>Steve, > >According to RFC-791 (ftp://ftp.isi.edu/in-notes/rfc791.txt), all that is >contained in the IP header with respect to addresses is the source address >and the destination address, both 32 bit fields. The routers have the task >of figuring out where to send things based on the routing tables. > >When you do a 'show ip route' on your routers, you can find the mask.
Or ask the Lone Ranger. "Who was that masked man?" At a more serious level, masks are transmitted only in classless routing protocols (or in special cases such as DHCP). Classful routing protocols either assume "natural masks" of /8, /16, or /24, or obtain masks from local configuration information. > >Quick tip: >You don't need any drugs for sleeping. Just read some of the RFCs. :-) > >Ken If you consider RFCs sedating, try ISO documents if you are in search of surgical anesthesia. Actually, some RFCs, besides the April 1 specials, are quite decently written. The RIP document is very much worthwhile for beginners at routing. I usually try to sneak a little humor into mine. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=29784&t=29182 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
