Cisco ASA 5508-X, Руководство по настройке

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14-7
Cisco ASA Series Firewall CLI Configuration Guide
Chapter 14 Inspection for Voice and Video Protocols
H.323 Inspection
Where class_map_name is the name of the class map. The match-all keyword is the default, and
specifies that traffic must match all criteria to match the class map. The match-any keyword
specifies that the traffic matches the class map if it matches at least one of the criteria. The CLI
enters class-map configuration mode, where you can enter one or more
match commands.
b. (Optional) To add a description to the class map, enter the following command:
hostname(config-cmap)# description string
Where string is the description of the class map (up to 200 characters).
c. Specify the traffic on which you want to perform actions using one of the following match
commands. If you use a match not command, then any traffic that does not match the criterion in
the match not command has the action applied.
•
match [ not ] called-party regex { regex_name | class class_name }—Matches the called party
against the specified regular expression or regular expression class.
• match [ not ] calling-party regex { regex_name | class class_name }—Matches the calling party
against the specified regular expression or regular expression class.
•
match [ not ] media-type { audio | data | video }—Matches the media type.
Step 2 Create an H.323 inspection policy map:
hostname(config)# policy-map type inspect h323 policy_map_name
hostname(config-pmap)#
Where the policy_map_name is the name of the policy map. The CLI enters policy-map configuration
mode.
Step 3 (Optional) To add a description to the policy map, enter the following command:
hostname(config-pmap)# description string
Step 4
To apply actions to matching traffic, perform the following steps.
You can specify multiple class or match commands in the policy map. For information about the order
of class and match commands, see How Multiple Traffic Classes are Handled, page 12-4 .
a.
Specify the traffic on which you want to perform actions using one of the following methods:
• If you created an H.323 class map, specify it by entering the following command:
hostname(config-pmap)# class class_map_name
hostname(config-pmap-c)#
•
Specify traffic directly in the policy map using one of the match commands described for H.323
class maps. If you use a match not command, then any traffic that does not match the criterion
in the match not command has the action applied.
b. Specify the action you want to perform on the matching traffic by entering the following command:
hostname(config-pmap-c)# { drop [ log ] | drop-connection | reset }
The drop keyword drops the packet. For media type matches, you can include the log keyword to
send a system log message.
The drop-connection keyword drops the packet and closes the connection. This option is available
for called or calling party matching.
The reset keyword drops the packet, closes the connection, and sends a TCP reset to the server
and/or client. This option is available for called or calling party matching.
Step 5 To configure parameters that affect the inspection engine, perform the following steps:
a.
To enter parameters configuration mode, enter the following command: