diff options
| author |   Chris Luke <chrisy@flirble.org> | 2016-06-14 16:24:47 -0400 |
|---|---|---|
| committer |   Dave Barach <openvpp@barachs.net> | 2016-06-28 23:35:13 +0000 |
| commit | 816f3e1b879b43802ea8035d6a3f1cbf5db76825 (patch) | |
| tree | 84365630b1fa8faffc1c1ecd3e1a290d3afbbf50 /vlib | |
| parent | 154d445f7f8f1553d9bb00d1be42bf1b06eda9f1 (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>
Diffstat (limited to 'vlib')
0 files changed, 0 insertions, 0 deletions