Network configuration
This page allows you to configure the various aspects of the IP port and its
relationship with the local network.
MAC address
Media Access Control address – this is the unique and unchangeable code that
was hard coded within your SC5-4xIP 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.
When this option is selected, your SC5-4xIP will attempt to locate a DHCP
server on the network. If such a server is located, it will supply three things to
the SC5-4xIP: 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 SC5-4xIP remains
connected and switched on.
Discover allocations
.
IP Address
This is the identity of the SC5-4xIP within a network. The
IP address
can be
thought of as the telephone number of the SC5-4xIP. 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 greyed out.
IP Network 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.
IP Gateway
This is the address of the device that links the local network (to which the
SC5-4xIP is connected) to another network such as the wider Internet. Usually
the actual gateway is a network router and it will be used whenever a required
address lies outside the current network.
VNC Port
This is the logical link through which communications with a remote VNC viewer
will be channelled (see
What is a port?
). The default setting is 5900 which is
a widely recognised port number for use by VNC software. However, in certain
circumstances it may be advantageous to alter this number - see ‘Security issues
with ports’ for more details.
HTTP Port
This is the logical link through which communications with a remote web
browser will be channelled (see
What is a port?
). 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.
IP Access Control
This section allows you to optionally specify ranges of addresses which will or
won’t be granted access to the SC5-4xIP. If this option is left unchanged, then
the default entry of ‘+0.0.0.0/0.0.0.0’ ensures that access from all IP addresses
will be permitted. See
Setting IP access control
for details.
To get here
1 Using VNC viewer or a browser, log on as the ‘admin’ user.
2 Click the ‘Configure’ button in the top right corner.
3 Click the ‘Network Configuration’ option.
