tcpdump mailing list archives

Re: some help please


From: gharris <gharris () sonic net>
Date: Mon, 18 Nov 2002 08:33:09 -0800 (PST)

I have some delays from one site regarding internet access. From running
ethereal I have discovered that those delays are caused by Unreassembled
packets.

No.  When Ethereal reports an "Unreassembled Packet", that just means that
it has seen something it *thinks* is a higher-level packet that requires
more than one link-layer frame, but that Ethereal's option controlling
whether to reassemble those frames *inside Ethereal* has not been turned
on.

It does *not* mean that the packet *itself* has an error.

All those packets (TCP Protocol [PSH, ACK]) are in downstream
Len=6 and on upstream Len=4. Also ethereal calls it : "Unreassembled
Packet: SKINNY".

That might just mean that the packet happenes to have been set to or from
the port number for Cisco's Skinny Client Control Protocol, and looks as
if it's more than one TCP segment in length.  It's probably *not* SCCP
traffic, which means Ethereal's processing of it can give bogus results.


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