M Series,MX Series,T Series. The L2TP network server (LNS) sends RADIUS authentication requests or accounting requests. Authentication requests are sent out to the authentication server port.
RFC 3817： Layer 2 Tunneling Protocol (L2TP) Active Discovery Relay for PPP over Ethernet (PPPoE) RFC 3931： Layer Two Tunneling Protocol - Version 3 (L2TPv3) RFC 4045： Extensions to Support Efficient Carrying of Multicast Traffic in Layer-2 Tunneling Protocol (L2TP) L2TP — Вікіпедія RFC 3817 Layer 2 Tunneling Protocol (L2TP) Active Discovery Relay for PPP over Ethernet (PPPoE) RFC 3931 Layer Two Tunneling Protocol — Version 3 (L2TPv3). RFC 4045 Extensions to Support Efficient Carrying of Multicast Traffic in Layer-2 Tunneling Protocol (L2TP). L2TP - RouterOS - MikroTik L2TP standard is defined in RFC 2661. Introduction. It may be useful to use L2TP just as any other tunneling protocol with or without encryption. The L2TP standard says that the most secure way to encrypt data is using L2TP over IPsec (Note that it is the default mode for Microsoft L2TP client) as all L2TP control and data packets for a RFC 2809: Implementation of L2TP Compulsory Tunneling via
Apr 02, 2020
Published in 1999 as proposed standard RFC 2661, L2TP has its origins primarily in two older tunneling protocols for Point-to-Point communication: Cisco’s Layer 2 Forwarding Protocol (L2F) and USRobotics Point-to-Point Tunneling Protocol (PPTP). A new version of this protocol, L2TPv3, was published as proposed standard RFC 3931 in 2005.
VPN — IPsec — L2TP/IPsec | pfSense Documentation
L2TP (remote access) - Sophos L2TP (remote access) The Layer Two Tunneling Protocol (L2TP) enables you to provide connections to your network through private tunnels over the internet. The firewall supports L2TP as defined in RFC 3931. Add L2TP Connection. PPTP (Remote Access) Clientless Access RFC 3145 - L2TP Disconnect Cause Information (RFC3145) Network Working Group R. Verma Request for Comments: 3145 Deloitte Consulting Category: Standards Track M. Verma 3Com Corporation J. Carlson Sun Microsystems July 2001 L2TP Disconnect Cause Information Status of this Memo This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. RFC 3817 - Layer 2 Tunneling Protocol (L2TP) Active Informative References  Patel, B., Aboba, B., Dixon, W., Zorn, G. and S. Booth, "Securing L2TP Using IPsec," RFC 3193, November 2001. Appendix A: PPPoE Relay in Point to Multipoint Environments The PPPoE PADI message in its native form, is sent as a broadcast message on an Ethernet link. What Is L2TP (Layer 2 Tunneling Protocol)? | CactusVPN