Setting up coturn for stun-only service behind AWS ELB

[Hariprasad-Taduru]

Hi,

As per the coturn config file (turnserver.conf), I came to know that we can setup and run coturn as stun-only service on aws ec2 instances.
Since these ec2 instances run only stun service, they dont need to have public IP address.
So my query is that can we setup stun-only corturn with multiple ec2 instances behing a aws elb?

If yes, can someone share the steps.
If not possible, can you detail the reasons pls.

Thank you.

[eakraly]

You can try using --tcp-proxy-port option in the config file

It should enable proxy protocol that would pass client IP as seen by LB (obviously you need to configure you LB accordingly).
Having said that:

• It only works over TCP
• You get dramatic reduction in performance and increase in complexity
• There are alternatives to get to higher capacity by using loadbalancing traffic across multiple STUN servers using DNS rather than LB (if that is the goal)

Hope that helps @Hariprasad-Taduru . Pls update if you had any success - would like to hear if this options works.