
fe80::21f:29ff:fee5:5b40/128
:: U 0 0 1 lo
fe80::21f:29ff:fee5:5b42/128
:: U 0 0 1 lo
ff00::/8
:: U 256 0 0 eth0
ff00::/8
:: U 256 0 0 eth1

Linux system (in all version 2.6.32 to 3.2)
route -A inet6
Kernel IPv6 routing table
Destination Next Hop Flag Met Ref Use
If
fe80::/64 :: U 256 0 0
eth1
fe80::/64 :: U 256 0 0
eth3
fe80::/64 :: U 256 0 0
eth2
fe80::/64 :: U 256 0 0
eth0
::/0 :: !n -1 1 1
lo
::1/128 :: Un 0 1 6
lo
fe80::7ae7:d1ff:fe94:915a/128 :: Un 0 1 0
lo
fe80::7ae7:d1ff:fe94:915c/128 :: Un 0 1 0
lo
fe80::7ae7:d1ff:fe94:915e/128 :: Un 0 1 0
lo
fe80::7ae7:d1ff:fe94:9160/128 :: Un 0 1 0
lo
ff00::/8 :: U 256 0 0
eth1
ff00::/8 :: U 256 0 0
eth3
ff00::/8 :: U 256 0 0
eth2
ff00::/8 :: U 256 0 0
eth0
::/0 :: !n -1 1 1
lo

Regards,
Nitin Yadav

On Wed, Apr 25, 2012 at 10:04 PM, Mathieu Trudel-Lapierre <
<email address hidden>> wrote:

> Do you also have messages like "ndisc_router_discovery() failed to add
> default route" in /var/log/syslog or /var/log/dmesg?
>
> Please run the command 'apport-collect 977725' to add additional
> debugging information to this bug report.
>
> Thanks in advance!
>
> ** Changed in: network-manager (Ubuntu)
> Status: New => Incomplete
>
> ** Changed in: network-manager (Ubuntu)
> Importance: Undecided => Low
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/977725
>
> Title:
> duplicate entries in Kernel IPv6 routing table
>
> Status in “network-manager” package in Ubuntu:
> Incomplete
>
> Bug description:
> Hi,
>
> i am getting duplicate default route...

[nitin yadav (nitinyadav91)]

hi Mathieu,
thanks for replying !!!
but i did no get messages like "ndisc_router_discovery() failed in all log files.
This is the kernel problem because i execute same command in SUSE , i am not getting duplicate entries .

SUSE system:
route -A inet6
Kernel IPv6 routing table
Destination Next Hop Flags Metric Ref Use Iface
fe80::/64 :: U 256 0 0 eth0
fe80::/64 :: U 256 0 0 eth1
::1/128 :: U 0 125 1 lo
fe80::21f:29ff:fee5:5b40/128 :: U 0 0 1 lo
fe80::21f:29ff:fee5:5b42/128 :: U 0 0 1 lo
ff00::/8 :: U 256 0 0 eth0
ff00::/8 :: U 256 0 0 eth1

Linux system (in all version 2.6.32 to 3.2)
route -A inet6

Kernel IPv6 routing table
Destination Next Hop Flag Met Ref Use If
fe80::/64 :: U 256 0 0 eth1
fe80::/64 :: U 256 0 0 eth3
fe80::/64 :: U 256 0 0 eth2
fe80::/64 :: U 256 0 0 eth0
::/0 :: !n -1 1 1 lo
::1/128 :: Un 0 1 6 lo
fe80::7ae7:d1ff:fe94:915a/128 :: Un 0 1 0 lo
fe80::7ae7:d1ff:fe94:915c/128 :: Un 0 1 0 lo
fe80::7ae7:d1ff:fe94:915e/128 :: Un 0 1 0 lo
fe80::7ae7:d1ff:fe94:9160/128 :: Un 0 1 0 lo
ff00::/8 :: U 256 0 0 eth1
ff00::/8 :: U 256 0 0 eth3
ff00::/8 :: U 256 0 0 eth2
ff00::/8 :: U 256 0 0 eth0
::/0 :: !n -1 1 1 lo

[Launchpad Janitor (janitor)]

[Expired for network-manager (Ubuntu) because there has been no activity for 60 days.]