Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!ucsd!ucbvax!FTP.COM!jbvb
From: jbvb@FTP.COM (James B. Van Bokkelen)
Newsgroups: comp.protocols.tcp-ip
Subject: Re: tcp source port number assignment in new tcp connection
Message-ID: <9009071344.AA05047@ftp.com>
Date: 7 Sep 90 13:44:25 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Reply-To: jbvb@ftp.com
Organization: The Internet
Lines: 15


    Does anyone know which protocol on which system requires source ports to
    between 600 and 1024, and which protocol requires source port to be above
    1024.

4.3 bsd systems expect this of incoming connections for the 'r-protocols':
rlogin, rsh, rexec, etc.
    
    I assume it is safe for Telnet to connect to all systems with a source
    port number above 1024. Isn't it?

Yes.

James B. VanBokkelen		26 Princess St., Wakefield, MA  01880
FTP Software Inc.		voice: (617) 246-0900  fax: (617) 246-0901