PPPoX

PPPoX (PPP over X)[1] designates a family of encapsulating communications protocols implementing Point-to-Point Protocol.

Specific implementations:

  • PPPoE: PPP over Ethernet – which can use 802.1q VLANs
  • PPPoA: PPP over ATM
  • PPTP: PPP encapsulated over GRE with a parallel control connection and some optional encryption
  • L2TP v2 (and its ancestor L2F): PPP sessions multiplexed within tunnels and transported over UDP

References

  1. ↑ "What Is PPP? Point-to-Point Protocol Explained (2025)". broadbandsearch.net. Retrieved 22 August 2025.
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