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Software Secure Firewall Threat Defense
Platform Secure Firewall Threat Defense Virtual
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Advanced Network Analysis and Preprocessing Application Layer Preprocessors The GTP Preprocessor GTP Preprocessor Rules

Last updated: Jul 29, 2025

GTP Preprocessor Rules

You must enable the GTP preprocessor rules in the following table if you want them to generate events and, in an inline deployment, drop offending packets.

Table 1. GTP Preprocessor Rules

Preprocessor Rule GID:SID

Description

143:1

Generates an event when the preprocessor detects an invalid message length.

143:2

Generates an event when the preprocessor detects an invalid information element length.

143:3

Generates an event when the preprocessor detects information elements that are out of order.

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