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Change internal IP address - 29.Oct.2008 3:59:57 AM

teejayuu

Posts: 34
Joined: 7.May2008
Status: offline

Hi

I have ISA server 2006 set up and running as an Edge firewall and have a number of web publishing and acccess rules. ISA also deals with VPN clients, a site to site VPN and Exchange messaging.

When I set it up it was given 10.1.1.2 as a class 3 IP address. I would now like to change this to 10.1.1.1. What would be the impact of this? and are there any pitfalls that I would need to be aware of?

Thanks
Tony

Post #: 1

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RE: Change internal IP address - 29.Oct.2008 8:00:34 AM

tshinder

Posts: 47663
Joined: 10.Jan.2001
From: Texas
Status: offline

Hi Tony,

Make sure your internal DNS is able to resolve the IP address to the name of the firewall.

That also includes your WPAD entries.

HTH,
Tom

_____________________________

Thomas W Shinder, M.D.
Sr. Consultant/Technical Writer
Prowess Consulting http://www.prowessconsulting.com/
Blog: http://blogs.isaserver.org/shinder/

GET THE NEW ISA 2006 Book!: http://tinyurl.com/2gpoo8

(in reply to teejayuu)

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RE: Change internal IP address - 29.Oct.2008 8:51:06 AM

teejayuu

Posts: 34
Joined: 7.May2008
Status: offline

Hi Tom

Thanks for the quick response. My main concern is whether it would affect the site to site VPN. For instance would I need to restart the ISA service?

quote:

That also includes your WPAD entries

At present we do not use WPAD so it would not be an issue - that will come later when I have more time.

(in reply to tshinder)

Post #: 3

RE: Change internal IP address - 4.Nov.2008 7:15:09 AM

tshinder

Posts: 47663
Joined: 10.Jan.2001
From: Texas
Status: offline

You might need to restart the firewall, but not sure. You probably will be need to restart the Firewall service because of the outbound Web Proxy listener.

HTH,
Tom

_____________________________

Thomas W Shinder, M.D.
Sr. Consultant/Technical Writer
Prowess Consulting http://www.prowessconsulting.com/
Blog: http://blogs.isaserver.org/shinder/

GET THE NEW ISA 2006 Book!: http://tinyurl.com/2gpoo8

(in reply to teejayuu)

Post #: 4