Product Overview. VNS3 is a software-only virtual appliance for Connectivity, Federation & Security in AWS. VNS3 acts as many devices in 1: router, switch, SSL/IPSec VPN concentrator, firewall, protocol re-distributor, flexible network edge plugins, with a DevOps/SecOps capable API.

Concentrator configuration. config vpn ipsec concentrator Description: Concentrator configuration. edit set src-check [disable|enable] set member , , next end config vpn ipsec concentrator VPN Concentrator vs IPsec encryption VPN concentrators generally use either IPsec (Internet Protocol Security) or SSL (Secure Socket Layer) encryption protocols. The SSL VPN uses the TCP port 443, and because most browsers are also using SLL, this type of traffic matches the best with most networks. IPSEC is more secure than SSL. However, users need to configure client software on their device to be able to connect to the VPN network. Many businesses use IPSEC as the protocol for their VPN concentrator network. IPSEC is best to access a VPN from a fixed location like your home or office. Which VPN concentrator encryption to choose: IPSec or SSL? There are two major security protocols that VPN concentrators use in encrypting files: Internet protocol security (IPsec) Secure socket layer (SSL) Internet protocol security - Files encrypted with this security protocol require client software to gain access to the private network A concentrator configuration specifies which spokes to include in an IPsec hub-and-spoke configuration. Settings: Concentrator Name: Type a name for the concentrator. Available Tunnels: A list of defined IPsec VPN tunnels. Select a tunnel from the list and then select the right arrow. Members: A list of tunnels that are members of the

In most cases, IPSec VPN traffic does not pass through ISA Server 2000. However, Cisco Concentrator 3300, with the latest firmware updates, uses "transparent tunneling" that uses User Datagram Protocol (UDP) ports 500, 4500, and 10000 to communicate securely between VPN clients and concentrators.

This document shows how to configure an IPsec tunnel between a Cisco VPN 3000 Concentrator and a Cisco router with Advance Encryption Standard (AES) as the encryption algorithm. AES is a new Federal Information Processing Standard (FIPS) publication created by the National Institute of Standards and Technology (NIST) to be used as an encryption A VPN concentrator is a type of networking device that provides secure creation of VPN connections and delivery of messages between VPN nodes. It is a type of router device, built specifically for creating and managing VPN communication infrastructures.

A VPN Concentrator vs. a Site to Site VPN: It is important to keep in mind that a VPN Concentrator is typically used in those scenarios where there is a One to Many (1: N) set up. This simply means that many remote employees are logging into just one physical location, where the server resides at.

The hub functions as a concentrator on the network, managing all VPN connections between the spokes. VPN traffic passes from one tunnel to the other through the hub. You define a concentrator to include spokes in the hub-and-spoke configuration. You create the concentrator in VPN > IPsec > Concentrator and select Create New. A concentrator Concentrator configuration. config vpn ipsec concentrator Description: Concentrator configuration. edit set src-check [disable|enable] set member , , next end config vpn ipsec concentrator VPN Concentrator vs IPsec encryption VPN concentrators generally use either IPsec (Internet Protocol Security) or SSL (Secure Socket Layer) encryption protocols. The SSL VPN uses the TCP port 443, and because most browsers are also using SLL, this type of traffic matches the best with most networks.