RE: External Network Logic
- From: "Thomas W Shinder" <tshinder@xxxxxxxxxxx>
- To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
- Date: Wed, 7 Dec 2005 17:01:38 -0600
The default External Network is defined as all addresses that defined by
any other ISA firewall Network. So, there is still an external network,
you just don't have any access to it, since you've created ISA firewall
Networks for both the NIC (one for the default Internal Network and one
for the ISA firewall Network representing the perimeter network NIC).
You can use this in a number of scenarios, like turning the DMZ between
the BE and FE ISA firewall into an ISA firewall Network and creating a
route Network Rule between that and the default Internal Network, but
still NAT'ing to the Internet. Pretty slick, eh?
Thomas W Shinder, M.D.
Site: www.isaserver.org
Blog: http://spaces.msn.com/members/drisa/
Book: http://tinyurl.com/3xqb7
MVP -- ISA Firewalls
**Who is John Galt?**
> -----Original Message-----
> From: Thor (Hammer of God) [mailto:thor@xxxxxxxxxxxxxxx]
> Sent: Wednesday, December 07, 2005 4:57 PM
> To: [ISAserver.org Discussion List]
> Subject: [isalist] External Network Logic
>
> http://www.ISAserver.org
>
> So, you've got ISA with 2 NIC's. You define the Internal
> range on one NIC,
> leaving the other NIC as "External." You then add a
> perimeter network, and
> give it the IP range of what used to be the "External" NIC.
> What happens to
> the concept of the External network since you now have a
> trusted Internal
> network and a less trusted "Perimeter" network, but no real
> "External"
> network anymore. Will it just be an "empty" network set
> sitting there all
> alone in the cold, cold ground?
>
> t
>
>
> ------------------------------------------------------
> List Archives: http://www.webelists.com/cgi/lyris.pl?enter=isalist
> ISA Server Newsletter: http://www.isaserver.org/pages/newsletter.asp
> ISA Server FAQ: http://www.isaserver.org/pages/larticle.asp?type=FAQ
> ------------------------------------------------------
> Visit TechGenix.com for more information about our other sites:
> http://www.techgenix.com
> ------------------------------------------------------
> You are currently subscribed to this ISAserver.org Discussion
> List as: tshinder@xxxxxxxxxxxxxxxxxx
> To unsubscribe visit
> http://www.webelists.com/cgi/lyris.pl?enter=isalist
> Report abuse to listadmin@xxxxxxxxxxxxx
>
>
Other related posts:
