subject:"\[PATCH net\] ip6_gre\: update mtu properly in ip6gre_err"

Re: [PATCH net] ip6_gre: update mtu properly in ip6gre_err

2017-09-07 Thread David Miller

From: Xin Long Date: Tue, 5 Sep 2017 17:26:33 +0800 > Now when probessing ICMPV6_PKT_TOOBIG, ip6gre_err only subtracts the > offset of gre header from mtu info. The expected mtu of gre device > should also subtract gre header. Otherwise, the next packets still > can't be

[PATCH net] ip6_gre: update mtu properly in ip6gre_err

2017-09-05 Thread Xin Long

Now when probessing ICMPV6_PKT_TOOBIG, ip6gre_err only subtracts the offset of gre header from mtu info. The expected mtu of gre device should also subtract gre header. Otherwise, the next packets still can't be sent out. Jianlin found this issue when using the topo: