Folks
FS: 1.4.13 / OpenWrt
Topology
SIP Phone <-> WIFI AP / NAT <-> Cloud <-> Router / NAT <-> Router / NAT <-> FS
192.168.10.x Public IP 192.168.1.x 10.0.0.128
The SIP packets traverse the NAT chain correctly.
The RTP packets from / to Phone are from / to 192.168.10.x, so, not getting through (because private N/W addresses embedded in SIP messaging)
I am considering the following methods of handling this, but, before doing a lot of work / research, is there a better method?
1 - Using firewall rules (somehow, if possible, connection tracking?) to SNAT/DNAT packets to/from private network ranges which are not local lan range
2 – (appears simplest) Using channel variables (addresses) from SIP messaging to alter addresses prior to bridge.
Any thoughts?
Thanks;
Bill Ross
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