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Oracle SBC Security Guide
Reject actions may also indirectly generate SNMP traps. Two parameters in the session-router-config
define how many messages within a window of time cause the SBC to generate an SNMP trap.
reject-message-threshold defines the minimum number of message rejections allowed in the
reject-message-window time on the SBC (when using the SIP manipulation action reject) before
generating an SNMP trap.
reject-message-windowdefines the time in seconds that defines the window for maximum
message rejections allowed before generating an SNMP trap. This should be set to something like
30 seconds to a minute. If set too low traps may be missed.
The SBC tracks messages that have been flagged for rejection using the reject action type. In the show
sipd display, refer to the Rejected Messages category. Note that there is no distinction between requests
and responses.
SIP Status -- Period -- -------- Lifetime --------
Active High Total Total PerMax High
Sessions 0 0 0 538 211 38
Subscriptions 0 0 0 0 0 0
Dialogs 0 0 0 276 74 74
CallID Map 0 0 0 1076 422 386
Rejections - - 0 0 0
ReINVITEs - - 0 0 0
ReINV Suppress - - 0 0 0
Media Sessions 0 0 0 538 211 76
Media Pending 0 0 0 0 0 0
Client Trans 0 0 0 814 241 76
Server Trans 0 0 0 3626 366 193
Resp Contexts 0 0 0 538 211 193
Saved Contexts 0 0 0 0 0 0
Sockets 3 3 0 3 3 3
Req Dropped - - 0 0 0
DNS Trans 0 0 0 0 0 0
DNS Sockets 0 0 0 0 0 0
DNS Results 0 0 0 0 0 0
Rejected Msgs 0 0 0 200 108 108
SNMP support
apSysRejectedMessages (.1.3.6.1.4.1.9148.3.2.1.1.18.0)
o Number of messages rejected by the SBC due to matching criteria
apSysMgmtRejectedMesagesThresholdExeededTrap (.1.3.6.1.4.1.9148.3.2.6.0.57)
o The trap will be generated when the number of rejected messages exceeds the configured
threshold within the configured window.
apSysMgmtSipRejectionTrap (.1.3.6.1.4.1.9148.3.2.10.0.1)
o Generated when a SIP INVITE or REGISTRATION request fail.
Log Action
Since release S-C(X)6.2.0 a new action type called: “log” is available to all header manipulation rules.
When this action type is used, and a condition matching the manipulation rule arises, the SBC logs
information about the current message to a separate log file.
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