Tag: nat
NAT Extendable
Scenario: Your NAT configuration seems to work fine but you need to create a couple of static entries so one of your internal hosts is reachable using multiple IP addresses. Let’s see what you can do! Goal: All…
Read More »NAT Virtual Interface
Scenario: After passing the CCNA exam you feel like you could do anything with NAT. You just started at a new job as a junior network engineer but to your surprise the router you are working on doesn’t…
Read More »NAT Overlapping Networks
Scenario: Fruity international has bought Juicy Corporate and is merging the companies into a new one called “Fruity Juicy”. You are the network engineer responsible for the network migration. Unfortunately both networks are using the same address space…
Read More »Static PAT (Port Forwarding)
Scenario: You are a trainee for a large international website covering a wide range of topics on automobiles. You are using NAT and PAT for connectivity to the Internet but you also have a number of hosts on…
Read More »NAT and Route-Map
Scenario: Your network has two connections to the outside world. One is used for the Internet and the other one connects to a partner. You are using NAT to translate the IP addresses of your LAN but you…
Read More »NAT PAT Overload
Scenario: Emma and Alice are in trouble. They just got a new Internet connection but they forgot to mention to the Internet provider that they required two public IP addresses so they both can access the Internet at…
Read More »NAT Dynamic
Scenario: Your friends Jack and Joe recently switched to a new Internet provider and instead of getting a single public IP address they have received multiple global IP addresses. To make sure all global IP addresses are used…
Read More »NAT Port Forwarding
Scenario: Your network at home has been configured for NAT so you and the rest of your family can access the Internet. You also have a webserver and a SSH server at home and you would like those…
Read More »NAT TCP Load Balancing
Scenario: You are working as a networking trainee and in your pasttime you enjoy troubleshooting networks. Your roommate has a huge website and has bought multiple webservers to host the website. He doesn’t have any more money for…
Read More »IPv6 NAT-PT Static
Scenario: You are working for a large international mining company and responsible for the migration strategy towards IPv6. The ISP has run out of IPv4 addresses and can only supply you with fresh new IPv6 addresses. In order…
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