[OpenWrt-Tickets] [OpenWrt] #683: IPv6 forwarding broken in 2.4.30

[OpenWrt]

#683: IPv6 forwarding broken in 2.4.30
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 Reporter:  adi at drcomp.erfurt.thur.de  |        Owner:  florian
     Type:  defect                     |       Status:  closed 
 Priority:  normal                     |    Milestone:  0.9/rc6
Component:  kernel                     |   Resolution:  wontfix
 Keywords:                             |  
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Comment (by adi at drcomp.erfurt.thur.de):

 News update on this issue: AYIYA tunnels don't work anymore, at least not
 my tunnels ;)

 Though I now have the reason why packets larger than 195+8 bytes are not
 working: the IPv4 address of the remote tunnel endpoint gets screwed.

 I've attached two pcap files to this ticket, one (good.pcap) shows the
 right tunnel endpoint 85.14.220.160 for packets less and up to 194(+8)
 bytes, the other (bad.pcap) shows a totally wrong destination address in
 the IPv4 header.

 Even worse, this wrong address changes from time to time (let's say every
 two minutes). Obviously, not reaching the tunnel endpoint breaks the
 encapsulated traffic. ;)

 Note that this only holds true for traffic being sent from the inside
 network via the router to the outside. Everything is fine with ping6ing
 the router itself or with large packets from the outside to the inside.

 For now, I don't have any idea where things go wrong.

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Ticket URL: <https://dev.openwrt.org/ticket/683#comment:13>
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