Is port 3478 UDP or TCP?
The standard listening port number for a STUN server is 3478 for UDP and TCP, and 5349 for TLS.
Is stun UDP or TCP?
The STUN Protocol. In its essence, STUN is a simple server-client protocol. A server using the STUN protocol will rely on both UDP and TCP protocols. These servers usually listen on port 3478.
What is a stun port?
A STUN (Session Traversal of User Datagram Protocol [UDP] Through Network Address Translators [NATs]) server allows NAT clients (i.e. IP Phones behind a firewall) to set up phone calls to a VoIP provider hosted outside of the local network. The RFC states that this port and IP are arbitrary.
What port is 3478 used for?
Service Name and Transport Protocol Port Number Registry
| Service Name | Port Number | Description |
|---|---|---|
| stun | 3478 | Session Traversal Utilities for NAT (STUN) port |
| turn | 3478 | TURN over TCP |
| turn | 3478 | TURN over UDP |
| stun-behavior | 3478 | STUN Behavior Discovery over TCP |
What port does WhatsApp call use?
The default port for the WhatsApp Business API client is 5222 . If that port is not available, the application will fallback to port 443 . Port 443 needs to be opened for HTTPS at the minimum for application registration and restarts.
What is ice in Lync?
ICE is a protocol that is used to find & establish media path in a call, simply like with SIP, we have a SIP server “Lync Frontend” and a SIP client “Lync Client”, also with ICE we have an ICE server “Lync Edge” and an ICE Client “Lync Client”
What is STUN VoIP?
Session Traversal of User Datagram Protocol through Network address translator(STUN) is a protocol used by VoIP utilities for communication between the machines hidden behind a NAT gateways. STUN is a client server protocol. STUN servers can detect anomalies and respond with error messages.
What protocols use UDP?
Some common protocols which use UDP are: DNS, TFTP, ARP, RARP and SNMP. When people refer to “TCP/IP” remember that they are talking about a suite of protocols, and not just one (as most people think). TCP/IP is NOT one protocol. Please see the Protocols section for more information.
What are UDP and TCP ports?
TCP and UDP ports. A port is a 16-bit number used to identify specific applications and services. TCP and UDP specify the source and destination port numbers in their packet headers and that information, along with the source and destination IP addresses and the transport protocol (TCP or UDP), enables applications running on hosts on…
What is an UDP port?
53 – Domain Name System (DNS).