RE: Cant bind to dial up interface
- From: "Richard Pettigrew" <Richard@xxxxxxxxxxx>
- To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
- Date: Thu, 23 May 2002 10:26:30 +0100
On your Internal LAN Adapter you do not need to specify a default gateway.
The Firewall Client should never be installed on the ISA server it'self (I read
that somewhere in this list previously)
If you set your Exchange Server Connector to route all mail to a smart host,
the process of resolving the delivery route would force a dialup since traffic
destined for outside your network will cause the autodial to be initiated.
To allow this to happen ISA needs to know what traffic to allow to pass through
and thus what will initiate a dialout.
You might try creating a new dialup connection and configuring ISA to use that
instead. Then restart the ISA Services.
The fact that your dialup connect is receiving a dynamic ip address probably
has a lot to do the problems your experiencing.
To trigger SMTP mail delivery in you will probably need to create a batch file
or something that will try to access a resource out on the internet, thus
triggering the dialup. once connected smtp traffic would come in.
I'm not any real expert on these matters, just drawing on personal experience.
hope you get it working.
-----Original Message-----
From: Ash Ridley [mailto:ash.ridley@xxxxxxxxxxxxxx]
Sent: 22 May 2002 21:45
To: [ISAserver.org Discussion List]
Subject: [isalist] RE: Cant bind to dial up interface
http://www.ISAserver.org
Richard,
Thanks for the reply an apologies for mailing you directly (for some reason I
get a rejected message from the list manager).
I have removed the default route in RRAS but I still get the "Cannot bind dial
up filters" error even though the dial up connection has been put back in (and
has been tested - any thoughts?
One other question, how can sinply setting an SMTP rule allow ISA to auto dial
for exchange, I cant configure the server as a secureNAT client as the external
address is dynamic and therefore cant be used as a default gateway for the LAN
adapter) do I have to install the Firewall client on the server to get this to
work?
Thanks
Ash
-----Original Message-----
From: Richard Pettigrew [mailto:Richard@xxxxxxxxxxx]
Sent: 21 May 2002 18:42
To: [ISAserver.org Discussion List]
Subject: [isalist] RE: Cant bind to dial up interface
http://www.ISAserver.org
Don't use RRAS to route out internet let ISA do it.
PS. Dial-up access with ISA (are using a modem or ISDN adapter?) works best
when your ISP is nice enough to allocate you a static IP address for your
dialup account (Demon Internet)
I have sucessfully implemented the following scenario:
1 ISA server with 56K modem attached.
create a normal Dialup entry in Network & Dialup connections.
Configure ISA to use it.
ISA is probably looking to bind to the dialup entry that you have deleted. you
should recreate it with the same name and then start the services.
After this modify the Routing Rule in the Network Configuration section to
allow automatic dialout.
To get exchange to initiate the dialout set up a protocol rule and filter to
allow SMTP traffic out, that should initiate the dialup connection when it gets
ip traffic destined for the external network.
Also create and allow rule for SMTP traffic in to your Exchange server. If
exchange is on the same machine then leave the SMTP Vitual Server ip address to
"All Unallocated" this way when you are connected to the internet, Exchange can
receive email on port 25 at the dialup interface.
Since you cannot bind it to an ip address permenantly because of the nature of
dialup networking.!
Hope this give you some pointers. good luck :)
-----Original Message-----
From: Ash Ridley [ mailto:ash.ridley@xxxxxxxxxxxxxx]
Sent: 21 May 2002 18:27
To: [ISAserver.org Discussion List]
Subject: [isalist] Cant bind to dial up interface
http://www.ISAserver.org
Hi all,
I have a problem with ISA server and its refusal to let go of a dial up
When it was initially installed it was simply a web proxy so it was
configured to use a dial up connection. Since we have added an SMTP
server (exchange) to the box we now need to use RRAS and a default route
to get the mail delivered. Unfortunately the 2 connections (ISA Dial up
and RRAS static route) seem to conflict with one another (even though
the are essentially the same connection) so I decided to remove the dial
up connection from ISA and just have it initiate the default route
connection as well.
I have removed the dial up selection from both the default route and the
routing config in ISA but it wont let me delete the dial up connection
since it says it is still active. However whenever I restart the
services both the proxy and firewall service say the cannot bind to the
dial up interface.
Any ideas on how to fix this?
Thanks
Ash
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