RE: VPN lan conflict question

  • From: "John Tolmachoff \(Lists\)" <johnlist@xxxxxxxxxxxxxxxxxxx>
  • To: "'[ISAserver.org Discussion List]'" <isalist@xxxxxxxxxxxxx>
  • Date: Tue, 13 Jul 2004 10:50:57 -0700

That means he does not know how to configure his subnet mask correctly. If
he is using a subnet mask of 255.255.0.0, there will be a problem. But if he
uses a subnet mask of 255.255.192.0 or better, it will be fine.

John Tolmachoff
Engineer/Consultant/Owner
eServices For You


> -----Original Message-----
> From: Greg Foulks [mailto:greg.foulks@xxxxxxxx]
> Sent: Tuesday, July 13, 2004 10:30 AM
> To: [ISAserver.org Discussion List]
> Subject: [isalist] RE: VPN lan conflict question
> 
> http://www.ISAserver.org
> 
> Right - but as long as my LAN (10.0.0.0) does not use any IP in the
> (10.0.80.0) then all should be fine correct? The lan admin for the
> remote side said they can't allow us to VPN to their site because our
> lans would conflict. Something doesn't sound right...
> 
> Greg
> 
> William Holmes wrote:
> 
> >http://www.ISAserver.org
> >
> >Hello,
> >
> >IP routing rules apply. If there is an overlap between the networks you
will
> >have trouble. If not there is nothing really special about the 10.
networks.
> >Keep in mind that ISA 2000 may have added the entire 10.0.0.0 range to
the
> >LAT. You would have to remove that.
> >
> >Bill
> >
> >-----Original Message-----
> >From: Greg Foulks [mailto:greg.foulks@xxxxxxxx]
> >Sent: Tuesday, July 13, 2004 12:57 PM
> >To: [ISAserver.org Discussion List]
> >Subject: [isalist] VPN lan conflict question
> >
> >http://www.ISAserver.org
> >
> >My internal LAN is a class C 10.0.0.0 can I connect to another network
via
> >VPN where the remote lan is a class C 10.0.80.0? Will there be a
conflict?
> >
> >Thanks,
> >Greg
> >
> >
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