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Device Manager Guide, Cisco ACE 4700 Series Application Control Engine Appliance
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Chapter 12 Configuring Traffic Policies
Setting Match Conditions for Class Maps
Table 12-14 Layer 7 SIP Deep Packet Inspection Class Map Match Conditions
Match Condition Description
Called Party The destination or called party in the URI of the SIP To header is used to establish a match
condition.
In the Called Party field, enter a regular expression that identifies the called party in the URI of
the SIP To header for this match condition. Valid entries are unquoted text strings with no spaces
and a maximum of 255 alphanumeric characters. The ACE supports regular expressions for
matching string expressions. Table 12-33 lists the supported characters that you can use for
matching string expressions.
Calling Party The source or calling party in the URI of the SIP From header is used to establish a match
condition.
In the Calling Party field, enter a regular expression that identifies the called party in the URI of
the SIP To header for this match condition. Valid entries are unquoted text strings with no spaces
and a maximum of 255 alphanumeric characters. The ACE supports regular expressions for
matching string expressions. Table 12-33 lists the supported characters that you can use for
matching string expressions.
IM Subscriber An IM (instant messaging) subscriber is used to establish a match condition.
In the IM Subscriber field, enter a regular expression that identifies the IM subscriber for this
match condition. Valid entries are unquoted text strings with no spaces and a maximum of 255
alphanumeric characters. The ACE supports regular expressions for matching string expressions.
Table 12-33 lists the supported characters that you can use for matching string expressions.
Message Path A message coming from or transiting through certain SIP proxy servers is used to establish a match
condition.
In the Message Path field, enter a regular expression that identifies the SIP proxy server for this
match condition. Valid entries are unquoted text strings with no spaces and a maximum of 255
alphanumeric characters. The ACE supports regular expressions for matching string expressions.
Table 12-33 lists the supported characters that you can use for matching string expressions.
SIP Content Length The SIP message body length is used to establish a match condition.
1. In the Content Operator field, confirm that Greater Than is selected.
2. In the Content Length field, enter the maximum size of a SIP message body in bytes that the
ACE is to allow without performing SIP protocol inspection. If a SIP message exceeds the
specified value, the ACE performs SIP protocol inspection as defined in an associated policy
map. Valid entries are integers from 0 to 65534 bytes.
SIP Content Type The content type in the SIP message body is used to establish a match condition.
In the Content Type field, enter the a regular expression that identifies the content type in the SIP
message body to use for this match condition. Valid entries are unquoted text strings with no
spaces and a maximum of 255 alphanumeric characters. The ACE supports regular expressions for
matching string expressions. Table 12-33 lists the supported characters that you can use for
matching string expressions.
SIP Request Method A SIP request method is used to establish a match condition.
In the Request Method field, select the request method that is to be matched.
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