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The stores themselves only
have a few members of staff and so ADSL connections were installed
and a site-to-site VPN created between each store and the head office.
At the hub of the network a high-availability firewall cluster was
installed to protect the network and to terminate the VPN's.
For each regional office a 2Mbps leased line was installed. The extra
bandwidth necessary due to a higher number of users simultaneously
accessing the system. These too were connected via a site-to-site VPN.
The head office and the customer disaster recovery site are connected
to the hub of the network via 100Mbps Ethernet connections. A further
1Gbit connection was installed between the head office and disaster
recovery site to ensure fast database replication without compromising
network performance.
To provide the head office, disaster recovery site and regional head
offices with Internet access; 10Mbps of Internet bandwidth was terminated
at the hub. This ensured that the internal network of the customer
could not be reached from the Internet but the customer could communicate
with devices outside of its network.
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