Binary package “nat-rtsp-dkms” in ubuntu eoan

Connection tracking and NAT support for RTSP

 Real Time Streaming Protocol is a network control protocol designed for use in
 entertainment and communications systems to control streaming media servers.
 For example in France, the modem provided by Free ISP (Freebox) uses this
 protocol to broadcast TV/radio channels on the LAN. This module is required
 for any router between the modem and end-users.