RE: Firewall bypassing tool

["Bojan Zdrnja" <Bojan.Zdrnja () FER hr>]

> -----Original Message-----
> From: d_fence [mailto:d_fence () gmx net] 
> Sent: 1. studeni 2002 12:29
> To: vuln-dev () securityfocus com
> Subject: Firewall bypassing tool
>
>
> Hi all, 
> I read sometime ago about bypassing the firewall filters which block
incoming 
> (initializing) SYN packets, by sending for example a SYN-FIN packet
and 
> establishing that way a connection to a blocked port.. Now  I`m trying
to  
> check wether my firewall would let through such packets, and so I`m
searching 
> for a tool which would does this.. Do you know any such tools?

Well, for any packet crafting I'd advise you to go to hping's homepage:

http://www.hping.org/

And for the beginning read it's documentation.

Best regards,

Bojan Zdrnja