BlackBerry Forums Support Community - View Single Post - Blackberry 9900 - Wifi Tethering

err0s · 03-19-2012, 12:18 PM

Nope - if the end device is getting a 10.x.x.x address from the hotspot's DHCP, and the VPN's end node you are trying to connect to is another 10.x.x.x then you definitely have a problem. When the client tries to connect to a 10.x.x.x it's going to look in its local route tables and not through the tunnel.

Stevew gives a great description of how two VPN gateways negotiate and encrypt (PHASE 1), but does not address the tunnel creation between the endpoints/nodes (PHASE 2).

What is needed is a way to change the IP address the hotspot issues to the host, and unfortunately the current code does not supply a user friendly way to adjust this. Using a 10.0.0.1 is extremely short sited as it conflicts with a good 90% of the corporate IP addressing schemes I've run into.

03-19-2012, 12:18 PM	#3
err0s New Member Join Date: Mar 2007 Model: 8100 Carrier: Cingular Posts: 1	Re: Blackberry 9900 - Wifi Tethering - Change Router DHCP Addresses? Nope - if the end device is getting a 10.x.x.x address from the hotspot's DHCP, and the VPN's end node you are trying to connect to is another 10.x.x.x then you definitely have a problem. When the client tries to connect to a 10.x.x.x it's going to look in its local route tables and not through the tunnel. Stevew gives a great description of how two VPN gateways negotiate and encrypt (PHASE 1), but does not address the tunnel creation between the endpoints/nodes (PHASE 2). What is needed is a way to change the IP address the hotspot issues to the host, and unfortunately the current code does not supply a user friendly way to adjust this. Using a 10.0.0.1 is extremely short sited as it conflicts with a good 90% of the corporate IP addressing schemes I've run into.
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