Other Related Protocols

IMAP (Internet Message Access Protocol)

• Email protocol used to retrieve and manage emails directly on a mail server.
• Emails remain stored on the server.
• Allows access to the same mailbox from multiple devices.
• Supports synchronization and folder organization.
• Ports:
• 143 (TCP)
• 993 (TCP) – Secure IMAP

SIP (Session Initiation Protocol)

• Signaling protocol used to initiate and manage communication sessions.
• Used in VoIP, video calls, and messaging applications.
• Handles session setup, modification, and termination.
• Works with RTP to transmit media.
• Ports:
• 5060 (TCP/UDP)
• 5061 (TLS – secure)

RTP (Real-Time Transport Protocol)

• Used to transmit real-time audio and video data over networks.
• Common in video conferencing and streaming.
• Provides sequencing and timestamps for media packets.
• Works together with SIP for communication sessions.
• Port: Dynamic UDP ports (usually 1024–65535)

PPTP (Point-to-Point Tunneling Protocol)

• VPN protocol used for secure remote access connections.
• Encapsulates PPP traffic inside IP packets.
• Allows encrypted communication over public networks.
• Less secure than modern VPN protocols.
• Port: 1723 (TCP)

TFTP (Trivial File Transfer Protocol)

• Lightweight file transfer protocol used for simple transfers.
• Uses UDP instead of TCP.
• Often used for network booting and firmware transfers.
• Provides minimal functionality and no authentication.
• Port: 69 (UDP)

RLP (Resource Location Protocol)

• Protocol used to locate network resources such as printers and servers.
• Uses broadcast queries to discover available resources.
• Helps users access shared network devices.
• Used mainly in distributed network environments.
• Port: No standard port.

✔ Learning Tip

Create your own lab environment using virtual machines or Docker. This allows you to safely test tools and techniques.