atcomsystems.ca/forum Forums TDM Business Telephone Systems Panasonic Telephones & Systems Sonicwall VPN for Panasonic

Anyone have a configuration sheet for setting up a Sonicwall vpn to work with a Panasonic TDE200 and a couple of offsite NT343 phones? The network guy I'm dealing with is having trouble setting up a Sonicwall TZ200 series and a TZ100 series for vpn to work with the Panasonic voip phones. I setup the phones and registered them on the local lan where the TDE200 resides and they both registered and worked fine. When the network guy took them to the remote office and setup the vpn, the phones keep rebooting every few minutes and they get one-way audio.

I've got some NT343's running across a VPN that work like a charm. Make sure the firewall is wide open for VPN traffic and that all your devices have the correct default gateway set.

If it is a vpn, then it is open to all traffic as long as he is using different sub nets. site 1 192.168.1.0 and site 2 192.168.2.0

make sure you can ping both ip address of the system from the remote site, if the dsp IP is blocked or clashing it will cause oneway voice and rebooting of the phones

OBT, I believe the Sonicwalls require firewall exclusions - even for the VPN tunnels. Those rules are probably already built if he used the VPN wizard.

I think there was another option called "Create Reflexive Rule" for each firewall rule that should also be checked (probably is by default).

Thanks for the responses guys. OBT, I'll have the network guy try and ping the dsp, I think he has only been trying the MPR's ip address which he says he gets a response from, I guess that would explain the phones behavior on the remote end. Toner, I'll have him check the options you mentioned for the Sonicwalls.

We'll see how this goes.

Well, the IT guy finally found the problem in the sonicwall. I don't have specifics, but he said it was due to a nat rule in the sonicwall that caused the phones to register to the wan ip instead of the private ip of the TDE100. After disabling that rule phones started working.

Thanks guys for the help and by the way the voip test tool came in very handy for troubleshooting this problem. It proved to the IT guy that something was still going on in the sonicwall.