3Com 5102B-EE Network Router User Manual


 
4 - 56 ONline Ethernet Bridge Module Installation and Operation Guide
SET DEVICE SUBNET_MASK_PORT1
Use the SET DEVICE SUBNET_MASK_PORT1 command to specify the
subnetwork mask for your type of Internet class.
Format
SET DEVICE SUBNET_MASK_PORT1 {mask}
Parameters
{mask} = 4-byte hex address
Example
OEBM> set device subnet_mask_port1 FF.FF.FF.0 [ENTER]
Device subnet mask changed.
Description
The SET DEVICE SUBNET_MASK_PORT1 command enables you to specify
the subnetwork mask for your type of Internet class. In general, the
subnetwork mask is a 32-bit IP address with all ones in the network and
subnet portions of the address and zeroes in the host portion.
For example, if the address of your Bridge Module is 151.104.6.10 (which is
a Class B network 151.104.0.0) and your company has elected to use the
third byte as the subnet identifier (in this example 6), the subnet mask is
255.255.255.0 (ff.ff.ff.00 in hexadecimal representation).