D-Link DFL-300 User Manual - Page 25

Multiple NAT, Subnet Mask - default ip

Page 25 highlights

Multiple NAT Multiple NAT allows local port to set multiple subnetworks and connect with the internet through different external IP Addresses. For instance: The lease line of a company applies several real IP Addresses 168.85.88.0/24,and the company is divided into R&D department, service, sales department, procurement department, accounting department, the company can distinguish each department by different subnetworks for the purpose of convenient management. The settings are as the following: 1.R&D department subnetwork:192.168.1.11/24(Internal) 168.85.88.253(External) 2. Service department subnetwork: 192.168.2.11/24(Internal) 168.85.88.252(External) 3.Sales department subnetwork: 192.168.3.11/24(Internal) 168.85.88.251(External) 4.Procurement department subnetwork 192.168.4.11/24(Internal) 168.85.88.250(External) 5.Accounting department subnetwork 192.168.5.11/24(Internal) 168.85.88.249(External) The first department(R&D department) was set while setting interface IP, the other four ones have to be added in Multiple NAT, after completing the settings, each department use the different WAN IP Address to connect to the internet. The settings of each department are as the following Service IP Address:192.168.2.1 Subnet Mask:255.255.255.0 Default Gateway:192.168.2.11 The other departments are also set by groups; this is the function of Multiple NAT. - 25 -

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- 25 -
Multiple NAT
Multiple NAT allows local port to set multiple subnetworks and connect
with the internet through different external IP Addresses.
For instance: The lease line of a company applies several real IP Addresses
168.85.88.0/24
and the company is divided into R&D department, service,
sales department, procurement department, accounting department
the
company can distinguish each department by different subnetworks for the
purpose of convenient management. The settings are as the following
1.R&D department subnetwork
192.168.1.11/24(Internal)
ÅÆ
168.85.88.253(External)
2. Service department subnetwork
192.168.2.11/24(Internal)
ÅÆ
168.85.88.252(External)
3.Sales department subnetwork
192.168.3.11/24(Internal)
ÅÆ
168.85.88.251(External)
4.Procurement department subnetwork 192.168.4.11/24(Internal)
ÅÆ
168.85.88.250(External)
5.Accounting department subnetwork 192.168.5.11/24(Internal)
ÅÆ
168.85.88.249(External)
The first department(R&D department) was set while setting interface IP,
the other four ones have to be added in Multiple NAT, after completing the
settings, each department use the different WAN IP Address to connect to
the internet. The settings of each department are as the following
Service
IP Address
192.168.2.1
Subnet Mask
255.255.255.0
Default Gateway
192.168.2.11
The other departments are also set by groups; this is the function of Multiple
NAT.