[OpenWrt-Tickets] [OpenWrt] #3706: IPv6 default "unreachable" route

[OpenWrt]

#3706: IPv6 default "unreachable" route
--------------------------------------+-------------------------------------
 Reporter:  romain.riviere at gmail.com  |       Owner:  developers
     Type:  defect                    |      Status:  new       
 Priority:  normal                    |   Milestone:            
Component:  base system               |    Keywords:            
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 There seems to be a very persistent IPv6 route in OpenWRT :

 {{{
 unreachable default dev lo  proto none  metric -1  error -128
 }}}

 For reasons unknown to me, this route does not get replaced by a
 legitimate route when one is added. For example, this is my current
 routing table from a WRT54GL running 7.09 and having received a RA from
 its neighbour router :

 {{{
 default dev eth0.0  proto kernel  metric 256  mtu 1500 advmss 1440
 default via fe80::200:ff:fe00:0 dev br-lan  proto kernel  metric 1024
 expires 1671sec mtu 1500 advmss 1440
 unreachable default dev lo  proto none  metric -1  error -128
 }}}

 Similar hebaviour can be observed on another WRT54GL running 7.09 on which
 I have an ip-up.d script that reads

 {{{
 #!/bin/sh
 route -A inet6 add default dev $1
 }}}

 After a normal boot, I get '''BOTH''' the default route via ppp0 '''AND'''
 the dreaded unreachable route via lo.

 Something goes wrong somewhere but I can't put my finger on it.

-- 
Ticket URL: <https://dev.openwrt.org/cgi-bin/trac.fcgi/ticket/3706>
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