Not receiving RTP on my client from the wan interface

Question:

I am getting voice only in one direction.. and I am seeing To net nb arp failures 38791 in the rtp section on the wan side.

what am I missing in the config??

WAN interface: 10.110.20.13/24 and I set a route to get to 10.196.29.2
# more /etc/sysconfig/network-scripts/route-voip0
10.196.29.0/28 via 10.110.22.1 dev voip0

Sip is working ok, and call is made but I hear nothing on my sip client.

is there something I am missing in the config to get the rtp to go out to the client??

Thanks
Bob

Ah, think I figured it out... I had to add a gateway to the WAN interface. now I am hearing voice.

You can ignore the question,

Bob