DPtech FW1000 Series Firewall Products User Configuration Guide
4-150
Item
Description
Service
Allows you to select a kind of service.
Intranet address
Configure Intranet address.
Advanced configuration
Configure advanced configuration.
VRRP
Allows you to select whether is related to VRRP.
State
Allows you to select a state.
Operation
Click
add icon or
delete icon to do the operations.
To configure destination NAT configuration, you can take the following steps:
Click the
copy button of the destination NAT policy
Select the outbound interface
Configure the service type of the destination NAT policy
Configure the public address of the destination NAT server
Configure the inner IP address of the destination NAT server
After you finished the above steps, you can click
Ok
button in the upper right corner on the webpage.
Note
:
If you configure the server inner port in the advanced configuration, it will connect to the destiantion port after it
switched destination NAT.
4.4.4 One to one NAT
One to one NAT is that an internal network user accesses an external network that NAT uses an external or public IP
address to replace the original internal IP address. This address is the outbound interface address (a public IP
address) of the NAT gateway. This means that all internal hosts use the same external IP address when accessing
external networks. If only one host is allowed to access external networks at a given time. Hence, it is referred to as
“one-to one NAT”.
To enter the one to one NAT page, you can choose
Basic> Network > Firewall > One to one NAT
from navigation
tree, as shown in Figure4-10.