Network Address Translation is a great protocol, but you need to understand when you should use static Network Address Translation, Dynamic Network Address Translation, or NAT Overload, also called Port Address Translation. This video will show you how dynamic NAT is used and when, and provide information on why you should be using NAT overload instead.
- [Instructor] Basically dynamic NAT really means…we a have a pool of addresses that we'll use…to provide real IP addresses…to a group of users on the inside.…Because we don't use port numbers,…we must have real IP addresses for every user who's trying…to get outside the local network simultaneously.…This doesn't give us any value over static NAT…other than we don't have…to configure every line for every user.…Let's go ahead and take a look at an example here.…First thing we wanna do…is make sure our interface's markings are done.…That is our number one step.…
The next command we wanna look at…with configuring dynamic NAT,…is our IP NAT inside source list one as our access list…that says who could use my pool.…And the name of the pool is case-sensitive.…We must understand access list to configure dynamic NAT.…So now number two, we'll make sure who can use the pool.…Number three, is to verify our access list.…Access list one.…Notice I'm just using simple standard access list here.…
Permit 10.1.1.0 network.…Well that's my IP NAT inside address isn't it?…
For more information on the CCENT exam, visit Cisco's website.
- Overview of internetworking
- The TCP/IP networking model
- Easy subnetting
- Managing Cisco IOS
- Managing Cisco networks and devices
- IP routing
- Layer 2 switching
- VLANs and InterVLAN routing
- Network address translation
Skill Level Intermediate
Internetworking devices4m 20s
3. Introduction to TCP/IP
4. Easy Subnetting
5. VLSM, Summarization, and Troubleshooting TCP/IP
6. Cisco Internetworking Operating System (IOS)
7. Managing a Cisco Internetwork
8. IP Routing
9. Layer 2 Switching
10. VLANs and InterVLAN Routing (IVR)
12. Network Address Translation (NAT)
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