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Applications overview 24
OnSite 2800 Series User Manual 1 • General information
X.21 serial interfaces, or an Ethernet WAN interface. For remote sites where PPP service is available, the 2800
Series also supports PPP network access over all the standard WAN interface options mentioned above.
In this specific application, all traffic between the branch and corporate offices is carried in an IPSec tunnel. All
of the IPSec VPN traffic is encapsulated in Frame Relay for transport over the Frame Relay service network.
The serial port is configured for Frame Relay.
To configure this application, you need to configure the following features:
• The serial port with Frame Relay as the encapsulation protocol
• An IPSec VPN between the two endpoints.
See chapter 4 on page 44 to configure the serial port and chapter 6 on page 67 to configure the VPN.
Corporate multi-function virtual private network
The OnSite 2800 Series can deliver both private corporate intranet service and public Internet access to multi-
ple remote sites by leveraging OnSite’s multiple frame-relay PVC support (see figure 7). The enterprise enjoys
the benefits of secure multi-office virtual private networking with QoS for prioritized traffic flow for mission-
critical information.
Figure 7. Corporate multi-function virtual private network