Re: ISA Server is a DHCP Client, can't renew its lease
- From: "Joel Mansford" <Joel.Mansford@xxxxxxxxxxxxxxx>
- To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
- Date: Wed, 6 Mar 2002 14:27:44 -0000
I tried this, unfortunately my ISP only issue 4 hour licences and the
task scheduler will only recur daily, besides restarting the ISA
Services every 4 hours seems too frequent to me!
I originally installed from the MSDN Backoffice CDs, which gives ISA
Standard edition. Like I said previously the service pack wouldn't
install, so I installed MSDN ISA Enterprise over the top and now the SP
installs and the DHCP problem seems to have gone away!
I hope it stays this way!
Joel.
-----Original Message-----
From: Mark Strangways [mailto:strangconst@xxxxxxxxxx]
Sent: 04 March 2002 18:48
To: [ISAserver.org Discussion List]
Subject: [isalist] Re: ISA Server is a DHCP Client, can't renew its
lease
http://www.ISAserver.org
We have a handy little script that I run in task scheduler. It basically
stops ISA's components, drops old IP then grabs new one from ISP. I too
had to do this. Originally the script didn't do a release of the old IP,
but I found that if I didn't release the IP it would not extend the
lease. It would then expire and leave me with a problem.
So if you would like this script please e-mail me directly, and I will
send it as an attachment. It's a VBS extension, so if you have a filter
enabled I will have to zip it.
Regards.
Mark
PS. I believe Jim gets the credit for writing the script !!!
----- Original Message -----
From: Joel Mansford <mailto:Joel.Mansford@xxxxxxxxxxxxxxx>
To: [ISAserver.org <mailto:isalist@xxxxxxxxxxxxx> Discussion List]
Sent: Monday, March 04, 2002 12:59 PM
Subject: [isalist] ISA Server is a DHCP Client, can't renew its lease
http://www.ISAserver.org
I am running dual-homed ISA Server (standard) which one NIC on a fixed
private IP, and the second NIC set to DHCP attached to a cable modem.
My ISP issue 4 hour leases.
My problem is this, during bootup the machine requests and accepts a
DHCP offer without problem, however once the machine has fully booted it
is unable to renew the lease. Thus, the server needs booting every 4
hours.
I have looked at the traffic on the Public NIC using network monitor,
and can see the DHCP Offer packets, I believe ISA Server is stopping
them coming through. The DHCP Client packet filter is ENABLED.
I have tried applying ISA SP1, but that errors with "ISA Server not
installed" !
Any suggestions which don't involve rebuilding, greatly appreciated.
Cheers,
Joel.
P.S. Due to a funny during installation, the system drive is on F:.
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