how provide public ip and local ip manually to RTCMulticonnection instead using stun and turn server about rtcmulticonnection

[ROBERT-MCDOWELL]

you are talking about ip multicast which is not available in javascript today. a project started 2 years ago to implement it as a browser W3C standard but stopped to be financed by Cisco. however the main author of this project would be happy to see open source developers to continue the job...
https://lists.w3.org/Archives/Public/public-multicast/
https://www.w3.org/community/multicast/
https://github.com/GrumpyOldTroll/wicg-multicast-receiver-api
(btw ip multicast was implemented in the lovely missing flash plugin until 2021 and the end of plugins in browser)

[webleb]

@ROBERT-MCDOWELL @grimace @killmenot @muaz-khan
I am trying to build a stun-like script in javascript (not node.js) that read the ip's from a local file and i want to make rtcmulticonnection working without signal server.
does anyone can assist in that

[ROBERT-MCDOWELL]

@webleb you cannot develop a stun/turn server on javascript client side since the JS engine of browsers don't allow to create low level sockets and btw the sandbox does not allow other clients to know your IP.

[webleb]

@ROBERT-MCDOWELL
I dont want that Stun know the ip but just read it from input form enter it by user.

[ROBERT-MCDOWELL]

I suggest you learn what is a STUN/TURN server here
https://blog.ivrpowers.com/post/technologies/what-is-stun-turn-server/
STUN server must know the ip of each client, it's the main job of a STUN server

[webleb]

@ROBERT-MCDOWELL
I know what is STUN server.
i just want use same mechanism to pass the ip to webRTC.
i dont want that my new "STUN" to know the ip but just read it from a file or input form.

[webleb]

i just want a way to pass the ip to RTCMulticonnection without using stun and turn and signal server.
@ROBERT-MCDOWELL @grimace @killmenot @muaz-khan

[ROBERT-MCDOWELL]

you cannot, it's sandboxed! you have no other way to to get the ip but from STUN!

[webleb]

@ROBERT-MCDOWELL
suppose that i know the ip and i just want to pass it to webRTC (if it is complex i will use same mechanism that stun use it to pass it to webRTC).

[ROBERT-MCDOWELL]

do you understand when I say "sandboxed"?? it means you CANNOT hardcode p2p ips into webrtc, it's a security prevention

[webleb]

@ROBERT-MCDOWELL
i know sandboxed , it is used also in iframe in some case for security.
i just want to know where the ip is sandboxed ? in STUN? if it is not sandboxed in STUN i can use the same mechanism that STUN use it to pass it to RTCMulticonnection.

[ROBERT-MCDOWELL]

what you call "mechanism" is the ICE protocol, through UDP / TCP. better you just install an stun server locally and the discovery willl be ok since (again) you cannot manipulate ips in webrtc as ICE stun is encrypted between peers.

[webleb]

can i install stun on users mobile by downloading my app?
@ROBERT-MCDOWELL

[ROBERT-MCDOWELL]

this is off topic... better you go to stun server developers.... please close this issue now thanks