Here's a good starting point:
Cisco Router basic Firewall
How to set up a Cisco router with standard IOS as a basic Firewall.
http://itresources.brainbuzz.com/tutorials/tutorial.asp?t=S4TU314&tn=Cisco+R
outer+basic+Firewall&pi=S1C47&pn=Routers
-----Original Message-----
From: Dave Vogler [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, May 01, 2001 8:41 AM
To: firewall discussion list
Subject: Cisco access list technique
Hi all,
I'm a bit of a newbie to my Cisco router, but I'm attempting to set up
an access list to firewall my LAN from the internet.
Is there a preferred order for my permit and deny statements? I've
heard that its best to put all your permit statements first, then your
denys.... will this affect throughput speed? Are packets substantially
slowed down because the router has to examine every one?
And if an access list implicitly denies all that are not permitted, why
even bother with deny statements?
Thanks in advance,
Dave Vogler
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