Enterasys Networks 2H253 manual Setting the Subnet Mask, Configuration Warning Screen, Subnet Mask

General Configuration Screen

4.2.2Setting the Subnet Mask

If the management workstation that is to receive SNMP traps from the device is located on a separate subnet, the subnet mask for the device may need to be changed from its default value.

To change the subnet mask from its default, perform the following steps:

1.Use the arrow keys to highlight the Subnet Mask field.

2.Enter the subnet mask into this field using Dotted Decimal Notation (DDN) format. For example: 255.255.0.0

3.Press ENTER. If the subnet mask is valid, the cursor returns to the beginning of the Subnet Mask field. If the entry is not valid, the screen displays the message “INVALID SUBNET MASK OR FORMAT ENTERED”. Local Management does not alter the current value, but it does refresh the Subnet Mask field with the previous value.

4.Use the arrow keys to highlight the SAVE command, then press ENTER. The warning screen shown in Figure 4-4displays.

Figure 4-4 Configuration Warning Screen, Subnet Mask

WARNING!

YOU HAVE ELECTED TO SAVE ONE OR MORE CONFIGURATION

ITEMS THAT REQUIRE RESETTING THIS DEVICE.

ARE YOU SURE YOU WANT TO CONTINUE?

YESNO

30691_10

5.Use the arrow keys to highlight the YES command, then press ENTER. The changes are saved and the device reboots.

Device Configuration Menu Screens 4-9