FortiCarrier Troubleshooting

Troubleshooting This section offers troubleshooting options for Carrier-related issues. This section includes: FortiOS Carrier diagnose commands Applying IPS signatures to IP packets within GTP-U tunnels GTP packets are not moving along your network FortiOS Carrier diagnose commands This section includes diagnose commands specific to FortiOS Carrier features such as GTP. GTP related diagnose commands This […]

FortiCarrier SCTP Concepts

SCTP Concepts As of FortiOS version 5.0, the FortiGate natively handles SCTP (Stream Control Transport Protocol) traffic, as an alternative to TCP and UDP for use in Carrier networks. The FortiGate handles SCTP as if it would any other traffic. Overview SCTP is a connection-oriented transport protocol that overcomes some of the limitations of both […]

FortiCarrier GTP identity filtering

GTP identity filtering FortiOS Carrier supports a number of filtering methods based on subscriber identity such as APN filtering, IMSI filtering, and advanced filtering. This section includes: IMSI on carrier networks The International Mobile Subscriber Identity (IMSI) number is central to identifying users on a carrier network. It is a unique number that is assigned […]

FortiCarrier GTP message type filtering

GTP message type filtering FortiOS Carrier supports message filtering in GTP by the type of message. This section includes: Common message types on carrier networks Carrier networks include many types of messages — some concern the network itself, others are content moving across the network, and still others deal with handshaking, billing, or other administration […]

Configuring GTP on FortiOS Carrier

Configuring GTP on FortiOS Carrier Configuring GTP support on FortiOS Carrier involves configuring a number of areas of features. GTP support on the Carrier-enabled FortiGate unit The FortiCarrier unit needs to have access to all traffic entering and exiting the carrier network for scanning, filtering, and logging purposes. This promotes one of two configurations — […]

FortiCarrier Anti-Overbilling options

Anti-Overbilling options You can configure the FortiOS Carrier firewall to prevent over billing subscribers for traffic over the. To enable anti-overbilling, you must configure both the Gn/Gp firewall and the Gi firewall. Expand Anti-Overbilling in the GTP profile to reveal these settings. Anti-Overbilling Gi Firewall IP Address The IP address of the unit’s interface configured […]