Re: rtentry and rtrequest

Yar Tikhiy wrote:
----
Disconnecting: Corrupted MAC on input.
----

That looks like data corruption happening when TCP segments and/or
IP packets become relatively large, i.e., approach or reach the mtu
limit.

Indeed that would appear to be the case.


I'm sure it's something to do with how I'm doing the output. Does this
look sane?

Well, there's certain space for improvement,

Aww it's not _that_ bad is it. :) hehe

but now I fail to find a
bug that would result in corrupted data.

Phew /me wipes brow... so I'm not _totally_ useless then. :)

Would you mind testing the link with ping using packets of size
equal to, just below, and slightly above the mtu, and with different
data patterns? See -s and -p options to ping. You can observe the
patterns in echo replies with tcpdump -X. The data patterns in
echo requests and echo replies should be exactly the same. If they
aren't, the character of corruption can hint you at the bug.

I've done a pretty preliminary tcpdump'ing and the packets seem ok above and below the MTU via the bpf taps. I wonder if it's a bug in the SP side... then again I could be completely off base and it's all my dodgy codes fault. :)

I'll poke around with tcpdump and ping a bit more.

Many thanks again Yar,

Alan.
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