I have recently upgraded to 6.1 (from 6.1 beta something ) and I experienced the very same behaviour like earlier with IPv6 during earlier upgrades. I dare not to say from what version but for sure it existed during the 5.x versions.
The use case is the following:
- I use he.net ipv6 tunnel that is set up correctly and works perfect
- after the upgrade the sit interface shows outgoing traffic, but no incoming. The remote gw is not reachable. Disabling/enabling the interface does not help. The reboot does not help either.
Code: Select all
/interface 6to4 add comment="Hurricane Electric IPv6 Tunnel Broker" disabled=no local-address=126.96.36.199 mtu=1280 name=sit1 remote-address=188.8.131.52 /ipv6 route add comment="" disabled=no distance=1 dst-address=2000::/3 gateway=2001:470:27:5b6::1 scope=30 target-scope=10 /ipv6 address add address=2001:470:27:5b6::2/64 advertise=yes disabled=no eui-64=no interface=sit1
- after several hours I make a reboot and suddenly the ipv6 traffic flows perfect like before the upgrade.
- This happens after every upgrade.
I do not run some core business on that he.net ipv6 tunnel, but i can imagine if somebody else does this is a critical issue.
Also it might happen with other sit interfaces too.
Could you please investigate.