[Courses] Re: Firewall theory -- ICMP

[Katie Bechtold]

On Tue, Mar 19, 2002 at 10:37:26AM -0800, No Body wrote:
> Can someone illustrate for me the difference between
> network layer and transport layer protocols? (I'm a
> very visual person, so pictures are my friends:)

I anticipated that people would have some questions about network
layers when I posted the web version of this "lesson," so I posted
some links to web pages that explain the OSI network reference
model.

Just a friendly reminder that I've been updating the web version 
of this security course regularly, and I try to include extra links
where it's appropriate.

It shouldn't be difficult to get to the Security course web page,
but for the sake of convenience, here it is:
	http://www.linuxchix.org/content/courses/security/icmp

-- 
Katie Bechtold
http://www.katie-and-rob.org/katie/