How to Configure Static NAT on Cisco Router in GNS3 | SYSNETTECH Solutions
30This video shows you how to enable Static NAT on Cisco Router using GNS3 and VMware virtual machine.
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To setup #Static #NAT:
Step 1: If you have not installed GNS3 on Windows, Linux, or macOS before, please refer to the following videos.
Windows ➦ https://www.youtube.com/watch?v=yuJ5qXFpr7Q
Linux / Debian ➦ https://www.youtube.com/watch?v=_HsKS4iwr3M
Linux / Linux Mint ➦ https://www.youtube.com/watch?v=XU6gf_Reiuk
Linux / Ubuntu ➦ https://www.youtube.com/watch?v=8atzceBgN-c
macOS ➦ https://www.youtube.com/watch?v=MWStTRpwqBY
Step 2: Once you have done the setup, add the Cisco Router IOS to GNS3.
Step 3: Using a VMware virtual machine will help you better understand Static NAT.
Step 4: After completing the preparations to configure NAT on the Router, add one Router, and Switch to the workspace.
Step 5: Cable the network devices and run them.
Step 6: To configure static NAT, first, specify the LAN IP address. Note the IP block you use on your local network for WAN to the workspace.
Step 7: Configure the IP address of the LAN interface of the Router.
Step 8: Use the ip address dhcp command to assign the IP address to the Router's WAN interface.
Step 9: Test connectivity by pinging the Google DNS server, for example, from the virtual machine.
Step 10: Ping will fail because Static NAT is not configured.
Step 11: Open R1's CLI prompt and execute the commands in the 6:25 timeframe in order. Also, define the INSIDE and OUTSIDE fields of your network topology.
Step 12: Once you have configured Static NAT, ping to the Google DNS server via the virtual machine. This time the ping operation will be successful.
Step 13: You can verify Static NAT with show commands.
Show commands:
➦ show ip nat statistics
➦ show ip nat translation
➦ show log
Debug commands:
➦ debug ip nat translations
➦ debug ip packet
Step 14: Don't forget to subscribe to our YouTube channel for more videos on Cisco networking training with #GNS3!
What is Static NAT?
Static NAT creates a fixed translation of real address(es) to mapped address(es).With dynamic NAT and PAT, each host uses a different address or port for each subsequent translation. Because the mapped address is the same for each consecutive connection with static NAT, and a persistent translation rule exists, static NAT allows hosts on the destination network to initiate traffic to a translated host (if an access list exists that allows it).
The main difference between dynamic NAT and a range of addresses for static NAT is that static NAT allows a remote host to initiate a connection to a translated host (if an access list exists that allows it), while dynamic NAT does not. You also need an equal number of mapped addresses as real addresses with static NAT.
Source: https://www.cisco.com/c/en/us/td/docs/security/asa/asa82/configuration/guide/config/nat_static.html
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───────────────RELATED VIDEOS───────────────
➊ How to Configure Dynamic NAT
➦ https://www.youtube.com/watch?v=CzxXWzY0c1U
➋ How to Configure PAT
➦ https://www.youtube.com/watch?v=7yphNgE4Brc
➌ How to Configure EIGRP
➦ https://www.youtube.com/watch?v=rJC3UERvdnQ
➍ How to Configure OSPF
➦ https://www.youtube.com/watch?v=gFMvgpDSzlI
➎ How to Configure Static Routing
➦ https://www.youtube.com/watch?v=5lGwEH7yD-0
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