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TCP/IP port numbers
The WinBatch Internet Winsock extender will only make a TCP connection to a port. It will not make a UDP connection.Here is a list of known pre-assigned ports for the TCP/IP network protocols that use TCP protocol. Note that this is not an complete list, just the ones we know about.
Note: If perchance I was going to use the sListen and sAccept functions in the Internet Winsock DLL, and needed a port to listen on, I would choose a port betwixt 900 and 999, using the theory that no one would really want to connect to my conputer on those ports anyway.
Note also that Windows itself uses various ports for its own network communications, but I think these are all well below the 900 range.
In general ports between 1000 and 65535 are used as a pool the the Windows winsock dll automagically pulls from when it needs a port for something or other.
Different types of Port Numbers for Sockets 7 echo tcp udp 9 discard tcp udp 11 systat tcp 13 daytime tcp udp 15 netstat tcp 17 qotd tcp udp 19 chargen tcp udp 20 ftp-data tcp 21 ftp tcp 23 telnet tcp 25 smtp tcp 37 time tcp udp 39 rlp udp 42 name tcp udp 43 whois tcp 53 domain tcp udp 57 mtp tcp 67 bootp udp 69 tftp udp 77 rje tcp 79 finger tcp 80 http tcp 87 link tcp 95 supdup tcp 101 hostnames tcp 102 iso-tsap tcp 103 dictionary tcp 104 x400-snd tcp 105 csnet-ns tcp 109 pop tcp 110 pop3 tcp 111 portmap tcp udp 113 auth tcp 115 sftp tcp 117 path tcp 119 nntp tcp 123 ntp udp 137 nbname udp 138 nbdatagram udp 139 nbsession tcp 144 NeWS tcp 153 sgmp udp 158 tcprepo tcp 161 snmp udp 162 snmp-trap udp 170 print-srv tcp 175 vmnet tcp 315 load udp 400 vmnet0 tcp 443 https tcp 500 sytek udp 512 exec tcp 512 biff udp 513 login tcp 513 who udp 514 shell tcp 514 syslog udp 515 printer tcp 517 talk udp 518 ntalk udp 520 efs tcp 520 route udp 525 timed udp 526 tempo tcp 530 courier tcp 531 conference tcp 531 rvd-control udp 532 netnews tcp 533 netwall udp 540 uucp tcp 543 klogin tcp 544 kshell tcp 550 new-rwho udp 556 remotefs tcp 560 rmonitor udp 561 monitor udp 600 garcon tcp 601 maitrd tcp 602 busboy tcp 700 acctmaster udp 701 acctslave udp 702 acct udp 703 acctlogin udp 704 acctprinter udp 705 acctinfo udp 706 acctslave2 udp 707 acctdisk udp 750 kerberos tcp udp 751 kerberos_master tcp udp 752 passwd_server udp 753 userreg_server udp 754 krb_prop tcp 888 erlogin tcp
Article ID: W12615
Filename: TCP-IP Port Definitions.txt
File Created: 1999:04:15:16:48:26
Last Updated: 1999:04:15:16:48:26