Join Bill Ferguson for an in-depth discussion in this video Understanding DNAT, part of Learning VMware NSX.
- In the previous section we discussed ESNAT…and as you remember I said that…it's mutually exclusive to DNAT.…They're not the same thing.…So if that's the case then what is DNAT?…Well the purpose of Destination NAT translation…what we affectionately refer to as DNAT…is that it changes the destination address…of a packet to another destination address.…It can change IP addresses and it can change ports as well.…
Now DNAT does not change the…source address of the packet in any way.…So what do we use it for?…Well for one thing it allows the user to connect to…an internal resource without ever knowing…the actual IP address to which they're connected.…So why would that be a good idea?…Well because it hides the actual internal address…of the device and substitutes another address.…So as you can see that would improve security…and it also gives me some flexibility…in regards to managing those addresses.…
But what you should fully understand is that it's…totally mutually exclusive from the source NAT translation.…Destination NAT translation is an entirely separate idea.…
VMware Certified Instructor Bill Ferguson covers the basics of NSX (including NSX components) and techniques for creating a software-defined data center. He shows how to configure a controller cluster, prepare hosts for VXLAN networking, and configure logical switches and distributed routers. Later in the course, Bill configures static and OSPF routing, load balancing, and a simple VPN, as well as high availability with NSX Edge. By the end of the training, viewers should be able to use NSX on top of their existing network resources to improve performance, deploy services, and increase security—without any additional hardware.
- Overview of virtual networks and NSX components
- Configuring controller clusters, logical switches, and distributed routers
- Following packet flow with a DLR
- Understanding Layer 2 bridging
- Configuring static and OSPF routing
- Understanding SNAT and DNAT
- Configuring load balancing
- Configuring high availability on NSX Edge