Introduction

FortiOS Carrier provides all the features found on FortiGate units plus added features specific to carrier networks. These features are explained in this document and include dynamic profiles and groups, Multimedia messaging service (MMS) protection, and GPRS Tunneling Protocol (GTP) protection.

This chapter contains the following sections:

• Before you begin l How this guide is organized

Before you begin

Before you begin ensure that:

• You have administrative access to the web-based manager and/or CLI. l The Carrier-enabled FortiGate unit is integrated into your network. l The operation mode has been configured.

How this guide is organized

This FortiOS Handbook chapter contains the following sections:

Overview of FortiOS Carrier features provides an overview of the three major topics for FortiOS Carrier — Dynamic Profiles, MMS, and GTP.

Carrier web-based manager settings describes the web-based manager interface of FortiOS Carrier specific features.

MMS Security features describes FortiOS security features as they apply to MMS including MMS virus scanning, MMS file filtering, MMS content-based Antispam protection, and MMS DLP archiving.

Message flood protection describes setting thresholds to protect your MMS servers from receiving too many messages from the same sender.

Duplicate message protection describes setting thresholds to protect your MMS servers from receiving the same message from more than one sender.

Configuring GTP on FortiOS Carrier explains configuration of the more basic FortiOS Carrier GTP features.

GTP message type filtering explains this feature, and how to configure it on FortiOS Carrier.

GTP identity filtering explains this feature, and how to configure it on FortiOS Carrier.

Troubleshooting provides answer to common FortiOS Carrier GTP issues.

Overview

Overview of FortiOS Carrier features

FortiOS Carrier specific features include Multimedia messaging service (MMS) protection, and GPRS Tunneling Protocol (GTP) protection.

All FortiGate units, carrier-enabled or not, are capable of handling Stream Control Transmission Protocol (SCTP) traffic, which is a protocol designed for and primarily used in Carrier networks.

This section includes:

Overview

Registering FortiOS Carrier

MMS background

How FortiOS Carrier processes MMS messages

MMS protection profiles

Bypassing MMS protection profile filtering based on carrier endpoints

Applying MMS protection profiles to MMS traffic

GTP basic concepts

GPRS network common interfaces

Packet flow through the GPRS network SCTP