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OSI/Port nums


Application 7- End user layer
Presentation 6- Syntax, Encrypt/decrypt
Session 5- Sync/send, Logical ports
Transport 4- TCP, host-to-host, flow control
Network 3- Packets, contains IP addresses
Data Link 2- Frames, contains MAC address
Physical 1- Physical Structure
20 FTP data
21 FTP control
22 SSH
23 Telnet
53 DNS
110 POP3
123 NTP
143 IMAP
161 SNMP
POP3? Mail is downloaded locally then deleted from server upon successful retrieval
IMAP? Mail is not deleted upon retrieval, and is located on a central server
Exchange? Microsoft email software running on a server, synchronized between nodes
3389 RDP
43 WhoIs
H.323? Components- terminals, gateways, and gatekeepers -requires more configuration on the gateway, compared to MGCP
SIP(Session Initiation Protocol)? -uses a request/response method to establish communications between various components in the network
Media Gateway Control Protocol (MGCP)? -enables a call agent (media gateway controller) to remotely control and manage voice and data communication devices at the edge of multiservice IP packet networks
Skinny Client Control Protocol (SCCP) -uses Cisco-proprietary messages to communicate between IP devices and Cisco CallManager
Extensible Messaging and Presence Protocol (XMPP) -a communications protocol for message-oriented middleware based on XML
Created by: generous_sausage