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Chapter 8

8-8

• trapcommunity <community string>

This sets the community string (password) to use for sending traps. If

set, it also sends a trap upon startup: coldStart(0).

• authtrapenable <integer>

Setting this variable to 1 enables traps to be sent for authentication

warnings. Setting it to 2 disables it.

• data_cache_duration <seconds>

This is the time in seconds during which data is cached. The default

value for this setting is one second.

Note

A trapport line controls all trapsink lines that follow it until another

trapport line appears. Therefore, to change the trap port for a trap sink, the

new trapport line must be inserted before the trap sink’s trapsink line, with

no other trapport lines in between. The same logic follows for

trapcommunity lines.

/etc/snmptrap.conf

This configuration file includes OID, trap, and regular expression mappings.

The configuration file specifies whether to send a specific trap based on a

regular expression. An excerpt of the configuration file is shown in

Figure 8.2.

Some of the OIDs have been permanently mapped to BIG-IP specific

events. The OIDs that are permanently mapped for the BIG-IP include:

• Root login

• Request denial

•System reset

• Service up

• Service down

# Default traps.

.1.3.6.1.4.1.3375.1.1.110.2.6 (ROOT LOGIN) ROOT LOGIN

.1.3.6.1.4.1.3375.1.1.110.2.5 (denial) REQUEST DENIAL

.1.3.6.1.4.1.3375.1.1.110.2.4 (BIG-IP Loading) SYSTEM RESET

.1.3.6.1.4.1.3375.1.1.110.2.3 (Service detected UP) SERVICE UP

.1.3.6.1.4.1.3375.1.1.110.2.2 (Service detected DOWN) SERVICE DOWN

#.1.3.6.1.4.1.3375.1.1.110.2.1 (error) Unknown Error

#.1.3.6.1.4.1.3375.1.1.110.2.1 (failure) Unknown Failure

Figure 8.2 Excerpt from the /etc/snmptrap.conf file

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Dell 3-DNS Spezifikationen Seite 332