Cabletron Systems CSX200 CyberSWITCH, User Manual

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General Configuration Using Local Management
CSX200 Family User’s Guide 105
Setting the Subnet Mask
Subnets are logical divisions of the network. To change the Subnet Mask from its default value,
perform the following steps:
1. Use the arrow keys to highlight the Subnet Mask field.
2. Enter the Subnet Mask using Dotted Decimal Notation (DDN) format. Values for each decimal
can be from 0 to 255.
For example: 255.255.0.0
3. Press ENTER. If the Subnet Mask entered was a valid format, the cursor returns to the
beginning of the Subnet Mask field. If the entry was not valid, the Event Message field displays
“INVALID SUBNET MASK OR FORMAT ENTERED”. Local Management does not alter
the current value and refreshes the Subnet Mask field with the previous value.
4. Use the arrow keys to highlight the SAVE command field.
5. Press ENTER. The Event Message field at the top of the screen displays “SAVED OK”.
Setting the Default Interface
To set the default interface, perform the following steps:
1. Use the arrow keys to highlight the Default Interface field.
2. Enter the interface number for the Default Gateway in this field.
3. Press ENTER. If the interface entered was a valid format, the cursor returns to the beginning of
the Subnet Mask field. If the entry was not valid, the Event Message field displays
“PERMISSIBLE RANGE: 1...1.” Local Management does not alter the current value and
refreshes the Default Interface field with the previous value.
4. Use the arrow keys to highlight the SAVE command field.
5. Press ENTER. The Event Message field at the top of the screen displays “SAVED OK”.