3Com 5102B-EE Network Router User Manual


 
3 - 18 ONline Ethernet Bridge Module Installation and Operation Guide
Default Gateway
The default gateway is the IP address of the gateway that will receive and
forward packets whose addresses are unknown to the local network. The
default gateway is useful when sending Bridge Module alert packets to a
manager workstation that is on a different network. For example, the
following command specifies the gateway with the address 195.24.25.36
to be used as the default gateway for port 2 of the Bridge Module.
OEBM> set device default_gateway_port2 195.24.25.36 [ENTER]
Subnetwork Mask
The subnetwork mask is specific for each type of Internet class. In general,
the subnetwork mask is a 32-bit IP address with all ones (1) in the network
and subnetwork portions of the address and zeroes (0) in the host portion.
The subnetwork mask is input as four pairs of hexadecimal digits separated
by periods to represent the 32-bit binary address. For example, to set the
subnetwork mask for a class C network you would enter the following
command.
OEBM> set device subnet_mask_port1 FF.FF.FF.0 [ENTER]
The subnetwork mask for a class B network would be set using the
following command.
OEBM> set device subnet_mask_port1 FF.FF.0.0 [ENTER]
Alert Settings
The SET ALERT command is used to enable or disable sending alerts to the
SNMP management workstation. Refer to the SET ALERT command for
information on the different types of alerts you can set. For example, the
following command enables sending an alert when a configuration change
is made to the concentrator or Spanning Tree topology change is detected.
OEBM> set alert change enable [ENTER]