
21-21
Cisco Security Appliance Command Line Configuration Guide
OL-6721-01
Chapter 21 Applying Application Layer Protocol Inspection
Managing GTP Inspection
The system enters GTP map configuration mode and the CLI prompt changes as in the following
example:
hostname(config-gtp-map)#
hostname(config-gtp-)# exit
hostname(config)#
Step 5 (Optional) Change the default configuration as required by entering any of the supported GTP map
configuration commands, summarized in Table 21-3.
The default GTP map is used when you enable GTP without specifying a GTP map. This default GTP
map is preconfigured with the following default values:
• timeout tunnel 0:01:00
• request-queue 200
• timeout gsn 0:30:00
• timeout pdp-context 0:30:00
• timeout request 0:01:00
• timeout signaling 0:30:00
• tunnel-limit 500
Step 6 Name the policy map by entering the following command:
hostname(config-gtp-)# exit
hostname(config)# policy-map
policy_map_name
Replace policy_map_name with the name of the policy map, as in the following example:
hostname(config)# policy-map inbound_policy
The CLI enters the policy map configuration mode and the prompt changes accordingly, as follows:
hostname(config-pmap)#
Step 7 Specify the traffic class defined in Step 2 to be included in the policy may by entering the following
command:
hostname(config-pmap)# class
class_map_name
For example, the following command assigns the gtp_port traffic class to the current policy map:
hostname(config-pmap)# class gtp_port
The CLI enters the policy map class configuration mode and the prompt changes accordingly, as follows:
hostname(config-pmap-c)#
Step 8 To enable GTP application inspection using a GTP map, enter the following command:
hostname(config-pmap-c)# inspect gtp [
gtp_map_name
]
The default GTP map is used when you enable GTP without specifying a GTP map. To use a different
GTP map, replace gtp_map_name with the GTP map that you want to use. For example, the following
command causes the security appliance to use the GTP map created in the previous steps.
hostname(config-pmap-c)# inspect gtp inbound_gtp
Step 9 Return to policy map configuration mode by entering the following command:
hostname(config-pmap-c)# exit
hostname(config-pmap)#
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