Randy Bush wrote: > it took five years of war to get > rid of the tla/sla crap. As backbone operators do not want to have large routing tables, TLA is a good idea. As you can see, TLA of IPv4 is /24, though there is no NLA. > and look at the /64 religion today[0]. It was /80, until I pointed out that IEEE1394 MAC address is 64bit long. Masataka Ohta