
Documentation Roadmap (308665-14.20 Rev 00) 7
Configuring L2TP Services
Layer 2 Tunneling Protocol (L2TP) provides remote users, such as telecommuters, mobile
professionals, and personnel in remote branch offices, with dial-in access to a corporate network.
L2TP enables users to create a virtual private network (VPN) over a public network, such as the
Internet, but offers the security and exclusivity of a private network. This manual describes how to
configure L2TP services on a Nortel Networks router.
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Configuring RADIUS
Remote Authentication Dial-In User Service (RADIUS) centralizes security and controls the
billing of services. RADIUS authentication identifies remote users before you give them access
to a central network site. RADIUS accounting collects data during a remote user’s dial-in session
so that you can determine billing charges. This manual describes how to configure RADIUS
services on a Nortel Networks router.
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