set protocols mpls ldp neighbor ttl-security disable

The set protocols mpls ldp neighbor ttl-security disable command disables Generalized TTL Security Mechanism (GTSM), as specified in RFC 5082.

The delete protocols mpls ldp neighbor ttl-security disable command deletes the configuration.

Command Syntax

set protocols mpls ldp neighbor <ip> ttl-security disable

delete protocols mpls ldp neighbor <ip> ttl-security

Parameter

Usage Guidelines

Disabling TTL security means that the router will not enforce TTL checks for packets from this neighbor, potentially making the system less secure. TTL security is often used to mitigate spoofing attacks where an attacker attempts to establish an LDP session by sending fake packets with a manipulated TTL value.

This might be necessary if compatibility with older or certain specific devices that do not support TTL security is required.

Example

• Disable Generalized TTL Security Mechanism (GTSM).