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Understanding GTPv2 Traffic Logging
You can use the console or syslog to view GPRS tunneling protocol version 2 (GTPv2) traffic logs. You can configure the device to log GTPv2 packets based on their status. GTPv2 packet status can be any of the following:
- Forwarded—GTPv2 packet was forwarded because it was valid.
- State-invalid—GTPv2 packet was dropped because it failed stateful inspection or a sanity check. In case of a sanity check failure, the packet is marked as sanity.
- Prohibited—GTPv2 packet was dropped because it failed message length, message type, or International Mobile Subscriber Identity (IMSI) prefix checks.
- Rate-limited—GTPv2 packet was dropped because it exceeded the maximum rate limit of the destination GPRS support node (GSN).
By default, GTPv2 logging is disabled on the device. You can use the set security gprs gtp profile name log configuration statement to enable GTPv2 logging on the device.
