fwknop has a cache to prevent replay attacks, that plus the fact the packets are only valid for a certain length of time pretty much thwarts this. Remember, fwk

fwknop has a cache to prevent replay attacks, that plus the fact the packets are only valid for a certain length of time pretty much thwarts this. Remember, fwknop is _in addition_ to your existing security practices, it is not the only "password."