How to change default ports?

[ramteid]

By default, the ports 49100 and 1024 are used to connect. This means that I can only run one instance using these ports.

I plan to run two simulations at the same time on the same workstation / IP in Isaac Sim Docker containers. I would like to use -p 12345:49100 for container 1 and -p 67890:49100 for container 2.

Unfortunately I don't find any reference how to change ports. Port 1024 seems to be picked from an ephemeral range somewhere.

[manic1841]

+1
My use case also involves running multiple container on a single host. Could you provide configuration option to customize the websocket port?

[ramteid]

The Nvidia streaming library doesn't support changing the port at all and apparently they don't plan to.
A workaround that worked for me is to write a reverse proxy that allocates containers to client IPs and redirects traffic in both directions. You will have to manually rewrite one initial websocket frame where Isaac Sim sends its Docker IP as ICE candidate for WebRtc (should be proxy IP). Then it also works with the standalone Nvidia streaming client.