Hi
I have 2 wan ports
Using routing mark i successfully route all voip calls to the VoIP WAN but the first issue i had was voip calls was going through but no audio
from firewall filter i added>input>udp>accept now there’s one way comm (receiver hears me but i cant hear)
i have turned off sip and h323 from firewall service ports
but still one way
pls help
Are you using some PBX behind the NAT? or you are just using some sip account on your pc-softphone or something… if you are using pbx you must do static nat on your router, 5060 (SIP) and udp for RTP. input chain allowed udp what you did it is not needed because voip traffic must pass through the router (forward chain). also if you are using dynamic ip address on your wan connections and you are routing your voip packet through wan2 check in wireshark which ip address are you sending to the outside… maybe stun resolving public ip from wan1 and another side is trying to return voice (rtp packets) to that address and that packet will not get to you.
you can try outbound call and from your pc or pbx take log with wireshark and you can put the results here, first thing first we must know does stun resloving the real public ip (wan2), if does then we are moving on firewall
thanks for your reply
Im using a pbx behind NAT with no stun
“if you are using pbx you must do static nat on your router, 5060 (SIP) and udp for RTP. input chain allowed udp what you did it is not needed because voip traffic must pass through the router (forward chain).” How do i go about this especially the rtp
No in using static ip for my wan
Thanks