CS/IS 101 Lecture Notes - Lecture 23: Dynamic Host Configuration Protocol, Network Address Translation, Link-Local Address
Document Summary
Removes private address and converts it to a public one for communication. Nat enabled routers log who sent and who is supposed to received. Networks that use nat are invisible to the public internet. Dhcp server handles ip addresses (subnet, private, gateway ip) to computers that need them. By having your device fetch dns and ip address automatically, you are making it use. Apipa fallback in case a dhcp server is not found. Apipa will always give a 169. 254. x. x address. Can"t get on the internet, but can be used for local connectivity. We"ve run out of ipv4 addresses, which is why ipv6 comes in. Ipv6 has 8 groups, separated from 7 colons. You can delete the leading zeros to avoid writing the long address. Ipv6 makes you have a minimum of two ip addresses, while ipv4 is one address + subnet. Starts with fe80:000:0000:0000:xxxx (x is auto generated) Given to computers by router to connect to internet.
