RE: ISA and ISDN backup connection
- From: "Friese, Casey" <cfriese@xxxxxxxxxxxxx>
- To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
- Date: Thu, 13 Feb 2003 12:10:58 -0500
Now completely understand what you've mentioned John, I have revised my plan
and have taken away the ISDN device that is connected to the Serial port of the
corporate HQ's ISA.
I'm now going to be calling an ISDN card in our Cisco router from the remote
office.
I have disabled the tunnel and set everything up for the ISDN connection to
connect to the cisco router at the HQ. I connect and can communicate in both
directions over the ISDN lines.
Now, you may give me the same answer but I'll ask again since the scenario has
changed.
When the VPN tunnel is detected as unreachable is there a way to have the ISDN
connection automatically fired off?
With a cisco device having an ISDN backup connection, I know it is possible to
do this through route costing. I'm trying to find a way to mimic that or to
replace that with perhaps a packet loss percentage.
-----Original Message-----
From: Friese, Casey
Sent: Thursday, February 13, 2003 10:57 AM
To: [ISAserver.org Discussion List]
Subject: [isalist] RE: ISA and ISDN backup connection
http://www.ISAserver.org
gotcha
-----Original Message-----
From: John Tolmachoff [mailto:isalist@xxxxxxxxxxxx]
Sent: Thursday, February 13, 2003 10:50 AM
To: [ISAserver.org Discussion List]
Subject: [isalist] RE: ISA and ISDN backup connection
http://www.ISAserver.org
Theoretically in RRAS, yes. But ISA is controlling the external interface,
not RRAS.
John Tolmachoff MCSE, CSSA
IT Manager, Network Engineer
RelianceSoft, Inc.
Fullerton, CA 92835
www.reliancesoft.com
> -----Original Message-----
> From: Friese, Casey [mailto:cfriese@xxxxxxxxxxxxx]
> Sent: Thursday, February 13, 2003 7:40 AM
> To: [ISAserver.org Discussion List]
> Subject: [isalist] RE: ISA and ISDN backup connection
>
> http://www.ISAserver.org
>
>
> hmm, logically, if the one external connection goes down and the backup
> connection is fired off, there is still only one external connection..no?
>
> -----Original Message-----
> From: John Tolmachoff [mailto:isalist@xxxxxxxxxxxx]
> Sent: Thursday, February 13, 2003 10:15 AM
> To: [ISAserver.org Discussion List]
> Subject: [isalist] RE: ISA and ISDN backup connection
>
>
> http://www.ISAserver.org
>
>
> ISA 2000 only supports one external connection. You will have to use a 3rd
> party software like RainConnect or a hardware solution like BGP for that.
>
> John Tolmachoff MCSE, CSSA
> IT Manager, Network Engineer
> RelianceSoft, Inc.
> Fullerton, CA 92835
> www.reliancesoft.com
>
> > -----Original Message-----
> > From: Friese, Casey [mailto:cfriese@xxxxxxxxxxxxx]
> > Sent: Thursday, February 13, 2003 6:59 AM
> > To: [ISAserver.org Discussion List]
> > Subject: [isalist] ISA and ISDN backup connection
> >
> > http://www.ISAserver.org
> >
> >
> > I have an ISA-to-ISA VPN connection setup between a remote office and
our
> > corporate HQ.
> >
> > The corporate HQ is connected to the internet using a T1 that goes
> directly into the
> > ISA
> > The remote office has DSL for an internet connection going directly into
> the ISA.
> >
> > The tunnel comes up and users from both networks can communicate with
> > eachother - everything is fat, dumb and happy,
> > except when the DSL connection decides to go to sleep.
> >
> > Because of the unreliable nature of the DSL connection and lack of any
> other high-
> > speed internet service in the remote office's location we have decided
to
> purchase
> > 2 external ISDN modems to use as backup connections in the event that
the
> DSL
> > connection craps out.
> >
> > Each ISDN devices is identical, made by MultiTech and connects to the
> serial port
> > of each ISA server.
> >
> > What I am looking for is guidance with how to configure RRAS so when the
> Tunnel
> > is detected as being unreachable, RRAS will fire off the ISDN connection
> to
> > connect to the ISDN modem in the corporate HQ. If this is beyond RRAS's
> > capability, is there another means, short of initiating the connections
> manually,
> > while utilizing the existing hardware?
> >
> > Any help would be greatly appreciated.
> >
> > Thank You,
> > -Casey Friese
> >
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Exchange Server Resource Site: http://www.msexchange.org/
Windows Security Resource Site: http://www.windowsecurity.com/
Windows 2000/NT Fax Solutions: http://www.ntfaxfaq.com
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