Nat Traversal - Avaya 1230 Administration

NAT Traversal

The next five menu items apply to configuring the NAT Traversal Method if the IP Deskphone with
SIP Software is connected to the network through a Network Address Translation device or a
firewall.
NAT Signal
The IP Deskphone with SIP Software supports two methods of NAT traversal of signaling path:
SIP_PING and STUN.
The default NAT traversal method is None.
SIP_PING is a legacy Avaya Proprietary protocol for NAT Traversal for SIP signaling only. STUN is
an Internet standard for NAT traversal.
If the value for NAT traversal is not configured as None, this parameter overrides the value of the
parameter SIP_PING specified by the device configuration file for NAT_SIGNALLING.
If the value for NAT traversal is set to None, the value of SIP_PING, if specified by the device
configuration file for NAT_SIGNALLING, is used instead.
NAT_SIGNALLING is required for networks that use STUN or SIP_PING for NAT traversal.
NAT Media
The IP Deskphone with SIP Software supports STUN for media path the NAT traversal. The NAT
Media feature can be disabled by setting the NAT_Media field in Device Settings menu to NONE.
Note:
STUN protocol cannot coexist with Application Layer Gateway (ALG), Media Portals, or RTP
Proxy servers. If STUN is selected, ensure none of these devices are configured in the SIP
Proxy server.
NAT TTL
Enter the Time to Live (TTL) in seconds for the NATport if STUN is enabled. The IP Deskphone with
SIP Software pings the open ports on an interval less than the TTL to prevent the NAT from tearing
down the ports.
STUN S1 IP
Enter an IP address for the STUN S1 IP device. The STUN server must reside in the public Internet
for STUN protocol to be effective.
STUN S2 IP
Enter an IP address for the STUN S2 IP device. The STUN server must reside in the public Internet
for STUN protocol to be effective.
March 2015 SIP Software for Avaya 1200 Series IP Deskphones-Administration
Comments? infodev@avaya.com
NAT Traversal
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