Network Configuration - ADDER CATx User Manual

Network Configuration

This page allows you to configure the
various aspects of the IP port and its
relationship with the local network.
Mac Addr
Media Access Control address – this
is the unique and unchangeable
code that was hard coded within
your AdderView CATx IP unit when
it was built. It consists of six 2-digit
hexadecimal (base 16) numbers
separated by colons. A section of
the MAC address identifies the
manufacturer, while the remainder is effectively the unique electronic serial
number of your particular unit.
Use DHCP
DHCP is an acronym for 'Dynamic Host Configuration Protocol'. Its function is
particularly useful when connecting to medium size or larger networks, such as
the Internet. When this option is selected, your AdderView CATx IP will attempt
to locate a DHCP server on the network. If such a server is located, it will supply
three things to the AdderView CATx IP: an IP address, an IP network mask
(also known as a Subnet mask) and a Gateway address. These are not usually
granted permanently, but on a 'lease' basis for a fixed amount of time or for as
long as the AdderView CATx IP remains connected and switched on.
allocations.
IP Address
This is the identity of the AdderView CATx IP within a network. The IP address
can be thought of as the telephone number of the AdderView CATx IP. Unlike
the MAC address, the IP address can be altered to suit the network to which it is
connected. It can either be entered manually or configured automatically using
the DHCP option. When the DHCP option is enabled, this entry is unavailable.
Net Mask
Also often called the 'subnet-mask', this value is used alongside the IP address
to help define a smaller collection (or subnet) of devices on a network. In this
way a distinction is made between locally connected devices and ones that are
reachable elsewhere, such as on the wider Internet. This process helps to reduce
overall traffic on the network and hence speed up connections in general.
Gateway
This is the address of the device that links the local network (to which the
AdderView CATx IP is connected) to another network such as the Internet.
Usually this is a network switch or router and it will be used whenever a device
to be contacted lies outside the local network.
VNC Port
This is the logical link through which communications with a remote VNC viewer
will be channelled (see
a widely recognised port number for use by VNC software. However, in certain
circumstances it may be advantageous to alter this number - see
with ports for more details.
Note: The VNC port and HTTP port can be set to the same port number in order
to simplify router and firewall configuration. If this is done then the AdderView
CATx IP will "listen" for both types of traffic on the single port.
HTTP Port
Discover
This is the logical link through which communications with a remote web
browser will be channelled. The default setting of 80 is an established standard
for web (HTTP – HyperText Transfer Protocol) traffic though this can be changed
to suit your local network requirements.
Clear IP Access Control
This option removes all entries from the IP access control feature within the
AdderView CATx IP. The IP access control feature (configurable by a global
admin user) allows certain network address ranges to be denied access to the
AdderView CATx IP. If set incorrectly, it is possible to exclude all network users
and so this option provides an emergency recovery point.
What is a port?). The default setting is 5900 which is
Security issues
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