Nortel Networks 1500 manual An Intranet and the Internet Make Up an Extranet

Getting Started with the Contivity Extranet Switch 1500 Series

	LAN
E -Mail
Server
NT	Contivity
Server	Extranet
	Switch
Authentication	Firewall	Router
Server

Intranet

Cable or DSL	Remote
	Employee

ISP POP

ISP POP	Partner
	ISP POP

	56K
ISP PO P	Modem

ISDN

Reseller

Internet

Extranet

Figure 1-1. An Intranet and the Internet Make Up an Extranet

The Switch provides more security than traditional remote access schemes due to the combination of authorization, authentication, privacy, and access control on a per user basis. Additionally, the IPsec protocol and related Internet Security Association & Key Management Protocol (ISAKMP) and the Oakley key establishment protocol support further enhance the security offering.

For authentication and access control, the Switch supports an internal or external Lightweight Directory Access Protocol (LDAP) server and external Remote Authentication Dial-In User Service (RADIUS) servers.

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