For details about port numbers, see TCP/IP port ... SIP 5060 VoIP (Internet phone) DNS 53 Find IP address SMTP 25 Internet mail POP3 110 POP mailbox IMAP 143 IMAP mailbox Telnet 23 Remote login ...
Internet services are identified by a standard port number; for example ... to direct Web/HTTP packets (port 80 traffic) to the IP address of the Web server in the local network (LAN).
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