Section 3 Configuration Examples; Figure 4-1 Example Configuration 1 - Existing Network With Static Ip Address - NEC Sl2100 Networking Manual

SL2100 ISSUE 1.0
For example, if the IP address is: 172.16.0.10 and the Subnet Mask used is Class B (255.255.0.0), the
first two groups of numbers (172.16) are ignored once they reach the proper network location. The
next two groups (0.10) are the final destination within the LAN to which the connection is to be made.
For sub-netted networks, the subnet mask may be different from the default subnet masks listed above.
2.3 DHCP
Dynamic Host Configuration Protocol (DHCP) assigns a dynamic IP address. Network control may be
easier with DHCP as there is no need to assign and program individual IP addresses for the LAN
equipment. To use a dynamic IP address, a DHCP server must be provided. The SL2100 can be
configured to be the DHCP server for the customers network. Before the DHCP server in the SL2100
can be enabled, the DHCP client function must first be disabled.
When equipment, which is connected to the LAN (the DHCP client), is requesting an IP address, it
searches the DHCP server.
When the request for an address is recognized, the DHCP server assigns an IP address, Subnet
mask, and the IP address of the router, based on NEC SL2100 system programming.
S 3 CONFIGURATION EXAMPLES
ECTION
The following configuration examples illustrate a typical network configuration for an existing network
that uses a static address and a typical configuration for a new network that uses a dynamic address.
3.1 Example Configuration 1 - Existing Network with Static Addressing
Figure 4-1 Example Configuration 1 - Existing Network with Static IP Address on page 4-3 shows a
typical network configuration that uses Static IP Addressing.
Each client device has a manually assigned IP address in the 192.168.1.0/24 network (i.e.,
192.168.1.1 to 192.168.1.254 with a subnet mask of 255.255.255.0). They also have a default
gateway address configured (192.168.1.254) this allows the device to route packets to destinations
that exist outside of their own LAN.
4-2 General IP Configuration