Sonic Blue Replay TV 5000 - Manual (Page 68)

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ReplayTV 5000
:: Glossary
Bridge - A Bridge allows the free flow of data from one type of physical medium to another. For example, a bridge is required to connect a phoneline network to
an Ethernet network.
DHCP (Dynamic Host Configuration Protocol) - This is the method by which computers, and ReplayTV, automatically get IP addresses. By default, the
ReplayTV 5000 will attempt to get its IP address automatically when it’s starting up. It will attempt to renew this IP address every 24hrs. ReplayTV is considered
a DHCP client. The router that automatically assigns the IP address to ReplayTV is considered a DHCP server.
DMZ Host Page - A host on a network that prevents outside users from accessing data on your network. Depending on your router, it might be necessary to add
the IP address of ReplayTV to the DMZ host page. This will place ReplayTV outside of the firewall. This may be necessary if the router is not properly routing
the information it receives to ReplayTV. Check your router manual for more details on when using DMZ is appropriate.
DNS (Domain Name System) - A DNS server translates domain names like www.sonicblue.com into their corresponding IP addresses.
DSL Router - A DSL router is simply a router that also functions as an external DSL modem. This DSL router would function as a DHCP server.
Gateway - The gateway address is the IP address of the computer or device on a local network that gives you access to the Internet. If you are using a router, it’s
the internal (LAN) IP address of the router.
Hub - A hub is like a splitter. It turns one port into 4, 8, 16, etc. The hub provides more physical ports and nothing else. The hub has an uplink port that some-
times can be switched to a standard port. You would normally connect your Cable or DSL modem to the uplink port. Your PCs or devices like ReplayTV would
plug into the non-uplink ports.
IP Address - This is a unique address that all computers and devices require to communicate over the Internet. Computers on corporate and home networks most
likely use IP addresses to communicate with each other. ReplayTV also requires an IP address to communicate. This address can be set manually or provided
automatically. Depending on your setup, this IP address might come from a router, or your ISP (Internet Service Provider).
ISP (Internet Service Provider) - A company that provides Internet access through telecommunications lines.
MAC Address (Media Access Control) - The unique hardware number of devices on a network. Some ISPs require the MAC address of a
network device in order to automatically assign it an IP address.
Router - In order for you computer to communicate to the Internet using a broadband connection, it not only requires a physical connection but also an IP
address. The router not only lets you share a physical connection (like a hub or switch), it also lets you share a single Internet IP address with more than one com-
puter or device. Instead of needing three IP addresses for three computers in your home, you can purchase one for the router and the router will allow all three
computers in your home to share your Cable, DSL, ISDN, or Satellite connection. Some routers allow you to share a modem connection in this way. If you pur-
chase a single port router, you will also need a hub or switch to connect more than one device to the router. If connecting a PC or ReplayTV directly to a single
port router, you must use a crossover cable.
If you have PPPoE DSL (requires that you use software to login for Internet access), you need to verify that any router you purchase also supports PPPoE.
Subnet Mask - This address is a filter that determines what part of the network your computer or ReplayTV is on. For example, many routers use 192.168.0.1
for an IP address and 255.255.255.0 for a subnet mask. Any computers or devices on your local network that has an IP address that matches 192.168.0.x will be
able to communicate with each other.
Switch - If you have a mix of 10 and 100Mbps devices or computers on your network, upgrading from a hub to a switch can greatly improve performance. Also,
if you have many devices on your network, the switch will give you better performance than the hub.