Multi-Tech Systems MVP-2410 User Manual

Page of 395
MultiVOIP User Guide  
Technical Configuration 
 
157
 
NAT Traversal Definitions (cont’d)
 
Field Name 
Values 
Description 
Enable 
(STUN) 
Y/N 
Enables STUN client functionality in 
the MultiVOIP.   
STUN (Simple Traversal of UDP 
through NATs (Network Address 
Translation)) is a protocol that allows 
a server to assist client gateways 
behind a NAT firewall or router with 
their packet routing.  
Name/IP 
(Server) 
n.n.n.n 
0 - 255 
IP address of the  STUN server. 
Port (Server; 
NAT/STUN
numeric; 
default= 
3478 
The data port (TDM time slot) at 
which STUN info will be transmitted 
and received. 
Keep Alive 
(Timers; 
NAT/STUN
60 – 3600
(in 
seconds) 
The interval at which the STUN client 
sends indicator (“Keep Alive”) 
packets to the  STUN server to 
determine whether or not the STUN 
server is available.