Cabletron Systems MicroMMAC 24T MICROMMAC- - Manual (Page 65)

LOCAL MANAGEMENT
4-11
3. Press the Return key.
The new value appears in the IP Address field.
4. If the IP Address is correct, highlight the SAVE command and then
press the Return key.
The “SAVED” message appears on the screen indicating that your
changes have been saved to memory.
The MicroMMAC-T will then do a soft reset.
Modifying the Subnet Mask
NOTE: Consult your Network Administrator prior to setting the Subnet
Mask.
Subnets are logical divisions of the network that serve to isolate groups of
devices. The Subnet Mask determines how the MicroMMAC-T directs
SNMP Trap messages (see Section 4.3.4 for information about SNMP
Traps) to a destination address. The MicroMMAC-T directly addresses
destinations within its own subnet. The MicroMMAC-T sends messages
destined for other subnets to a router.
• Use the Subnet Mask factory default setting, 0.0.0.0, when the
workstations designated to receive trap messages exist within the same
subnet as the MicroMMAC.
• Set a new value for the Subnet Mask when workstations designated to
receive traps reside on a different subnet (that is, across a gateway or
router).
To modify the Subnet Mask:
1. Highlight the Subnet Mask field.
2. Type the Subnet Mask into the field. The format for this entry is
XXX.XXX.XXX.XXX, with values of XXX ranging from 0-255.
3. Press the Return key.
If the format is not valid, the “INVALID IP FORMAT” message
appears. Retype the Subnet Mask using the correct format.
4. If the format is correct, highlight the SAVE command and then press
the Return key.