Figure 27 Nat Traversal Configuration; Table 13 Nat Traversal Configuration - ZyXEL Communications ZyXEL Prestige 2000W User Manual

Prestige 2000W_V2 User's Guide

Figure 27 NAT Traversal Configuration

Table 13 NAT Traversal Configuration

LABEL
Select Type
Outbound Proxy
Outbound Proxy
Server Address
Outbound Proxy
Server Port
STUN (RFC3489)
88
DESCRIPTION
Select None if the Prestige is not behind a NAT router or the NAT router is a SIP
ALG.
Select By Outbound Proxy if your VoIP service provider has a SIP outbound
server to handle voice calls. This allows the Prestige to work with any type of NAT
router. Turn off a SIP ALG on a NAT router in front of the Prestige to keep it from
retranslating the IP address (since this is already handled by the outbound proxy
server).
Select STUN if there is a NAT router between the Prestige and the VoIP service
provider's SIP server and your VoIP service provider hosts a STUN server.
Select Fake WAN Address on SIP and RTP to use a NAT router's public IP
address and SIP port number in the Prestige's SIP messages. You must also
configure the NAT router to forward traffic with this port number to the Prestige.
This field displays the IP address or domain name of your outbound proxy server.
This field displays the port number to access proxy services.
Chapter 12 User Web Configurator Screens