Enterasys Networks Fast Network 10 manual To assign a new IP address, refer to Section

Using LCM to Manage the FN10

The noRIP option allows you to turn off the routing information that builds the routing table. You would use this option when you are connecting network devices that do not support RIP.

4.5.3 Changing a Subnet Mask

You can optionally set the subnet mask for a port. A subnet mask is a

32-bit address mask used in IP to specify a particular subnet. If the subnet mask is 0.0.0.0, the FN10 automatically converts the displayed mask to the standard default, based on the port’s IP address class. (Class A address masks are 255.0.0.0, Class B address masks are 255.255.0.0, Class C address masks are 255.255.255.0.)

To display IP addresses, subnet masks, and MAC addresses of all ports on the FN10 you are managing, at the LCM prompt:

1.Type ipaddr

LCM displays the current IP address table, for example:

Port IP Address		Address Mask	MAC Address
1	192.138.217.1	255.255.255.0	00:40:27:00:06:1f
2	0.0.0.0	255.0.0.0	00:40:27:00:06:c3
3	192.138.217.10	255.255.255.0	00:40:27:00:06:3e
4	0.0.0.0	255.0.0.0	00:40:27:00:03:7a
5	0.0.0.0	255.0.0.0	00:40:27:00:05:c7
6	192.138.217.20	255.255.255.0	00:40:27:00:04:4a
7	192.138.217.50	255.255.255.0	00:40:27:00:06:9e

To change the subnet mask, at the LCM prompt:

1.Type ipaddr <PORT-NUMBER> <IP ADDRESS> <SUBNET MASK>

For example, ipaddr 6 192.138.217.40 255.255.240.0 would set the subnet mask for port 6 to 255.255.240.0. LCM responds by redisplaying the address table.

NOTE

When you change the subnet mask for a port, you must also enter the IP address for that port. Make sure you enter the IP address for the port correctly; whatever you enter becomes the IP address.

To assign a new IP address, refer to Section 3.1.

Fast Network 10 User Guide Page 4-17