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L2F , or Layer 2 Forwarding , is a tunneling protocol developed by Cisco Systems, Inc. to create a virtual private network connection over the Internet. L2F does not provide encryption or confidentiality by itself; It depends on the protocol being linked to provide privacy. L2F is specifically designed to transmit Point-to-Point Protocol (PPP) traffic.
Video Layer 2 Forwarding Protocol
Use
Virtual dial-up allows many separate and autonomous protocol domains to share common access infrastructure including modems, Access Servers, and ISDN routers. The RFC prior to 2341 has established protocols to support IP dial-up via SLIP and multiprotocol dial-up through PPP.
Maps Layer 2 Forwarding Protocol
L2F package structure
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Other VPN protocols
- IPsec
- L2TP Layer 2 Tunneling Protocol
- OpenVPN
- PPTP Point-to-Point Tunneling Protocol
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References
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External links
- L2F in Cisco.com
- VPDN in Cisco.com
- L2TP in Cisco.com
- RFC2341 at IETF.org
- RFC2341 in RFC Archive
Source of the article : Wikipedia
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