Dhcp Server Location In A Nat Environment - Avaya Communication Server 1000 Installation And Commissioning Manual

System information
of the NAT router. The wireless VoIP network does not function if the IP Telephony Manager
2245 is located on the public side of the NAT router.
Port 10000 is used for bidirectional UDP traffic between the handset alias IP addresses of
the IP Telephony Manager 2245 and the Echo Server on the TPS used for NAT detection. Any
network security devices that monitor network traffic between the IP Telephony Manager 2245
and the Signaling Server(s) must be configured to allow traffic using port 10000 to pass freely
between these devices.

DHCP Server location in a NAT environment

The WLAN Handsets only support Full DHCP. The device acting as a DHCP Server to the
WLAN Handsets must be configurable to send the vendor-specific DHCP fields.
In some cases, the NAT router acts as the DHCP Server. In this case, configure the NAT router
with the required DHCP parameters and necessary information.
If a separate DHCP Server is used, it must be located on the private side of the network. See
Figure 22: Network configuration 3 with Full DHCP Server
Figure 22: Network configuration 3 with Full DHCP Server
96 Avaya WLAN IP Telephony Installation and Commissioning
on page 96 for more information.
November 2010