RE: VPN lan conflict question

From: "Thor" <thor@xxxxxxxxxxxxxxx>
To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
Date: Tue, 13 Jul 2004 12:04:19 -0700
Ding ding ding!!!

----- Original Message ----- 
From: "Dana J. Scott" <DJS@xxxxxxxxxxxxx>
To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
Sent: Tuesday, July 13, 2004 11:54 AM
Subject: [isalist] RE: VPN lan conflict question


> http://www.ISAserver.org
>
> Eagles, Hotel California
>
> -----Original Message-----
> From: John Tolmachoff (Lists) [mailto:johnlist@xxxxxxxxxxxxxxxxxxx]
> Sent: Tuesday, July 13, 2004 12:54 PM
> To: [ISAserver.org Discussion List]
> Subject: [isalist] RE: VPN lan conflict question
>
>
> http://www.ISAserver.org
>
> OK, Simon and Garfunkel fan.
>
> John Tolmachoff
> Engineer/Consultant/Owner
> eServices For You
>
>
> > -----Original Message-----
> > From: Thor [mailto:thor@xxxxxxxxxxxxxxx]
> > Sent: Tuesday, July 13, 2004 11:38 AM
> > To: [ISAserver.org Discussion List]
> > Subject: [isalist] RE: VPN lan conflict question
> >
> > http://www.ISAserver.org
> >
> > Even though they can check out any time they like... (Easy one :)
> >
> > t
> >
> >
> > ----- Original Message -----
> > From: "John Tolmachoff (Lists)" <johnlist@xxxxxxxxxxxxxxxxxxx>
> > To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
> > Sent: Tuesday, July 13, 2004 11:28 AM
> > Subject: [isalist] RE: VPN lan conflict question
> >
> >
> > http://www.ISAserver.org
> >
> > It would only conflict if the remote side has a netmask of 255.128.0.0
> > or worse, as then the remote router will say hey, this belongs on this
> network,
> > you can not leave.
> >
> > John Tolmachoff
> > Engineer/Consultant/Owner
> > eServices For You
> >
> >
> > > -----Original Message-----
> > > From: Greg Foulks [mailto:greg.foulks@xxxxxxxx]
> > > Sent: Tuesday, July 13, 2004 11:09 AM
> > > To: [ISAserver.org Discussion List]
> > > Subject: [isalist] RE: VPN lan conflict question
> > >
> > > http://www.ISAserver.org
> > >
> > > sorry new Ip range being used. The machine we need access to on the
> > > remote side is addressed with 10.100.60.4 how would that network
> > > conflict with my 10.0.0.0 / 255.255.255.0 network?
> > >
> > > Greg
> > >
> > > John Tolmachoff (Lists) wrote:
> > >
> > > >http://www.ISAserver.org
> > > >
> > > >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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> > > >>
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> > > >.
> > > >
> > > >
> > > >
> > >
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Server
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> http://www.ntfaxfaq.com
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> ------------------------------------------------------
> Other Internet Software Marketing Sites:
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> Leading Network Software Directory: http://www.serverfiles.com
> No.1 Exchange Server Resource Site: http://www.msexchange.org
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> Network Security Library: http://www.secinf.net/
> Windows 2000/NT Fax Solutions: http://www.ntfaxfaq.com
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RE: VPN lan conflict question

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