BT Business Hub 3 User Manual download pdf (Page 14)

The network described in this section represents a typical small-to

medium business network. In the following example, the customer

has purchased 5 broadband static IP addresses (208.35.230.192/29).

Sample small-to-medium business network

Note: The configuration information listed in the following sections are examples ONLY.

Depending on your network setup, your actual settings (such as values for DNS and

IP addr

esses) may var

This sample is a multi-homed network server and provides DHCP service to the

Local Area Network (LAN) and routes Internet-based network traffic from the

LAN to the Wide Area Network (WAN). One of the server network interfaces is

connected to the LAN and the other is connected to a hardware firewall.

Firewall protection is provided by the network server operating system and is

applied to the WAN connected network interface. Alternatively, a specialised

hardware firewall might be installed between the BT Business Hub and the

WAN-connected network card in the network server.

A multi-homed VPN server

This server might be used to connect individual

remote clients to the LAN. It could also be

connected to another VPN server at a remote

location to link two networks together.

The VPN server is connected directly to the

BT Business Hub.

Publicly accessible web server

This server is directly connected to the

T Business Hub and is not connect

ed to the

local network. In some networks, this server may

be behind a hardware firewall and may have an

additional network interface connected to the

private LAN. The following sections describe

how t

o configure the servers.

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BT Business Hub 3 User Manual Page 14