Brocade FastIron Ethernet Switch Administration Guide - Manual (Page 32)

NOTE
To add and modify "get" (read-only) and "set" (read-write) community strings, refer to "Security
Access" chapter in the FastIron Ethernet Switch Security Configuration Guide .
Specifying an SNMP trap receiver
You can specify a trap receiver to ensure that all SNMP traps sent by the Brocade device go to the
same SNMP trap receiver or set of receivers, typically one or more host devices on the network. When
you specify the host, you also specify a community string. The Brocade device sends all the SNMP
traps to the specified hosts and includes the specified community string. Administrators can therefore
filter for traps from a Brocade device based on IP address or community string.
When you add a trap receiver, the software automatically encrypts the community string you associate
with the receiver when the string is displayed by the CLI. If you want the software to show the
community string in the clear, you must explicitly specify this when you add a trap receiver. In either
case, the software does not encrypt the string in the SNMP traps sent to the receiver.
To specify the host to which the device sends all SNMP traps, use one of the following methods.
To add a trap receiver and encrypt the display of the community string, enter commands such as the
following.
To specify an SNMP trap receiver and change the UDP port that will be used to receive traps, enter a
command such as the following.
device(config)# snmp-server host 10.2.2.2 0 mypublic port 200
device(config)# write memory
Syntax: snmp-server host ip-addr { 0 | 1 } string [ port value ]
The ip-addr parameter specifies the IP address of the trap receiver.
The 0 | 1 parameter specifies whether you want the software to encrypt the string (1 ) or show the
string in the clear (0 ). The default is 0 .
The string parameter specifies an SNMP community string configured on the Brocade device. The
string can be a read-only string or a read-write string. The string is not used to authenticate access to
the trap host but is instead a useful method for filtering traps on the host. For example, if you configure
each of your Brocade devices that use the trap host to send a different community string, you can
easily distinguish among the traps from different Brocade devices based on the community strings.
The command in the example above adds trap receiver 10.2.2.2 and configures the software to
encrypt display of the community string. When you save the new community string to the startup-
config file (using the write memory command), the software adds the following command to the file.
snmp-server host 10.2.2.2 1
encrypted-string
To add a trap receiver and configure the software to encrypt display of the community string in the CLI,
enter commands such as the following.
device(config)# snmp-server host 10.2.2.2 0 FastIron-12
device(config)# write memory
The port value parameter allows you to specify which UDP port will be used by the trap receiver. This
parameter allows you to configure several trap receivers in a system. With this parameter, a network
management application can coexist in the same system. Brocade devices can be configured to send
copies of traps to more than one network management application.
Specifying an SNMP trap receiver
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