Milestone XProtect Advanced VMS 2014 - Manual (Page 23)

Milestone XProtect ® Advanced
VMS 2014
Administrator's Manual
www.milestonesys.com 23 System overview
The surveillance system must therefore be able to determine whether a client belongs on a local IP
range or on the Internet. For this purpose, you can define a list of IP ranges which the surveillance
system should recognize as coming from a local network.
About IPv6 and IPv4
Your system supports IPv6 as well as IPv4. So does XProtect Smart Client.
IPv6 is the latest version of the Internet Protocol (IP). The Internet protocol determines the format and
use of IP addresses. IPv6 coexists with the still much more widely used IP version IPv4. IPv6 was
developed in order to solve the address exhaustion of IPv4. IPv6 addresses are 128 bit long, whereas
IPv4 addresses are only 32 bit long. IPv6 offers more than ten billion billion billion times as many
addresses as IPv4.
More and more organizations are implementing IPv6 on their networks. For example, all US federal
agency infrastructures are required to be IPv6 compliant. Examples and illustrations in this manual
reflect use of IPv4 because this is still the most widely used IP version. IPv6 works equally well with
the system.
About using the system with IPv6
The following conditions apply when using the system with IPv6:
Servers
Servers can often use IPv4 as well as IPv6. However, if just one server in your system (for example, a
management server, recording server or failover recording server) requires a particular IP version, all
other servers in your system must communicate using the same IP version.
Example: All of the servers in your system except one can use IPv4 as well as IPv6. The
exception is a server which is only capable of using IPv6. This means that all servers must
communicate with each other using IPv6.
Devices
You can use devices (cameras, inputs, outputs, microphones, speakers) with a different IP version
than that being used for server communication provided your network equipment and the recording
servers also support the devices' IP version. See also the illustration below.
Clients
If your system uses IPv6, users should connect with the XProtect Smart Client. The XProtect Smart
Client supports IPv6 as well as IPv4.
If one or more servers in your system can only use IPv6, XProtect Smart Client users must use IPv6
for their communication with those servers. In this context, it is important to remember that XProtect
Smart Clients technically connect to a management server for initial authentication, and then to the
required recording servers for access to recordings.
However, the XProtect Smart Client users do not have to be on an IPv6 network themselves, provided
your network equipment supports communication between different IP versions, and they have
installed the IPv6 protocol on their computers. See also illustration. To install IPv6 on a client
computer, open a command prompt, type Ipv6 install, and press ENTER.