Re: Crafted SYN Packets...

[Paul Schmehl <pauls () utdallas edu>]

--On Tuesday, November 13, 2007 17:38:39 -0500 Simon Smith 
<simon () snosoft com> wrote:

> Kelly,
>       SYN packets and ports do not correlate.

Huh?  You'd better explain what you mean here a little further.

> And yes, SYN is TCP.

You mean SYN is TCP *only*, not UDP.

> You should
> read up on TCP/IP etc so that you understand protocols before posting to
> mailing lists.
>
> Kelly Robinson wrote:
> > Looking at some suspicious behaviour in our logs...
> >
> > If someone sends a packet with the SYN bit set to a host, typically what
> > is the client's source port? Or is that crafted too?

It can be but doesn't have to be.

-- 
Paul Schmehl (pauls () utdallas edu)
Senior Information Security Analyst
The University of Texas at Dallas
http://www.utdallas.edu/ir/security/

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