I am experiencing the following issue:
- I have an Avaya IP Softphone at my users Notebooks, that when connected directly to the PBX, and I sniff my notebook using Wireshark, I can see the packets are correctly marked with DSCP 46. But when I connect using the VPN Cisco Client, at the user notebook, for some reason the Cisco VPN Client, "remarks" any packet sent to the tunnel with DSCP 0 . This is causing my VoIP network over VPN to have issues. I didn't have these problems before with CheckPoint. Any ideia what might be happenning ? Is it a parameter at my ASA 5540 that is telling the VPN Client to remark any packet to DSCP 0 ? Why can't the Cisco VPN Client just send the packets to the tunnel with the original marking ?
Attached are two session captured, showing the problem. On with CheckPoint VPN Client, working fine! ANd the other with Cisco VPN Client setting the DSCP to 0 , before tunnelating it.
Thanks in advance for your time and help!