Available static IP address
This is the unique address assigned to the SecureSync unit by the network admin-
istrator. Make sure the chosen address is outside of the DHCP range of your
DHCP server.
Note: The default static IP address of the SecureSync unit is
10.10.201.x (x= dependent on ETH port).
Subnet mask (for the network)
The subnet mask defines the number of bits taken from the IP address that are used
in the network portion. The number of network bits used in the net mask can range
from 8 to 30bits.
Gateway address
The gateway (default router) address is needed if communication to the
SecureSync is made outside of the local network. By default, the gateway is dis-
abled.
Note: Make sure you are assigning a static IP address to your SecureSync unit
that is outside of the DHCP range defined for the DHCP server. Your system
administrator will be able to tell you what this range is.
2.11.1 Dynamic vs. Static IP Address
On a DHCP network (Dynamic Host Configuration Protocol), SecureSync's IP address will be
assigned automatically once it is connected to the DHCP server. This negotiated address and
other network information are displayed on the unit front panel when the unit boots up.
If you plan on allowing your SecureSync to use this negotiated DHCP Address on a permanent
basis, you can skip the following topics about setting up an IP address, and instead proceed to
"Accessing the WebUI" on page53, in order to complete the SecureSync configuration pro-
cess.
Please note:
Unless you are using DNS in conjunction with DHCP (with the client configured using
SecureSync's hostname instead of IP address), Spectracom recommends to disable DHCP for
SecureSync, and instead use a static IP address. Failure to do this can result in a loss of time
synchronization, should the DHCP server assign a new IPaddress to SecureSync.
2.11.2 Assigning a Static IP Address
Spectracom recommends assigning a static IP address to SecureSync, even if the unit is con-
nected to a DHCP server.
This can be accomplished in several ways:
2.11 Setting up an IP Address
CHAPTER 2 • SecureSync User Reference Guide Rev. 26
45
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