Ip Addressing With Dhcp - Avaya Communication Server 1000 Installation And Commissioning Manual

Planning
Important:
The master WLAN IP Telephony Manager 2245 must have an IP address statically
configured.
If using DHCP for the rest of the network, the DHCP Server must have the static IP address of
the master WLAN IP Telephony Manager 2245 configured on it. If using DNS, the DNS
Server must have the static IP address of the master WLAN IP Telephony Manager 2245
configured on it.
The wireless handsets can be configured to use DHCP or can be assigned a static IP address .
If there is no DHCP Server, the system administrator must determine what IP addresses are
to be used for static addressing. As well, whether static IP addressing or DHCP is used, a pool
of alias IP addresses must be configured on the WLAN IP Telephony Manager for the use of
the wireless handsets. Ensure that the pool of alias IP addresses is reserved exclusively for
the use of the wireless handsets.
For information about configuring a static IP address on a WLAN IP Telephony Manager 2245,
see WLAN IP Telephony Manager 2245 configuration
configuring a static IP address for a WLAN Application Gateway 2246, see
WLAN Application Gateway 2246 IP address
static IP address on the handsets, see Avaya WLAN Handsets Fundamentals (NN43001-505).
For information about assigning IP addresses to the APs, see the vendor-specific
documentation.
Record the static IP address assignments and store them in a safe place.

IP addressing with DHCP

A pool of alias IP addresses must be configured on the WLAN IP Telephony Manager 2245
for the use of the wireless handsets. The use of a 22-bit subnet mask provides IP addresses
for approximately 500 wireless handsets (1024 nodes). Allocate a pool of an equal number
of IP addresses on the DHCP server for the wireless handsets.
For example:
142.223.204.1 to 142.223.205.254 are allocated on the DHCP Server for the use of the
wireless handsets.
142.223.206.1 to 142.223.207.254 are configured on the WLAN IP Telephony Manager for IP
aliases for the wireless handsets.
Ensure that all these IP addresses are reserved on the DHCP Server for the use of the wireless
handsets and not assigned to any other device.
82 Avaya WLAN IP Telephony Installation and Commissioning
on page 129. For information about
on page 192. For information about configuring a
Configuring the
November 2010