Cisco PIX fixup protocol command

[S.Rohit <s.rohit () usa net>]

hi everyone....

   might sound like a very stupid question to ask, but i am looking for info
on wat is the use of fixup protocol commands on the Cisco PIX device. wat is
the exact usage and significance of this commands? and wat are the security
implications of this command? i know that some fixup's like say fixup protocol
smtp are good cos of the way they restrict the SMTP command set but how about
the general syntax [no] fixup protocol [service] [port]? what is this used for
and wat are the security implications for this?

   i am asking this because i'm seeing a recommendation in some PIX hardening
guide to disable fixups or they flag fixups as a security issue? y is tat? 

rohit



---------------------------------------------------------------------------
Free trial: Astaro Security Linux -- firewall with Spam/Virus Protection

Protect your network with the comprehensive security solution that
integrates six applications for ease of use and lower TCO.

Firewall - Virus protection - Spam protection - URL blocking - VPN
- Wireless security.

Download 30-day evaluation at:
http://www.astaro.com/php/contact/securityfocus.php
----------------------------------------------------------------------------