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тАО03-05-2009 10:17 AM
тАО03-05-2009 10:17 AM
softphone over IPSec VPN
I have the softphone connect to the NBX and create a profile. the NBX thinks the phone is IPOnline but the pcXset is stuck in waiting for init.
Any ideas?
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тАО03-05-2009 11:01 AM
тАО03-05-2009 11:01 AM
Re: softphone over IPSec VPN
IPSec VPN tunnels can be a bear to troubleshoot when specific applications fail. So if you have the option, try making sure everything works with PPTP first.
The VPN is probably not intercepting packets for the NBX and/or the Softphone application is talking to the NIC directly, bypassing the VPN.
Some apps select a NIC when they are installed. When a VPN is added or used then the App needs to first know the VPN exists and can be selected. I have seen where the same PC will work or fail depending on the type of VPN used. Mainly because different VPN connections have specific characteristics i.e. PPTP creates its own Virtual NIC (seen in IPCONFIG) and by default uses the Tunnel as the default Route. IPSec VPN's don't natively use a Virtual NIC (doesn't show up in IPCONFIG) and use routing decision and don't support Multicast natively (without GRE for example).
Now on the PC If i remember the NBX Softphone has an option to pick the NIC to use for connectivity. If yes when the VPN is up, does the softphone show only the NIC or the NIC and the VPN as selections. If both select the VPN and see if there is a difference. If not then the VPN client should give you an option to add routes to it so that when it gets a request for the IP address or Network the NBX is on it will intercept these packets and send them over the VPN instead of the NIC.
Lastly, its also possible that in rare instances the path to a device from a remote device over the VPN is different that the path back. L2 over VPN but L3 not. Make sure your Firewall at work or Home router is not dropping packets and configured correctly.
Hope this helps.
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тАО03-05-2009 12:05 PM
тАО03-05-2009 12:05 PM
Re: softphone over IPSec VPN
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тАО03-05-2009 12:37 PM
тАО03-05-2009 12:37 PM
Re: softphone over IPSec VPN
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тАО03-05-2009 12:45 PM
тАО03-05-2009 12:45 PM
Re: softphone over IPSec VPN
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тАО03-05-2009 02:12 PM
тАО03-05-2009 02:12 PM
Re: softphone over IPSec VPN
Also make sure you are using the ip settings on the computer as well .
This message was edited by merlin on 3-5-09 @ 2:12 PM
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тАО03-05-2009 03:40 PM
тАО03-05-2009 03:40 PM
Re: softphone over IPSec VPN
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тАО03-06-2009 07:29 AM
тАО03-06-2009 07:29 AM
Re: softphone over IPSec VPN
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тАО03-09-2009 08:14 PM
тАО03-09-2009 08:14 PM