Harald, Harald Tveit Alvestrand > This seems to lead me to one of two conclusions: > - Address lookup is significantly more complex in the > presence of site-local than if only global-scoped > addresses are used > - I missed something.
I think you missed the fact the dual-headed DNS you mentioned is in use in many organizations even the ones that have only global-scoped addresses. One of the main reasons is that networks administrators don't want their DNS servers to resolve the entire network if the request comes from the outside. In other words, if foo.example.com is a secure host, it makes a lot of sense to configure the DNS servers to resolve it if the request comes from within the administrative boundaries of the site, and *not* resolve it if the request comes from the outside. Therefore, the complexity of administering the dual-headed DNS is not a by-product of the use of site locals, but a desire of the administrator to limit lookups. Michel. -------------------------------------------------------------------- IETF IPng Working Group Mailing List IPng Home Page: http://playground.sun.com/ipng FTP archive: ftp://playground.sun.com/pub/ipng Direct all administrative requests to [EMAIL PROTECTED] --------------------------------------------------------------------
