Hi, Can you queue for active older -stables up to 3.18:
commit 3cdaa5be9e81 "ipv4: Don't increase PMTU with Datagram Too Big message" commit cb6ccf09d6b9 "route: Use ipv4_mtu instead of raw rt_pmtu" commit 3cdaa5be9e81 made it to 3.19.y and was later fixed additionally with conversion to ipv4_mtu() in the second referenced commit. However, these patches together will fix another case that is not so obvious: the case if the original route had MTU set on it. Previously it was ignored but using ipv4_mtu as the first check will also check RTAX_MTU on metrics. This fixes the nasty issue that PMTU can trigger to send larger packets then what was explicitly configured via a static route mtu. Thanks, Timo -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html