One-To-One Type - Planet Networking & Communication MH-5001 User Manual

MH-5001 User Manual

7.5.3 One-to-One type

As the above Figure 7-6 illustrated. NAT One to One type means that each local PC is translated into a unique public IP address
when the packets are forwarded out through the MH-5001. Take Connection1 for example. Its IP address and port are translated
from 192.168.40.1:2933 to 61.2.1.1:2933. But, when the packets of Connection2 are forwards out, the source IP address is translated
to another dedicated public IP address(61.2.1.2:7896).
7.5.4 NAT modes & types
The following three NAT modes are supported by MH-5001 now as the following Table 7-4.
NAT mode Description
None The MH-5001 is in routing mode without performing any address translation.
Basic The MH-5001 automatically performs Many-to-One NAT for all LAN/DMZ subnets.
The MH-5001 can be manually configured with Many-to-One, and Many-to-Many, One-to-One, and
Full Feature
bidirectional. One-to-One rules to do policy-based NAT.
If you choose Full Feature mode of NAT at Table 7-4, you may need to edit the rule by yourself. Then you must determine the NAT
type in the NAT rule. What meaning does each NAT type represent? How to determine which NAT type is best choice for you. You
can lookup the explainations and suggestions at Table 7-5.
Type
Map a pool of private IP addresses to a single
Many-to-One
public IP address chosen from the WAN ports.
Figure 7-6 NAT One-to-One type
Table 7-4 NAT modes overview
Description
If the public IP addresses of your company is insufficient, and
you prefer to increase the node which can connect to the
Internet. You can just choose the Many-to-One type to fit your
request.
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Usage moment
Chapter 7
NAT