Cisco RV042 Administration Guide - Page 171

Configuring a Gateway-to-Gateway VPN Tunnel Between RV0xx Series Routers Topology Options D VPN Hub and Spoke Topology In a VPN hub-and-spoke topology, multiple VPN routers (spokes) communicate securely with a central VPN router (hub). A separate, secured tunnel extends between each individual spoke and the hub. In the following example, two branch offices (spokes) have site-to-site VPN tunnels to the main office (hub). The traffic typically is between a remote site and the main office. Inter-site traffic must pass through the hub first and then out to a spoke. Figure 1 Hub and Spoke Site 1 VPN Tunnel VPN Tunnel VPN Tunnel Main Office Internet Site 3 284286 Site 2 This topology is a simple way to allow all branch employees to access the main network. It works well if most traffic is from the remote sites to the main network and there is little traffic among the sites. Too much inter-site traffic may create bottlenecks at the hub. Cisco Small Business RV0xx Series Routers Administration Guide 171