Adder Technology iPEPS

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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 iPEPS 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 Adder Technology as 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 iPEPS will attempt to locate a DHCP server on the

network. If such a server is located, it will supply three things to the iPEPS: 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 iPEPS remains connected and

switched on. Discover allocations.

IP Address

This is the identity of the iPEPS within a network. The IP address can be thought

of as the telephone number of the iPEPS. 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 iPEPS

is connected) to another network such as the wider Internet. Usually the actual

gateway is a network switch or 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 iPEPS. 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.