User guide

Configuring a BH Timing Slave for the

Destination

Configuring for the Destination

368

pmp-0229 (Mar 2013)

In the SNMP tab of the BHS, you may set the following parameters.

SNMP Community String 1

Specify a control string that can allow an Network Management Station (NMS) to access SNMP

information. No spaces are allowed in this string. The default string is Canopy.

SNMP Community String 1 Permissions

You can designate the SNMP Community String 1 to be the password for Prizm, for example, to

have read/write access to the module via SNMP, or for all SNMP access to the module to be read

only.

SNMP Community String 2 (Read Only)

Specify an additional control string that can allow an Network Management Station (NMS) to read

SNMP information. No spaces are allowed in this string. The default string is Canopy2. This

password will never authenticate a user or an NMS to read/write access.

The Community String value is clear text and is readable by a packet monitor. Additional

security derives from the configuration of the Accessing Subnet, Trap Address, and Permission

parameters.

Accessing IP / Subnet Mask

1 to 10

Specify the addresses that are allowed to send SNMP requests to this BHS. Prizm or the NMS has

an address that is among these addresses (this subnet). You must enter both

• The network IP address in the form xxx.xxx.xxx.xxx

• The CIDR (Classless Interdomain Routing) prefix length in the form /xx

For example

• the /16 in 198.32.0.0/16 specifies a subnet mask of 255.255.0.0 (the first 16 bits in the address

range are identical among all members of the subnet).

• 192.168.102.0 specifies that any device whose IP address is in the range 192.168.102.0 to

192.168.102.254 can send SNMP requests to the BHS, presuming that the device supplies the

correct Community String value.

The default treatment is to allow all networks access (set to 0). For more information on CIDR,

execute an Internet search on “Classless Interdomain Routing.” You are allowed to specify as

many as 10 different accessing IP address, subnet mask combinations.