VPN components

VPN components can run alongside other software on a shared server, but this is not typical, and it could put the security and reliability of the VPN at risk. A small business that isn’t outsourcing its VPN services might deploy firewall and RADIUS software on generic servers. However, as a business’s VPN needs increase, so does its need for equipment that’s optimized for the VPN. The following are dedicated VPN devices a business can add to its network. You can purchase these devices from companies that produce network equipment, such as Cisco:

  • VPN Concentrator — This device replaces an AAA server installed on a generic server. The hardware and software work together to establish VPN tunnels and handle large numbers of simultaneous connections.
  • VPN-enabled/VPN-optimized Router — This is a typical router that delegates traffic on a network, but with the added feature of routing traffic using protocols specific to VPNs.
  • VPN-enabled Firewall — This is a conventional firewall protecting traffic between networks, but with the added feature of managing traffic using protocols specific to VPNs.
  • VPN Client — This is software running on a dedicated device that acts as the tunnel interface for multiple connections. This setup spares each computer from having to run its own VPN client software.
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