User guide

Advanced Network Configurations
8-11
Alvarion
The IP address is primarily used to address this Base Station when you use the
AP Manager program to configure and/or monitor this device.
When your organization does not use IP addressing, you can enter a user-
defined value. For example a value of the same pattern as the factory-set IP
address 153.69.254.254, where you replace the last three digits with a
numerical value in the range of “1” to “253”.
Automatically assign an IP address
In case when a DHCP server is available on the network, an IP address will be
automatically assigned to the Base Station by the DHCP server. To enable
automatically obtaining an IP address form the DHCP server, select the field
Obtain an IP address from DHCP server on the Base Station IP tab.
For more information about DHCP refer to BOOTP and DHCP.
Subnet Mask
The field Base Station Subnet Mask is a common parameter and must be the
same for ALL network devices within your IP subnet.
You can use either the default value (255.255.0.0) or change the subnet mask to
a value that applies in your network.
If
Obtain an IP address from DHCP server is enabled, the subnet is also
automatically entered.
Default Router
The field Default Router IP is an optional field that is relevant when you intend to
use the Base Station support for TRAP messages (see also SNMP Parameters).
You can use the Default Router IP field to identify the IP address of the router
which the Base Station will use to find the Trap Host IP Address (identified in
the SNMP Parameters).
The default router and the trap host IP address described later in this chapter
are only used for TRAP messages generated by the Base Station upon a reset,
modification of the configuration, or forced reload procedure.
If the value of the field
Default Router IP is set to 0.0.0.0 (default), then no TRAP
messages are initiated by this Base Station.
The Default Router is also relevant if you want to manage (or just ping) the Base
Station from an other subnet.
Time To Live (TTL)
The field Default TTL (Time To Live) identifies the maximum number of hops for
an IP message generated by the Base Station (typically used for the trap host
messages).