What is the difference between Virtual Server and 1:1 NAT?

Zyxel_Emily
Posts: 994
Guru Member





Question
I would like to use NAT feature to publish an internal server for external users. On the NAT Add/Edit page, there are Virtual Server and 1:1 NAT. Which one should I choose? What is the difference between Virtual Server and 1:1 NAT?
I would like to use NAT feature to publish an internal server for external users. On the NAT Add/Edit page, there are Virtual Server and 1:1 NAT. Which one should I choose? What is the difference between Virtual Server and 1:1 NAT?
Answer
Both Virtual Server and 1:1 NAT are able to publish internal servers to Internet.
The difference between Virtual Server and 1:1 NAT is that 1:1 NAT has an additional SNAT (source NAT) while Virtual Server does not.
Configuration
In this example, create a NAT rule and select 1:1 NAT.
Original IP: 61.222.75.17
Mapped IP: 192.168.1.33
Then the outgoing interface for the server 192.168.1.33 uses 61.222.75.17 to access Internet.

Test Result

Test Result
You can check SNAT flow In MAINTENANCE > Packet Flow Explre > SNAT Status.
The source IP 192.168.1.33 access to Internet with a SNAT routing. The outgoing address will be replaced by Original IP 61.222.75.17.


Tagged:
0
Categories
- 7.8K All Categories
- 1.6K Nebula
- 55 Nebula Ideas
- 53 Nebula Status and Incidents
- 4.3K Security
- 217 Security Ideas
- 908 Switch
- 40 Switch Ideas
- 808 WirelessLAN
- 16 WLAN Ideas
- 5K Consumer Product
- 131 Service & License
- 260 News and Release
- 49 Security Advisories
- 6 Education Center
- 573 FAQ
- 273 Nebula FAQ
- 132 Security FAQ
- 73 Switch FAQ
- 72 WirelessLAN FAQ
- 7 Consumer Product FAQ
- Documents
- 34 Nebula Monthly Express
- 67 About Community
- 40 Security Highlight