3Com VCX v7111 User Manual page 370

To configure the trap managers table use:
The Embedded Web Server, see
The ini file, see Configuration of Community Strings via the
SNMP, see Configuration of Community Strings via
Configuring Trap Manger using Host Name
One of the five available SNMP managers can be defined using a FQDN. In the current
version, this option can only be configured using the ini file (SNMPTrapManagerHostName).
The gateway tries to resolve the host name at start up. Once the name is resolved (IP is
found), the resolved IP address replaces the last entry in the trap manager table (defined by
the parameter SNMPManagerTableIP_x) and the last trap manager entry of
snmpTargetAddrTable in the snmpTargetMIB. The port is 162 (unless specified otherwise),
the row is marked as used and the sending is enabled.
When using 'host name' resolution, any changes made by the user to this row in either MIBs
are overwritten by the gateway when a resolving is redone (once an hour).
Note that several traps may be lost until the resolving is complete.
Configuring Trap Managers using the ini File
In the V7111 ini file, the parameters below can be set to enable or disable the sending of
SNMP traps. Multiple trap destinations can be supported on the device by setting multiple
trap destinations in the ini file.
SNMPManagerTrapSendingEnable_<x>: indicates whether or not traps are to be sent
to the specified SNMP trap manager. A value of '1' means that it is enabled, while a
value of '0' means disabled. <x> represents a number 0, 1, 2 which is the array element
index. Currently, up to five SNMP trap managers can be supported.
SNMPManagerTrapUser_<x>: indicates to send an SNMPv2 trap using the trap user
community string configured with the SNMPTrapCommunityString parameter. The user
may instead specify an SNMPv3 user name
Figure 139 presents an example of entries in a device ini file regarding SNMP. The device
can be configured to send to multiple trap destinations. The lines in the file below are
commented out with the ; at the beginning of the line. All of the lines below are commented
out since the first line character is a semi-colon.
Figure 139 Example of Entries in a Device ini file Regarding SNMP
; SNMP trap destinations
; The board maintains a table of trap destinations containing 5 ;rows. The
rows are numbered 0..4. Each block of 4 items below ;apply to a row in the
table.
; To configure one of the rows, uncomment all 4 lines in that ;block.
Supply an IP address and if necessary, change the port ;number.
; To delete a trap destination, set ISUSED to 0.
; -change these entries as needed
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Configuring the SNMP Managers
SNMP.
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