Digital Watchdog Starlight D1363D Informações Técnicas descarregar pdf (Página 51)

Virtual Distribution System (VDS) Setup

The Virtual Distribution System (VDS) is basically a VPN that permits the creation of a virtual circuit

from one end to another. VDS will allow you to create an ethernet bridge between any two radios, but

unlike most ethernet bridges you purchase, with VDS you can have several radios in between. See

below for how to create an ethernet bridge between two radios.

First, select interfaces->virtual distribution system (vds) setup. Then select create new vds (see fig 17).

This will provide you with a setup box (see fig 18).

Each VDS has only two endpoints, one server and one or more clients. The VDS can be a multipoint

circuit. Select either server or client. You must put a username and password. This username and

password will be used on each client that connects to a given server. Each side can have bandwidth

limits. Each client should have its own bandwidth limits. Limits placed on the server will apply to all

clients. So if you have 5 clients with 256KB limits and a server with 1MB limits, each client will get

up to 256K, but that may be less if all clients are downloading at the same time, in which case they will

each see a maximum of 200K due to the server limits of 1Mb total unless the CBQ method is per user.

The server side controls the circuit settings. Compression and encryption are optional, but take some

small amount of CPU. If you have a requirement to maintain a data stream confidential over a wireless

circuit, this is one way to ensure confidentiality. The VDS uses AES encryption. Select Multipoint if

the server will have multiple clients. Multipoint VDS' may only be bridges, so must be bridged with

another interface.

Clients must be told where to find the server (IP). Servers should not enter anything here.

Creating an Ethernet Bridge

To create an ethernet bridge, first set up two radios. Do not create any bridges at this point. The two

wireless cards connected to each other should be on one network (e.g., 192.168.20.13/30 and

192.168.20.14/30). The ethernet interfaces should have IPs on the network to be bridged (e.g.,

10.10.1.100/24 and 10.10.1.102/24). Create a VDS and bridge each VDS to the ethernet devices. Your

vds client (192.168.20.14) should point at the wireless device on the server (192.168.20.13). It's that

easy.

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Digital Watchdog Starlight D1363D Informações Técnicas Página 51