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Cisco ASA 5500 Series Configuration Guide using ASDM
Chapter 48 Configuring Inspection for Voice and Video Protocols
SIP Inspection
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Regular Expression—Lists the defined regular expressions to match.
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Manage—Opens the Manage Regular Expressions dialog box, which lets you configure regular
expressions.
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Regular Expression Class—Lists the defined regular expression classes to match.
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Manage—Opens the Manage Regular Expression Class dialog box, which lets you configure
regular expression class maps.
• Message Path Criterion Values—Specifies to match a SIP Via header. Applies the regular expression
match.
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Regular Expression—Lists the defined regular expressions to match.
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Manage—Opens the Manage Regular Expressions dialog box, which lets you configure regular
expressions.
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Regular Expression Class—Lists the defined regular expression classes to match.
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Manage—Opens the Manage Regular Expression Class dialog box, which lets you configure
regular expression class maps.
• Request Method Criterion Values—Specifies to match a SIP request method.
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Request Method—Specifies a request method: ack, bye, cancel, info, invite, message, notify,
options, prack, refer, register, subscribe, unknown, update.
• Third-Party Registration Criterion Values—Specifies to match the requester of a third-party
registration. Applies the regular expression match.
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Regular Expression—Lists the defined regular expressions to match.
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Manage—Opens the Manage Regular Expressions dialog box, which lets you configure regular
expressions.
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Regular Expression Class—Lists the defined regular expression classes to match.
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Manage—Opens the Manage Regular Expression Class dialog box, which lets you configure
regular expression class maps.
• URI Length Criterion Values—Specifies to match a URI in the SIP headers greater than specified
length.
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URI type—Specifies to match either SIP URI or TEL URI.
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Greater Than Length—Length in bytes.
• Multiple Matches—Specifies multiple matches for the SIP inspection.
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SIP Traffic Class—Specifies the SIP traffic class match.
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Manage—Opens the Manage SIP Class Maps dialog box to add, edit, or delete SIP Class Maps.
• Actions—Primary action and log settings.
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Action—Drop packet, drop connection, reset, log. Note: Limit rate (pps) action is available for
request methods invite and register.
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Log—Enable or disable.
Modes
The following table shows the modes in which this feature is available: