To Q1, my consideration is: sq number is increased in every message. It seems not right for session, especially when keepalive flag is used.
To Q4, the router seems free to choose a IP from your listed range, it is multi homed.
all these questions looks I need a manual at hand.
To Q4, the router seems free to choose a IP from your listed range, it is multi homed.
all these questions looks I need a manual at hand.