RE: Default IP (again)

  • From: "Gary Anderson" <gary.anderson@xxxxxxxxxxxxx>
  • To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
  • Date: Wed, 19 Dec 2001 15:04:12 +0100

Hi Al,

This may sound dumb but does the internal NIC have a default gateway
specified in the set up?  It shouldn't.

Why do you need more than one address on the external NIC?

Gary

-----Original Message-----
From: Blake Al [mailto:al.blake@xxxxxxxxxxxxxxx]
Sent: Tuesday, December 18, 2001 23:10
To: [ISAserver.org Discussion List]
Subject: [isalist] RE: Default IP (again)


http://www.ISAserver.org


So from the resounding silence it take it that:

1. No one else has ever had this problem?
2. No one knows how to attack this problem?
3. Everyone is on holiday ? ;)

...am I really going to have to reinstall ISA to get to use the correct Ip
as the default?

-----Original Message-----
From: Blake Al
Sent: Friday, 14 December 2001 11:37 AM
To: [ISAserver.org Discussion List]
Subject: [isalist] RE: Default IP (again)


http://www.ISAserver.org


I should add that in the Advanced tab the IPs are listed in the order:

203.110.145.178 255.255.255.240

203.110.145.179 255.255.255.240
203.110.145.180 255.255.255.240
203.110.145.181 255.255.255.240

[Blake Al]  -----Original Message-----
From: Blake Al
Sent: Friday, 14 December 2001 11:34 AM
To: [ISAserver.org Discussion List]
Subject: [isalist] Default IP (again)



http://www.ISAserver.org


OK,
I have done some checking and established that my ISA server is using the
WRONG IP for outgoing traffic defined by protocol rules.
My external Nic is configured:

MAIN tab:
203.110.145.178 255.255.255.240

ADVANCED tab:
203.110.145.179 255.255.255.240
203.110.145.180 255.255.255.240
203.110.145.181 255.255.255.240

When I check the outgoing traffic on my boundary router all the packets that
come from protocol rules (where I dont have the opportunity to specify an
outgoing IP to use) come from 203.110.145.179. So it seems as though ISA
regards this as the default?

Questions:
1. Why doesnt ISA regard the IP on the MAIN tab of the inteface config as
the default?
2. How can I make it use the correct IP as the default?
------------------------------------------------------------------------
Al Blake
ICT Manager, Canberra Girls Grammar School
Melbourne Avenue, Deakin, ACT 2600, Australia.
Switch: +61 2 62026400
Direct: +61 2 62026448
Mobile: +61 408 296 381
Fax: +61 2 62731505
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