strict-syn-check

Syntax

strict-syn-check

Hierarchy Level

[edit security flow tcp-session]

Release Information

Statement introduced in Release 9.4 of Junos OS.

Description

Enable the strict three-way handshake check for the TCP session. It enhances security by dropping data packets before the three-way handshake is done. By default, strict-syn-check is disabled.

Usage Guidelines

For configuration instructions and examples, see the Junos OS Security Configuration Guide.

Required Privilege Level

security—To view this statement in the configuration.

security-control—To add this statement to the configuration.