Yo Daniel! On Wed, 24 Jul 2002, Daniel Senie wrote: > RFC3168 is dated September 2001. That's pretty recent. RFC 793 is dated September 1981. If the routers/firewalls handled packets per RFC 793 there would be no problem. Just set them to zero and pass them along. The reserved bits were first used for ECN in RFC 2481 dated January 1999. If the firewalls handled packets per RFC 2481 there would be no problem. RFC 3168 refined the handling of ECN in September 2001. If the firewalls handled packets per RFC 3168 there would be no problem. It is only those router/firewalls that IGNORED all advice on what to do with those bits since 1981 that have a problem. RGDS GARY --------------------------------------------------------------------------- Gary E. Miller Rellim 20340 Empire Blvd, Suite E-3, Bend, OR 97701 gem@rellim.com Tel:+1(541)382-8588 Fax: +1(541)382-8676