> -----Original Message-----
> From: Chris Berry [mailto:[EMAIL PROTECTED]
> I'm afraid I don't see how that:
>
> internet --> Firewall --> Lan
>
> internet --> Firewall --> DMZ
Actually, it's
internet <-- Firewall <-- LAN
internet --> Firewall --> DMZ
> would be any more secure than this:
>
> internet --> Outer Firewall --> DMZ --> Inner Firewall --> LAN
internet <--> Outer Firewall <--> DMZ <-- Inner Firewall <-- LAN
(no more secure, and slightly inefficient
> or this:
>
> internet --> Firewall --> LAN
> --> DMZ
internet <--> Firewall <-- LAN
|
V
DMZ
which uses a single (3-legged) firewall box and doesn't force
traffic from LAN to DMZ to transit the Internet (or vice versa)
as the alternatives above do.
(The arrowheads, as I've indicated them above, reflect directions
of allowed session initiation.)
David Gillett
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