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authorChris Luke <chrisy@flirble.org>2016-06-14 16:24:47 -0400
committerDave Barach <openvpp@barachs.net>2016-06-28 23:35:13 +0000
commit816f3e1b879b43802ea8035d6a3f1cbf5db76825 (patch)
tree84365630b1fa8faffc1c1ecd3e1a290d3afbbf50 /vlib/Makefile.am
parent154d445f7f8f1553d9bb00d1be42bf1b06eda9f1 (diff)
VPP-48 Fixes for ip4/6 ttl checks and icmp responses
This patch fixes a few minor things: - Previously ip[46]_input was rejecting packets with an input TTL (hop limit) of one; this was not correct behavior. Packets that are bound for this device can validly have a TTL of one. - ip[46]_forward was not generating an ICMP TTL expired message if the act of decrementing the TTL caused it to become zero. This was not previously an issue because ip[46]_input was filtering packets where this could happen. - udp_local was not generating ICMP Port Unreachable messages if UDP packets arrived for a port that is not listened to. This is typically the signal that "traceroute" uses to terminate its search. Together these fixes mean that traceroute probes transiting a VPP node, or are targetted toward a VPP node, now work as expected. Change-Id: I84bb940883f7a18435f29f4518fb0445b989a3e3 Signed-off-by: Chris Luke <chrisy@flirble.org>
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