Firewall Wizards: Re: Cisco 2621 opinions

[Carson Gaspar <carson () taltos org>]

--On Tuesday, July 16, 2002 1:29 PM -0400 Brian Ford <brford () cisco com> 
wrote:
> The
> IOS Firewall is completely Stateful for TCP; builds state for UDP
> connections; offers all the IOS ACLs (Standard, Extended, Reflexive,
> Dynamic and Time of Day); as well as ICMP filtering.  You have extensive
> IOS Syslog capabilities.  You have access to all the IOS QOS mechanisms.
Please define "completely stateful". Does it do sequence number 
verification? If so, does it use a fixed window or spy on the TCP window 
negotiations? Does it handle window scaling?
"extensive IOS syslog capabilities" - that would be to send unencrypted, 
unsigned traffic via lossy UDP, right? Or has something been added that I 
don't know about? I know the PIX can do TCP, but last I checked IOS 
couldn't, and neither encrypts or signs. (And please don't mention IPSEC 
tunnels ;-)
--
Carson

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