User guide

Chapter 4: Monitoring and Managing the FN100
Page 4-14 Fast Network 100 User Guide
4.4.3 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 omitted, the FN100 automatically uses 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.)
Use the
ipaddr <PORTS> <ADDR> <MASK> command to change the subnet
mask.
FN100 > ipaddr 6 192.138.217.40 255.255.240.0
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.
To assign a new IP address, see Chapter 3, Section 3.1, Assigning IP
Addresses.
4.4.4 Changing a Community Name
A community name is similar to a password. You use the same steps to
assign a new community name or to change an existing community name.
This sets the MIB variable
sfadminAnyPass. You can then enter a
community name to perform any
SNMP sets.
Use the
community command to change an existing community name. At
the LCM prompt:
1. Type community
2. Enter the old community name.
If one has not been assigned, you do not need to enter anything. LCM
prompts you for the new community name.
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.