Hi Linus,
On Tue, 12 Feb 2019 16:39:08 +0100
Linus Walleij <linus.walleij@xxxxxxxxxx> wrote:
> Tunnel encapsulation fixes:
>
> 094-v4.12-0001-ip6_tunnel-Fix-missing-tunnel-encapsulation-limit-op.patch
> 094-v4.12-0002-ipv6-Need-to-export-ipv6_push_frag_opts-for-tunnelin.patch
> Upstream commits
> 89a23c8b528bd2c89f3981573d6cd7d23840c8a6
> "ip6_tunnel: Fix missing tunnel encapsulation limit option"
> 5b8481fa42ac58484d633b558579e302aead64c1
> "ipv6: Need to export ipv6_push_frag_opts for tunneling now."
These are needed to get the IPv6 Tunnel Encapsulation Limit option (RFC
2473) actually sent in packets. As a side effect, FoU and GUE IPv6
tunnels wouldn't work anymore unless you include...
> Which then seems to be further fixed in
> commit d4d576f5ab7edcb757bb33e6a5600666a0b1232d
> "ip6_tunnel: Fix encapsulation layout"
this one. But, for those tunnels to work, commit 84dad55951b0 ("udp6:
fix encap return code for resubmitting") is also needed.
I think making sure all those four commits are there would be the safest
option.
--
Stefano
