NAIM HDX Network Setup Manual page 13

Glossary
Auto IP Address – The address the HDX will revert to if it is in DHCP mode and there is
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no DHCP server.
DHCP addressing mode – in this mode the DHCP server automatically allocates the IP
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addresses to the HDX.
DHCP address pool – The address pool is the range of addresses used by the DHCP
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server when allocating IP addresses to devices on the network. The current DHCP pool
settings can usually be determined by checking the Modem/Router configuration.
DHCP server – This allocates the IP addresses to the devices on the network. In a
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typical home setup the DHCP server is built into the Modem/Router.
DNS– The Domain Naim System is a system of converting a domain name (e.g.
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www.naimaudio.com) to an IP address. When accessing the Internet the DNS service
is usually provided by the ISP. The local DNS server in the Mode/Router performs the
same function but on the local network. For example it allows the user to type the HDX
name into a web browser (e.g. http://NSHDX1234/) and it translates the HDX name to
the correct IP address.
Firewall (software) – A software firewall runs on a computer and prevents unwanted
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intrusions from other computers. Microsoft Windows XP and Vista are both supplied
with software firewalls. Normally Windows will advise if these are not enabled.
Examples of other software firewall vendors are ZoneAlarm, Norton and Eset. It is
recommended to always run a software firewall on any computer connected to the
Internet.
Firewall (hardware) – Most Modem/Routers have a build in firewall, often known as a
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hardware firewall. These prevent unwanted intrusions from computers on the Internet
by stopping any incoming communication not initiated from the local network. A
hardware firewall is not a substitute for a software firewall and it is recommended that
both are always used together.
Gateway – This is the IP address that the HDX uses to access the Internet. In a home
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network this is often the same IP address as the Modem/Router
IP Address – This is the unique address of a device on a network. The HDX has two IP
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addresses. One for the Main Controller and one for the Front Display Controller.
ISP – The Internet Service Provider is the company that provides the Internet
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connection to the home.
Static addressing mode – in this mode the user manually allocates the IP addresses to
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the HDX. This method is more complicated than DHCP and should only be used if it
has been determined that static addressing mode is necessary.
LAN – The Local Area Network is the home network that is 'behind' the
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Modem/Router.
Naim Audio HDX Hard Disk Player – Network Setup
Page 13 of 14
4 September 2008