iptables-save | grep rtp
:rtpengine - 0:0
-A INPUT -p udp -j rtpengine
Error: target extension not found
iptables-save v1.8.9 (nf_tables): Parsing nftables rule failed
Perhaps iptables-save or your kernel needs to be upgraded.
把所有的input链路所有udp包，重定向到rtpengine的内核模块