Keithley 708B Reference Manual page 67

Section 2: General operation
Dynamic DNS
DNS is a rigid and inflexible system, because you must have a system administration add the DNS
entry to the DNS server for it to work. Dynamic DNS tries to address this inflexibility. It addresses the
needs of network devices that are powered up and down with IP addresses that can change several
times a day.
Dynamic DNS is generally used to refer to a system where there is a DHCP server on the network
that allocates IP addresses to the network devices, and therefore there is a method to register a
hostname with the DHCP server. The DHCP server assigns the IP address and tracks the hostnames
at the same time.
Multicast DNS
Multicast DNS (mDNS) is a protocol that is more suitable than DNS for small localized ad-hoc
networks.
mDNS uses multicast packets for network devices to inform each other of their IP addresses,
hostnames, and advertise what services might be available on that device. The packets are usually
blocked from going any further than the nearest router. This limits the scope of mDNS, but multicast
packets are more network-friendly than broadcast packets. For example, every network device in your
subnet receives broadcast packets regardless of need, while for multicast packets, a network device
must register for multicast addresses that will be received.
Multicast packets have IPv4 addresses in the range 224.0.0.0 through 239.255.255.255.
Windows network configuration settings
The following topics describe how to change the LAN network settings for computers that run
Microsoft Windows operating systems.
Windows XP Internet Protocol (TCP/IP) Properties dialog box
You can review and change IP settings in the Internet Protocol Properties dialog box.
To open this dialog box in Windows XP:
1. Click Start and select Settings, then Control Panel.
2. Double-click Network Connections.
3. Double-click Local Area Connection and click Properties. The Local Area Connection
Properties dialog box is displayed.
4. In the items list, double-click Internet Protocol (TCP/IP). The Internet Protocol (TCP/IP)
Properties dialog box is displayed.
2-48
Models 707B and 708B Switching Matrix Reference Manual
707B-901-01 Rev. A / August 2010