RE: Additional Block of IP's for external interface

  • From: "cismic" <cismic@xxxxxxx>
  • To: "'[ISAserver.org Discussion List]'" <isalist@xxxxxxxxxxxxx>
  • Date: Fri, 17 Oct 2003 11:29:27 -0700

Hi Chad,

I have those blocks of IP Address too!  However,  I've only had to use 2
of them.  1 for all the sites that I'm hosting and working on and I use
1 for mail.  I've not had a need for those since I use host headers for
the web sites.  I think it also makes working with ISA easier.  I'm sure
you could possibly use all those address but in my opinion is not
necessary.  Look over the articles over at http://www.isaserver.org and
search for host headers.

Thank you,

Joseph

-----Original Message-----
From: Chad Roush [mailto:croush@xxxxxxxxxxx] 
Sent: Friday, October 17, 2003 8:33 AM
To: [ISAserver.org Discussion List]
Subject: [isalist] Additional Block of IP's for external interface


http://www.ISAserver.org


Our ISP initially provided us with 5 public IP addresses that we have
assigned to our external interface on our ISA. 
We have requested additional IP's as our publishing needs have grown.
Our ISP has allotted us an additional range of IP's with a different
network ID,

and is telling me that I need to add them to our NAT table as they have
configured the router to forward them to one of our orignal IP's.  By
doing this I get to use all 32 of the IP's they are giving me, but I can
not assign them to the external interface.  How would I go about
configuring this?

The other option would require my ISP to configure an additional default
gateway, and then I can assign them to the external interface.  

Can someone give me some advice on how to handle this?  Would I need to
add an additional interface to handle the range of addresses with the
new gateway?  


Thanks, 

Chad Roush 
croush@xxxxxxxxxxx 

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