Masataka, On Mon, 17 Mar 2003, Masataka Ohta wrote: > Pierre; > > > Hrm, like in the dns system? > > In a sense, yes. It is necessary to involve DNS for, say, ID->locator > mapping. > > However, a problem of using a domain name as an identifier is that not > all the packets contain the domain name. [snip] A reverse lookup can provide it. Pierre.