ADDER CATx User Manual

Also see for AdderView CATx AVX4016: User guide

Contents

ADDER CATx User Manual Manual pdf 85 page image

 84Network configurationThis page allows you to configure the various aspects of the IP port and itsrelationship with the local network.MAC addressMedia Access Control address – this is the unique and unchangeable codethat was hard coded within your AdderView CATx IP unit when it was built. Itconsists of six 2-digit hexadecimal (base 16) numbers separated by colons. Asection of the MAC address identifies the manufacturer, while the remainder iseffectively the unique electronic serial number of your particular unit.Use DHCPDHCP is an acronym for ‘Dynamic Host Configuration Protocol’. Its function isparticularly useful when connecting to medium size or larger networks, such asthe Internet. When this option is selected, your AdderView CATx IP will attemptto locate a DHCP server on the network. If such a server is located, it will supplythree 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 usuallygranted permanently, but on a ‘lease’ basis for a fixed amount of time or for aslong as the AdderView CATx IP remains connected and switched on. Discoverallocations.IP AddressThis is the identity of the AdderView CATx IP within a network. The IP addresscan be thought of as the telephone number of the AdderView CATx IP. Unlikethe MAC address, the IP address can be altered to suit the network to which it isconnected. It can either be entered manually or configured automatically usingthe DHCP option. When the DHCP option is enabled, this entry is greyed out.IP Network MaskAlso often called the subnet-mask, this value is used alongside the IP addressto help define a smaller collection (or subnet) of devices on a network. In thisway a distinction is made between locally connected devices and ones that arereachable elsewhere, such as on the wider Internet. This process helps to reduceoverall traffic on the network and hence speed up connections in general.IP GatewayThis is the address of the device that links the local network (to which theAdderView CATx IP is connected) to another network such as the wider Internet.Usually the actual gateway is a network switch or router and it will be usedwhenever a required address lies outside the current network.VNC PortThis is the logical link through which communications with a remote VNC viewerwill be channelled (see What is a port?). The default setting is 5900 which isa widely recognised port number for use by VNC software. However, in certaincircumstances it may be advantageous to alter this number - see ‘Security issueswith ports’ for more details.HTTP PortThis is the logical link through which communications with a remote webbrowser will be channelled (see What is a port?). The default setting of 80 is anestablished standard for web (HTTP – HyperText Transfer Protocol) traffic thoughthis can be changed to suit your local network requirements.IP Access ControlThis section allows you to optionally specify ranges of addresses which willor won’t be granted access to the AdderView CATx IP. If this option is leftunchanged, then the default entry of ‘+0.0.0.0/0.0.0.0’ ensures that access fromall IP addresses will be permitted. See Setting IP access control for details.To get here1 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.