Ip Configuration - Black Box 12-Port 1000BASE-TX L2 Managed PoE Switch User Manual

12-Port 1000BASE-TX L2 Managed PoE Switch with 2 SFP Dual Media Ports
4.2.2 IP C
ONFIGURATION
IP configuration is one of the most important switch configurations. Without the proper setting, the network
manager will not be able to manage or view the device. The switch supports both manual IP address setting and
automatic IP address setting via a DHCP server. When the IP address is changed, you must reboot the switch for
the setting to take effect and to use the new IP to browse for Web management and CLI management. To get to
the IP Configuration screen, click on IP in the System menu. Then, set the switch's IP address, subnet mask,
default gateway, and DNS. Table 4-4 describes the IP Configuration screen parameters.
Parameter
DHCP Setting
IP address
Subnet mask
34
Table 4-4. IP Configuration screen options.
Description
Dynamic Host Configuration Protocol (DHCP) can be ON or OFF.
Select Enable or Disable from the drop-down menu.
The switch supports a DHCP client that's used to get an IP address
automatically if you set this function to Enable. When enabled, the
switch will issue the request to the DHCP server residing in the
network to get an IP address. If the DHCP server is down or does not
exist, the switch will issue the request and show the IP address as
requesting, until the DHCP server is up. Before getting an IP address
from the DHCP server, the device will not continue booting
procedures. If this field is set to Disable, you must type in the IP
address manually. For more details about IP address and DHCP, see
Section3.5.
The default setting is Disable.
If DHCP is set to Disable, you can type in new IP settings. Then click
on the Apply button.
When DHCP is disabled, the default setting is 192.168.1.1.
If DHCP is enabled, this field is filled by the DHCP server and will not
allow you to manually type it in.
An IP device in a network must own its IP address, composed of a
Network address and a Host address; otherwise, it can't
communicate with other devices. Subnet mask is designed to
provide more network addresses. The network classes A, B, and C
are all too large to fit for almost all networks; subnet mask solves this
problem. The subnet mask uses some bits from the host address
and makes an IP address look like a network address, subnet mask
number, and host address. This reduces the total IP number that a
network can support, by the amount of 2 power of the bit number of
subnet number (2
[bit number of subnet number]
).