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Cisco ASA Series Firewall ASDM Configuration Guide
Chapter14 Configuring Inspection for Management Application Protocols
GTP Inspection
Signaling—Lets you change the default for the maximum period of inactivity before a GTP
signaling is removed. The default is 30 minutes. Timeout is in the format hh:mm:ss, where hh
specifies the hour, mm specifies the minutes, and ss specifies the seconds. A value 0 means never
tear down.
Tunnel—Lets you change the default for the maximum period of inactivity for the GTP tunnel.
The default is 1 hour. Timeout is in the format hh:mm:ss, where hh specifies the hour, mm
specifies the minutes, and ss specifies the seconds. A value 0 means never tear down Request
timeout—Specifies the GTP Request idle timeout.
T3-Response timeout—Specifies the maximum wait time for a response before removing the
connection.
IMSI Prefix Filtering—Tab that lets you configure the IMSI prefix filtering for the GTP inspect map.
Mobile Country Code—Defines the non-zero, three-digit value identifying the mobile country
code. One or two-digit entries will be prepended by 0 to create a three-digit value.
Mobile Network Code—Defines the two or three-digit value identifying the network code.
Add—Add the specified country code and network code to the IMSI Prefix table.
Delete—Deletes the specified country code and network code from the IMSI Prefix table.
Inspections—Tab that lets you configure the GTP inspect maps.
Match Type—Shows the match type, which can be a positive or negative match.
Criterion—Shows the criterion of the GTP inspection.
Value—Shows the value to match in the GTP inspection.
Action—Shows the action if the match condition is met.
Log—Shows the log state.
Add—Opens the Add GTP Inspect dialog box to add an GTP inspection.
Edit—Opens the Edit GTP Inspect dialog box to edit an GTP inspection.
Delete—Deletes an GTP inspection.
Move Up—Moves an inspection up in the list.
Move Down—Moves an inspection down in the list.
Add/Edit GTP Map
Configuration> Global Objects > Inspect Maps > GTP > GTP Inspect Map > Add/Edit GTP Map
The Add/Edit GTP Inspect dialog box lets you define the match criterion and value for the GTP inspect
map.
Fields
Match Type—Specifies whether traffic should match or not match the values.
For example, if No Match is selected on the string “example.com,” then any traffic that contains
“example.com” is excluded from the class map.
Criterion—Specifies which criterion of GTP traffic to match.
Access Point Name—Match on access point name.
Message ID—Match on the message ID.