Port 1701 UDP is associated with which tunneling protocols?

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Multiple Choice

Port 1701 UDP is associated with which tunneling protocols?

Explanation:
Port 1701 UDP is the standard transport for Layer 2 tunneling protocols. L2F, Cisco’s Layer 2 Forwarding, uses UDP 1701 to carry the tunneled PPP frames. Layer 2 Tunneling Protocol was designed to unify L2F and PPTP, and it also uses UDP 1701 for its tunneling control messages. Deployments often couple L2TP with IPsec for encryption, but the underlying port used for the tunnel itself remains 1701. Since both L2F and L2TP rely on this port, the option that lists both correctly reflects the protocols associated with UDP port 1701.

Port 1701 UDP is the standard transport for Layer 2 tunneling protocols. L2F, Cisco’s Layer 2 Forwarding, uses UDP 1701 to carry the tunneled PPP frames. Layer 2 Tunneling Protocol was designed to unify L2F and PPTP, and it also uses UDP 1701 for its tunneling control messages. Deployments often couple L2TP with IPsec for encryption, but the underlying port used for the tunnel itself remains 1701. Since both L2F and L2TP rely on this port, the option that lists both correctly reflects the protocols associated with UDP port 1701.

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