Ip Addresses And Connectivity - AT&T SB67030 Administrator's Manual

IP Addresses and Connectivity

An IP address is an individual numeric identification assigned to devices on a computer network. At least one Synapse device
needs a network-assigned IP address on the subnet shared with any computers that will allow access to the WebUI. Valid IP
addresses on the same subnet allow devices on the network to identify each other and enable communication.
This IP address may be assigned from a Dynamic Host Configuration Protocol (DHCP) server, or set statically to the same subnet,
and will be separate from the self-assigned 169.254.xxx.xxx link-local address that the Synapse devices use to communicate with
each other. When setting up the IP address on a Synapse device, this network IP address used for WebUI connectivity is the only
address that the SA can change.
The network IP addresses can be assigned in two ways:
1. The Synapse device can request a network server to automatically assign an IP address. This IP address is a dynamic
assignment; the address is on lease from the server. The lease is renewed as long as the device remains connected and there
is no change to the network. However, if the device is disconnected, or if there is a network or AC power interruption, the
lease may not be renewed (i.e., the IP address expires) and a new IP address may be assigned.
Most LANs use servers to automatically assign IP addresses. Synapse defaults to assuming that this automatic assignment
will occur.
Some servers have default settings that limit the number of network IP addresses assigned to devices on the network.
You should log in to your server to confirm that the IP range is sufficient to accommodate at least one of the Synapse
devices that you are adding as at least one Synapse device needs an assigned IP address to enable WebUI
configuration activities. Consult the IT department or the person that installed this system if you need help checking
the server.
2. The Synapse Administrator can manually assign a static system IP address. This IP address does not change, even when there
are network or AC power interruptions. Some installations will require manual static IP assignment.
A switched-network topology is recommended. This topology refers to the network virtual shape or structure and does not
necessarily reflect the physical layout. Switched networks involve connecting the network components to switches rather than
hubs; this improves network communication.
System Description
Synapse Administrator's Guide
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