RE: Change IP Address of VPN
- From: "William Robertson" <robertson.william@xxxxxxxxxxxxxx>
- To: "'[ISAserver.org Discussion List]'" <isalist@xxxxxxxxxxxxx>
- Date: Wed, 2 Jul 2003 08:24:08 +0200
Hi Tom
Don?t know if I understand. Are you asking whether a new resource record
for my ISA?s external IPis created in my DNS once a VPN client has
connected? If so, I will check shortly?
As for the clients unable to connect, I mentioned earlier that the
problem is that RRAS seems to secure the external IP Address upon which
the VPN has been established (well, that?s my naïve understanding so
far) and this then prohibits any other non-VPN connection to then leave
ISA on that same IP Address. So ISA then decides to route all other
traffic (such as my SAP/R3 traffic) through one of the other 2 IP
Addresses, and the reason then why my connection fails is because the
?receiving? firewall for my SAP/R3 connection doesn?t permit that
specific IP Address. It is configured to only allow the first address,
and none others.
Now I know that I can fix this by telling my parent company to accept my
full range of addresses, but I am concerned for future problems arising
from a similar scenario.
That is why I wish to change the IP Address that VPN clients use to
connect to my ISA Server (I wish to use the last of the 3 addresses and
?dedicate? it to VPN connections only) so that all the other (normal)
traffic goes through the first IP Address, as it currently does, and
then all inbound VPN?s are established on the last IP Address.
Your comments?
-----Original Message-----
From: Thomas W Shinder [mailto:tshinder@xxxxxxxxxxxxxxxxxx]
Sent: 02 July 2003 08:16 AM
To: [ISAserver.org Discussion List]
Subject: [isalist] RE: Change IP Address of VPN
http://www.ISAserver.org
Hi William,
OK, but is that true when the Internet stops working when the VPN
clients connect? And what hosts are not able to access the Internet and
what ISA client type are they?
Thanks!
Tom
Thomas W Shinder
<http://www.isaserver.org/shinder> www.isaserver.org/shinder
ISA Server and Beyond: http://tinyurl.com/1jq1
Configuring ISA Server: <http://tinyurl.com/1llp>
http://tinyurl.com/1llp
-----Original Message-----
From: William Robertson [mailto:robertson.william@xxxxxxxxxxxxxx]
Sent: Wednesday, July 02, 2003 12:35 AM
To: [ISAserver.org Discussion List]
Subject: [isalist] RE: Change IP Address of VPN
http://www.ISAserver.org
Hi Tom
My last communication was a bit misleading, sorry.
I?m not quite sure what a ?resource record? is, but in my DNS Zones I
only have an entry for the single internal IP address of my ISA Server.
All 3 external IP Addresses do not appear at all in my DNS.
I would think this to be correct because there is only a TCP/IP DNS
entry for the internal interface, and none for the external interface.
Cheers
William R.
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