Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/18/84; site amdimage.UUCP Path: utzoo!watmath!clyde!burl!ulysses!mhuxr!mhuxt!houxm!vax135!cornell!uw-beaver!tektronix!zehntel!dual!vecpyr!amd!amdcad!amdimage!cmoore From: cmoore@amdimage.UUCP (chris moore) Newsgroups: net.ham-radio.packet Subject: Re: TCP Programmers Guide Message-ID: <823@amdimage.UUCP> Date: Thu, 12-Dec-85 16:47:27 EST Article-I.D.: amdimage.823 Posted: Thu Dec 12 16:47:27 1985 Date-Received: Thu, 19-Dec-85 03:40:26 EST References: <751@petrus.UUCP> Reply-To: cmoore@amdimage.UUCP (chris moore) Organization: AMDIMAGE, Sunnyvale, CA Lines: 32 In article <751@petrus.UUCP> karn@petrus.UUCP (Phil R. Karn) writes: > >Therefore it is possible to have several distinct connections established >at the same time to a single port on a given machine, as long as the >source sockets are distinct. Port numbers are used either through mutual >agreement, or more commonly when a "standard" service is involved, a "well >known port" number. For example, to obtain standard remote login service >(known as "telnet") one initiates a connection to TCP port 23; to send mail >using the Simple Mail Transfer Protocol (SMTP) one talks to port 25. >ARPA maintains port number lists and periodically publishes them. They will >also assign port numbers to a new application on request if it appears to be >of general interest. > This is the one part that bothers me, although maybe my fears are unjustified. If I want to use the network, I have to have a socket address assigned to me. Who will handle this? Will I have to wait weeks for somebody to assign a socket address? Is there a chance that "they" will decide that it's not in the "general interest" to give me a port number? Maybe I missed the whole point here, and if so, could someone please clarify this? Thanks muchly. Chris Moore -- Of course we have backup tapes. Do you want last year or the year before? Chris Moore (408) 749-4692 UUCP: {ucbvax,decwrl,ihnp4,allegra}!amdcad!amdimage!cmoore