ANSWERED Does airvpn support STUN?

[space5 2]

https://en.wikipedia.org/wiki/STUN STUN (Session Traversal Utilities for NAT; originally Simple Traversal of User Datagram Protocol (UDP) through Network Address Translators)

I want to use STUN with XMPP audio calls.

What about https://en.wikipedia.org/wiki/Traversal_Using_Relays_around_NAT ?

[OpenSourcerer 1435]

Is this a request in regards to AirVPN's XMPP server?

[space5 2]

16 hours ago, OpenSourcerer said:

Is this a request in regards to AirVPN's XMPP server?

No. I use another XMPP server. I didn't know airvpn runs an XMPP server.
Since airvpn applies NAT to my IP address, I want to know whether airvpn's NAT supports STUN.

[Staff 9972]

7 hours ago, space5 said:

No. I use another XMPP server. I didn't know airvpn runs an XMPP server.
Since airvpn applies NAT to my IP address, I want to know whether airvpn's NAT supports STUN.

Hello!

The AirVPN's symmetric-like NAT makes STUN unsuitable, we're sorry, but in our infrastructure you can directly rely on the inbound remote port forwarding feature, so you can avoid an external STUN server. However, in your specific XMPP case, probably you will need anyway a TURN server. For example, with Pidgin (a client which implements XMPP) you can enable audio and video behind VPN without STUN but you will need a TURN server, according to the documentation, if we understand correctly.

For the readers, please be careful with STUN as it may cause traffic leaks outside the VPN tunnel and disclose your "real" IP address if Network Lock is disabled. Typical uses of STUN are in browsers (with WebRTC) and SIP.

Kind regards
 

[space5 2]

16 hours ago, Staff said:

in our infrastructure you can directly rely on the inbound remote port forwarding feature, so you can avoid an external STUN server.

Can XMPP use forwarded ports on airvpn servers? I'm not aware of any setting that allows XMPP to use specific ports for calls.

[Staff 9972]

6 hours ago, space5 said:

23 hours ago, Staff said:

in our infrastructure you can directly rely on the inbound remote port forwarding feature, so you can avoid an external STUN server.

Can XMPP use forwarded ports on airvpn servers? I'm not aware of any setting that allows XMPP to use specific ports for calls.

Hello!

XMPP is a protocol. Clients implementing the protocol may let you specify listening ports which become indispensable for specific needs. In Pidgin you can do it in "Preferences" > "Network" > "Ports" > "Manually specify a range of ports to listen to".

The other option "Enable automatic router port forwarding" is probably based on UPnP, so it must be disabled when you want to run Pidgin in the VPN.

Kind regards