AAA provides a method for identifying users who are logged in to a router and have access to servers or other resources.ĪAA also identifies the level of access that has been granted to each user and monitors user activity to produce accounting information.
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To begin, we need to enable the router's 'aaa model' which stands for 'Authentication, Authorisation and Accounting'.
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In order to configure Cisco IPSec VPN client support, the router must be running at least the 'Advanced Security' IOS otherwise most of the commands that follow will not be available at the CLI prompt! We highly recommend using Cisco IPSec VPN only. We should note that configuring your router to support Point-to-Point Tunnel Protocol VPN (PPTP) is an alternative method and covered on our Cisco PPTP Router Configuration article, however PPTP VPN is an older, less secure and less flexible solution. The group credentials are entered once and stored in the VPN connection entry, however the user credentials are not stored and requested every time a connection is established: The remote client must have valid group authentication credential, followed by valid user credential. The VPN established is an IPSec secure tunnel and all traffic is encrypted using the configured encryption algorithm:Įngineers and administrators who need to restrict VPN user access to Layer-4 services e.g The Cisco IPSec VPN has two levels of protection as far as credentials concern. Following each step shown in this article will guarantee it will work flawlessly.īelow is a typical diagram of a company network providing VPN access to remote users in order to access the company's network resources. Setting up a Cisco router to accept remote Cisco VPN clients is not an extremely difficult task. Some companies have a strict policy that does not allow the remote VPN client access the Internet while connected to the company network (split tunneling disabled) while others allow restricted access to the Internet via the VPN tunnel (rare)! In this case, all traffic is tunnelled through the VPN and there's usually a web proxy that will provide the remote client restricted Internet access.įrom all the above, split tunneling is the most common configuration of Cisco VPN configuration today, however for educational purposes, we will be covering all methods.
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In this setup, only traffic destined to the company's LAN is sent through the VPN tunnel (encrypted) while all other traffic (Internet) is routed normally as it would if the user was not connected to the company VPN. Split tunneling is a feature that allows a remote VPN client access the company's LAN, but at the same time surf the Internet. The Cisco VPN also introduces the concept of ‘Split Tunneling'.
#Free vpn client for group authentication download
Cisco VPN Clients are available for download from our Cisco Downloads section.
#Free vpn client for group authentication mac os
To initiate the connection, we use the Cisco VPN client, available for Windows operating systems (XP, Vista, Windows 7 - 32 & 64bit), Linux, Mac OS X10.4 & 10.5 and Solaris UltraSPARC (32 & 64bit), making it widely available for most users around the globe.
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All that is required is fast Internet connection and your user credentials to log in – all the rest are taken care by your Cisco router or firewall appliance. The flexibility of having remote access to our corporate network and its resources literally from anywhere in the world, has proven extremely useful and in many cases irreplaceable. Remote VPN access is an extremely popular service amongst Cisco routers and ASA Firewalls.