Re: SoftPhone - one way voice over VPN (good src addr)

From: Kurt Kruegel (kurt@cybernex.net)
Date: Thu Dec 11 2003 - 13:36:33 GMT-3


under the softphone config
have you changed the network setting ip to
be the one assigned by the vpn tunnel ??

----- Original Message -----
From: "Marko Berend" <marko.berend@storm.hr>
To: <ccielab@groupstudy.com>
Sent: Thursday, December 11, 2003 5:17 AM
Subject: SoftPhone - one way voice over VPN (good src addr)

> Hi to all,
>
> I am having trouble with Cisco SoftPhone over VPN. The voice is one way
> only. I am not getting any traffic from the IP phone on the other end.
> The scenario is this:
> SPhone-------VPN----------->PIX-------->CM-------->IP Phone 7940
>
> The IP address on the SoftPhone is correct in the SP network settings
> (cisco.com says this is the solution but it isn't working still).
> Everything works fine on the LAN.
> From VPN I can ping everything, CM, VG, even the IP phone I am calling,
> but I'm not getting voice traffic from it. When I sniff the traffic I
> see that nothing is coming.
> From CallManager I can verify that the SoftPhone is registered with the
> correct IP address.
> I have also tried modifying the MTU on the VPN client but to no avail.
>
> CM is 3.1
> SF is 1.3(3)
> PIX 6.3(3)
> VPN client 4.x (I've tried with 3.x also)
>
> I suspect that the PIX is making my life miserable, but it is not
> logical. It must be a bug.
> Any comments or good ways to troubleshoot it?
>
> Thanks
>
> Marko
>
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