G ateway
For a local, residential or other type of network to connect to the internet,
a gateway is required to route traffic from the internet into the local network.
Usually this is a router or a cable or DSL modem.
H .264
H.264 is a popular compression method for CCTV IP cameras. H.264
offers greater file size compression over MJPEG and MPEG4 but requires greater
processing power to encode and decode.
I nternal IP Address
An Internal IP address is an IP address that is used for
devices on a local area network (LAN). Internal IP addresses cannot be seen by
computers outside the local network.
I P66
Most outdoor cameras have an Ingress Protection number, this number
describes the weather resistance of the camera housing. The first digit describes
the level of protection against solid objects, with 6 as the maximum. The second
digit describes the level of protection against liquids, with 8 as the maximum. IP66
is the standard for outdoor cameras – all OpenEye outdoor cameras are IP66
rated. A rating of IP66 means that the camera is rated weatherproof against dust
and rain.
I Pv4
IPv4 usually refers to the format of an IP address using the version 4
addressing method. IPv4 uses 32-bit addresses. These addresses are written as
four groups (or octets) of three digits, separated by a period, each with a maximum
value of 255 for each octet. Example: 192.168.25.235.
I SP
Your Internet Service Provider is the company that provides internet access
and service for you.
M JPEG
The Joint Picture Experts Group originally defined JPEG as a standard of
compression for photographers for image storage. Motion JPEG, or MJPEG, is a
widely used network video transmission method. MJPEG sends each image (or
frame) of a video stream as a complete image, because of this MJPEG uses little
processing power and provides very reliable transmission. However, this method
also uses a great deal of storage space when compared to H.264.
P oE
Power over Ethernet is a method for delivering network connection and power
over a single cable. PoE requires category 5 (Cat5) cable. Power must come from
a PoE device that can deliver power, such as a PoE injector or a PoE switch.
P ort
Network ports are logical software portals through which all network
communication must travel. There are 65,535 ports which ensure that any number
of devices requiring unique ports should be able to work together on the same
network.
P ort Forwarding
Unless an external address is assigned directly to a device
(which generally requires a monthly fee to the ISP), port forwarding is required
to allow communication to a device over the internet. With port
forwarding, the remote user enters the external IP address (which
is assigned to the router) and a port (which is assigned to the
device). The communication request is sent to the IP address,
which reaches the router. If properly configured, the router
then forwards the communication on to the device on the local
network using the corresponding port. Without port forwarding,
all communication from outside of the local network stops at the
router.
Port forwarding is a function of every router. Popular brands
such as Netgear or Linksys have an area in setup called Port
Forwarding. Some other brands may list this function as “pinhole”
or “virtual server”.
Step by step port forwarding instructions can be found at
portforward.com for nearly every router. Instructions can usually
be found on the web site of the router manufacturer or ISP or in
the router manual. In addition, OpenEye support is available to
assist with the port forwarding process.
R outer
A router is a specialized network switch that is capable of connecting two
or more networks, and can selectively route and forward data from one to the
other.
S witch
A network switch is a network device that is used to connect several other
network devices and segments. A switch is not capable of the same type of
advanced data routing and forwarding as a router.
S ubnet
Devices on a network are defined not only by the IP address, but also by
the subnetwork that they belong to. A subnet is a logical division of connected
devices. Most of the time, all devices in a network belong to the same subnet.
All IP addresses that belong to the same subnet have common digits at the
beginning of the IP address.
Need help? Contact our Virtual Support Hotline
Phone:
888-542-1103
Email:
FAQ:
faq.openeye.net
•
Web:
www.openeye.net/12ip
page 20
Need help? Contact our Virtual Support Hotline
Phone:
888-542-1103
Email:
FAQ:
faq.openeye.net
•
Web:
www.openeye.net/12ip
page 21
page 20
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