User guide

March 2005 Building Your Canopy Network
Through Software Release 6.1
Page 214 of 425 Issue 1
Canopy System User Guide
RECOMMENDATION:
The subscriber can access the SM by changing the subscriber device to
the accessing subnet. This hazard exists because the Community
String and Accessing Subnet are both visible parameters. To avoid
this hazard in Release 4.2 or a later release, configure the SM to filter
(block) SNMP requests. See Filtering Protocols and Ports on Page 303.
Trap Address
Specify the IP address (xxx.xxx.xxx.xxx) of an NMS to which trap information should be
sent. Trap information informs the NMS that something has occurred. For example, trap
information is sent:
◦ after a reboot of the module.
◦ when an NMS attempts to access agent information but either
− supplied an inappropriate community string or SNMP version number.
− is associated with a subnet to which access is disallowed.
Permission
Select Read Only if you wish to disallow any parameter changes by the NMS.
Site Name
Specify a string to associate with the physical module. This parameter is written into the
sysName SNMP MIB-II object and can be polled by an NMS. The buffer size for this field
is 128 characters.
Site Contact
Enter contact information for the module administrator. This parameter is written into the
sysContact SNMP MIB-II object and can be polled by an NMS. The buffer size for this
field is 128 characters.
Site Location
Enter information about the physical location of the module. This parameter is written into
the sysLocation SNMP MIB-II object and can be polled by an NMS. The buffer size for
this field is 128 characters.
The Configuration page also provides the following buttons.
Save Changes
When you click this button, any changes that you made on the Configuration page are
recorded in flash memory. However, these changes do not apply until the next reboot of
the module.
Undo Saved Changes
When you click this button, any changes that you made but were not committed by a
reboot of the module are undone.