CHAPTER14 Security
Mediant 1000 Gateway & E-SBC | User's Manual
Reason
Description Syslog String
Abnormal Flow
Requests and responses without a matching
transaction user (except ACK requests)
flow-no-match-tu
Requests and responses without a matching
transaction (except ACK requests)
flow-no-match-transaction
Configuring SIP Response Codes to Exclude from IDS
You can specify SIP response codes (reject reasons) that you want the IDS mechanism to ignore
in its' count as reasons for SIP-dialog establishment failures.
➢ To configure SIP responses to exclude from IDS:
1. Open the IDS General Settings page (Setup menu > Signaling & Media tab > Intrusion
Detection folder > IDS General Settings).
2. In the 'Excluded Response Codes' field, enter the SIP response codes that you want ignored
by IDS.
Figure 14-1: Configuring SIP Response Codes to Exclude from IDS
3. Click Apply.
● The parameter applies only to rejected responses received from the upstream
server; not rejected responses generated by the device (except for 404).
● The response codes 401 and 407 are considered authentication failures and thus,
are not applicable to this parameter.
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