From: Florian Westphal <f...@strlen.de> Date: Fri, 22 May 2015 16:32:49 +0200
> output path tests: > > if (skb->len > mtu) ip_fragment() > > This breaks connectivity in one corner case: > If the skb was reassembled, but has the DF bit set and .. > .. its reassembled size is <= outdev mtu .. > .. we will forward a DF packet larger than what the sender > transmitted on wire. > > If a router later in the path can't forward this packet, it will send an > icmp error in response to an mtu that the original sender never exceeded. > > This changes ipv4 defrag/output path to > > a) force refragmentation for DF reassembled skbs and > b) set DF bit on all fragments when refragmenting if it was set on original > frags. ... Series applied, thanks Florian. -- 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
