VRRP TTL

Hi Sprout,

This is mainly for security purposes. Normally, there are two modes for the VRRP security defense.

1. TTL check

2. Packet authentication (simple or MD5)

The TTL check (must be 255) is simple and efficient. It prevents VRRP packet spoofing attacks on different network segments. (If VRRP packets are transmitted across network segments, the TTL value will not be 255.)

Hope to help you!