PPPoE
Technology & Computing abbreviation · Networking
| Stands for | Point-to-Point Protocol over Ethernet |
|---|---|
| Categories | Technology & Computing |
PPPoE stands for Point-to-Point Protocol over Ethernet, a networking abbreviation.
Carries PPP sessions over Ethernet so DSL and some fiber ISPs can authenticate each subscriber with a username and password and assign an IP address. The customer's router establishes the session whenever it starts up.
Example: Enter the PPPoE username and password from your welcome letter on the router's WAN page.
Usage notes
Published as RFC 2516 in 1999. Its 8-byte header reduces the usable MTU from 1,500 to 1,492 bytes, which can break some websites unless MSS clamping is enabled. Many fiber ISPs have moved to plain DHCP-based connections instead. Pronounced letter by letter.
Related abbreviations
More networking abbreviations
- PAN – Personal area network
- PAT – Port address translation
- PDU – Protocol data unit
- PoE – Power over Ethernet
- PoP – Point of presence
- POP3 – Post Office Protocol version 3
- PPTP – Point-to-Point Tunneling Protocol
- PSK – Pre-shared key
- PTR – Pointer (record)
- QoS – Quality of service
- QUIC – QUIC (originally Quick UDP Internet Connections)
- rDNS – Reverse DNS