Billion Electric Company BiGuard 10, BiGuard 2 user manual DiffServ Dscp Marking, General VPN Setup

2.2.7 DiffServ (DSCP Marking)

DiffServ (a.k.a. DSCP Marking) allows you to classify traffic based on IP DSCP values. These markings can be used to identify traffic within the network. Other interfaces can match traffic based on the DSCP markings. DSCP markings are used to decide how packets should be treated, and is a useful tool to give precedence to varying types of data.

2.3Virtual Private Networking

A Virtual Private Network (VPN) enables you to send data between two computers across a shared or public network in a manner that emulates the properties of a point-to-point private link. As such, it is perfect for connecting branch offices to headquarter across the Internet in a secure fashion.

The following section discusses Virtual Private Networking with BiGuard 2/10.

2.3.1 General VPN Setup

There are typically three different VPN scenarios. The first is a Gateway to Gateway setup, where two remote gateways communicate over the Internet via a

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