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User Manual
Publication date: March, 2007
Revision A1
52
The serial number is assigned by the manufacturer.
Active IP Address:
Show the active IP address of this switch.
Active Subnet Mask:
Show the active subnet mask of this switch.
Active Gateway:
Show the active gateway of this switch.
DHCP Server:
Show the IP address of the DHCP server.
Default: 0.0.0.0
Lease Time Left:
Show the lease time left of DHCP client.
Device Name:
Set a special name for this switch. Up to 16 characters are allowed in
this parameter. Any alphanumeric character and null are acceptable.
Default: Giga Switch
DHCP Enabled:
Enable DHCP snooping, Just tick the check box () to enable it.
Default: disable
Fallback IP Address:
Users can configure the IP settings and fill in new values. Then, click
<Apply> button to update.
Default: 192.168.1.1
Fallback Subnet Mask:
Subnet mask is made for the purpose to get more network address
because any IP device in a network must own its IP address, composed
of Network address and Host address, otherwise can’t communicate with
other devices each other. But unfortunately, the network classes A, B,
and C are all too large to fit for almost all networks, hence, subnet mask
is introduced to solve this problem. Subnet mask uses some bits from
host address and makes an IP address looked Network address, Subnet
mask number and host address. It is shown in the following figure. This
reduces the total IP number of a network able to support, by the amount
of 2 power of the bit number of subnet number (2^(bit number of subnet
number)).