On Wednesday, 2004-12-29 at 13:43 EST, Joe Abley <[EMAIL PROTECTED]> wrote: > However, there are a growing throng of broadband users who have PPTP or > other encaps between them and the world,
Encapsulated traffic (vpns, etc.) is indeed what I see as the largest contributor to connectivity problems for large packets. > and who are able to get along > just fine by reducing the advertised MSS in their TCP stack. But that only affects tcp traffic - it does nothing to help other protocols. In other words, it's a fairly lame circumvention that happens to do the job for most usage (but assuming it solves the problem often results in seemingly inexplicable failures when other protocols happen to be used). The better solution is to ensure that PMTUD works correctly for your network, and get on the case of any correspondent or provider for which it doesn't. Tony Rall
