LAC forwards the PPP session on to an L2TP Network Server (LNS). VPDN A virtual private dial−up network (VPDN) allows a private network dial in service to span across to remote access servers (defined as the L2TP Access Concentrator ).
Ĭonfiguring Virtual Template Router#config t Router(config)# interface Virtual-Template1 Router(config-if)# ip unnumbered FastEthernet0/1 Router(config-if)# no peer default ip address Router(config-if)# ppp encrypt mppe auto required Router(config-if)# ppp authentication ms-chap ms-chap-v2 For efficient router operation, frees the virtual access interface memory for another dial-in use when the user's call ends. For consistency and configuration ease, allows the same predefined template to be used for all users. For scalability, allows interface configuration to be separated from physical interfaces. īenifts of Virtual Template For easier maintenance, allows customized configurations to be predefined. Cisco routers support a maximum of 300 virtual interfaces.
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Requires the same amount of memory as a serial interface. Virtual Template A virtual template interface is a logical entity that are created, configured dynamically, used, and then freed when no longer needed. ‘Local’ keyword tells the AAA to use local username database for authentication Router(config)# aaa authorization network vpn_group local Router(config)# aaa authentication login vpn_xauth local aaa authorization network local Creates a list for authorization of all network-related service requests. ‘Local’ keyword tells the AAA to use local username database for authentication. Router(config)#aaa session-id common Ĭonfiguring AAA (contd) aaa authentication login local Sets (AAA) authentication at login. Router(config)#aaa new-model aaa session-id Ensures that all session identification (ID) information that is sent out for a given call will be made identical.
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Router(config)# username privilege password 0 Configure Fast Ethernet Interfaces Router#config t Router(config)#int f0/0 Router(config-if)# description Internal LAN (192.168.0.0/24) Router(config-if)#ip address 192.168.0.254 255.255.255.0 Router(config-if)#no shut Router(config)#int f0/1 Router(config-if)# description VPN INT (10.1.1.0/24) Router(config-if)#ip address 10.1.1.254 255.255.255.0 Router(config-if)#no shut īasic Router Configuration (contd) Configure Routing Protocol Router#config t Router(config)#router eigrp 1 Router(config-router)#network 192.168.0.0 Router(config-router)#network 172.16.1.0 Router(config-router)#network 10.0.0.0 IP Pool Router(config)# ip local pool ip_pool 172.16.1.10 172.16.1.20 Ĭonfiguring AAA aaa-model Enables the authentication, authorization, and accounting (AAA) access control model. īasic Router Configuration Creating Local Login Users for VPN. Cisco Security Device Manager (SDM for GUI based configuration).
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Hardware / Software Req Cisco integrated services router with 12.4 advance enterprise IOS.
Do not provide security features such as data confidentiality through encryption. Trusted VPN protocols include MPLS, ATM or Frame Relay. Trusted VPNs Created by carriers and large organizations on large core networks. Secure VPN protocols include IPSec, SSL or PPTP (with MPPE). Connects multiple networks together securely using the Internet to carry the traffic.
Provide remote access facilities to employees. Secure VPNs Provide mechanisms for authentication of the tunnel endpoints and encryption of the traffic. Two broad categories of VPN are: Secure VPNs Trusted VPNs Ĭategories of VPN VPN technologies may be classified by many standards. It has the purpose of creating a private scope of computer communications or providing a secure extension of a private network into an insecure network such as the Internet. What is VPN ? A virtual private network (VPN) is a computer network that is implemented in an additional logical layer (overlay) on top of an existing network. Agenda VPN Categories of VPN Secure VPNs Trusted VPN Hardware / Software Requirement Network Diagram Basic Router Configuration Configuring AAA Server Virtual Template VPDN IPSec