Pekka Savola wrote: > Who said the addresses are *completely* revokated when the network > connectivity is intermittent? > > More likely than not, those address advertisements have a > lifetime longer than the duration of the downtime (both > preferred and valid in RFC2461 > terms!) -- and whoops, everything works like a charm still! You continue to ignore the fact that when the connection to the public network reestablishes with a different prefix, all existing internal connections will be dropped. The fact that multiparty apps can't blindly pass around addresses is not a valid justification for removing a technology which prevents disrupting internal use applications. Tony