DTLS ports configuration

[ubuntu]

Hello @all,

need some advice how/where to set the DTLS ports for c2s and s2s in prosody's (0.12.5) configuration file.

For the s2s configuration block I have the following default in my prosody.cfg.lua

-- These modules are auto-loaded, but should you want
-- to disable them then uncomment them here:
modules_disabled = {
    -- "offline"; -- Store offline messages
    -- "c2s"; -- Handle client connections
    -- "s2s"; -- Handle server-to-server connections
    -- "posix"; -- POSIX functionality, sends server to background, etc.
}

----------------------------------------------------------------------------------
-- Server-to-server authentication
-- Require valid certificates for server-to-server connections?
-- If false, other methods such as dialback (DNS) may be used instead.

s2s_secure_auth = true

I am assuming  that I have to place the entry for the DTLS port under the above line, but not sure how. Which one of the 2 examples? Are they even correct ?

sample A:

s2s_direct_tls_ports = "5270"

sample B:

s2s_direct_tls_ports = { "5270" }

And  for c2s

c2s_direct_tls_ports = "5223"

or

c2s_direct_tls_ports = { "5223" }

If I take now one of each of the samples, the end  of the mentioned block from above would look like

s2s_secure_auth = true

s2s_direct_tls_ports = "5270"

c2s_direct_tls_ports = "5223"

Is my assumption correct? Any help very much appreciated.

Thank you