Tieline Bridge-IT XTRA, User Manual

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© Tieline Pty. Ltd. 2015
Bridge-IT XTRA Manual
20.3
Understanding IP Networks
Types of IP Addresses Available
Type of IP
Address
How the IP
Address is
Allocated
Description
Public Static Public IP
Address Internet Service
Providers (ISPs) ISP’s allocate a static public IP address to allow
network devices to communicate with each other
over the internet. It works like a public telephone
number and will allow your remote codec to call
your studio codec over the Internet.
Dynamically
Assigned Public
IP Address Internet Service
Providers (ISPs) ISP’s usually allocate dynamically
(automatically) assigned public IP addresses to
allow network devices to communicate with each
other over the Internet. (Not recommended for
studio installations because each time you
connect to your ISP the IP address can change).
Private Dynamically
Assigned Private
IP Address DHCP Server/
Router on your
own private LAN
network. A DHCP server-allocated IP address that is
automatically assigned to a device on a LAN to
allow it to communicate with other devices and
the internet. This address can change each time
a device connects.
Static Private IP
Address LAN
Administrator A network administrator-allocated static address
which is programmed into a device to allow it to
connect to a LAN. Often a security measure to
only allow access to devices approved by a
network administrator.
Obtaining Public IP Addresses
To send audio streams over the public internet you need to use a public IP address assigned to you
by your ISP (Internet Service Provider).
A public IP address is like your public telephone number and allows you to be contacted over the
internet in much the same way people dial your public telephone number. They come in two forms;
dynamic (DHCP) and static. Most ISPs assign a dynamic public IP address by default, which can
often change without you knowing. This is suitable for a quick demo of your Tieline codec, but for a
permanent installation you will need to request a permanent static public IP address.
Once the Static Public IP address is assigned to your internet connection (router) at the studio you
need to create a link between the public IP address and your codec’s private IP address on the
LAN. This is called Network Address Translation.
Depending upon how your network is configured, it may also be possible to simply connect your
Tieline codec directly into your ADSL modem/router and receive a public address from the router.
Private LAN IP Addresses
By default your Tieline codec will normally be automatically assigned a private IP address when you
connect it to a typical router over a LAN.
Private IP Addresses are associated with LANs and normally reside behind a firewall and are not
visible to the internet. They are generally in the ranges: 10.0.0.1 – 10.255.255.255, 169.254.0.0 –