> We have to work with what we have here, that unfortunately means original dns plus the srv record. I never cease to be amazed at people who insist on taking things that basically work fairly well and replacing them with more complex mechanisms that are known to work more slowly and less reliably. Probably the worst problem with destination port numbers is that there aren't enough of them. That's probably something that needs to be addressed in TCP and UDP, but a simple extension to each would do the trick. SRV provides fairly limited utility in exchange for the number of problems it presents. Keith _______________________________________________ Ietf@xxxxxxxx https://www1.ietf.org/mailman/listinfo/ietf