Just a reminder to ns-users, the correct address for this mailing list is ns-users@isi.edu There are still a fair number of messages to ns-users@mash.cs.berkeley.edu. We will reconfigure that address to bounce messages by the end of this year. For information about subscribing or unsubscribing to ns-users, see <http://www.isi.edu/nsnam/ns/ns-lists.html>. -John Heidemann