In this video, explore the address resolution protocol, used to resolve IP addresses.
- I'm a computer, and I've got this IP packet…that I want to send to another computer…on my broadcast domain.…Now to do that, I can't just send an IP packet by itself.…I'm running, I don't know, say gigabit ethernet,…so I need to put MAC addresses…and make an ethernet frame to put this IP packet inside of.…So to do that, I'm gonna have to get the MAC address…of the other computer so that I can…go ahead, make an ethernet frame…out of the whole shebang, and sent it out…so that that right computer can get it.…Now to do that I've got a problem.…
And the problem is, if this is me over here,…and I want to send it to this guy,…I may know his IP address 'cause I've got an IP packet,…but I don't know his MAC address.…So what I'm gonna have to do is…go through a process called ARP.…ARPing is a broadcast that sends out onto a network…that says, I know your IP address.…If you have this IP address, please respond back.…So let me show you how all this works.…All right, now I've got my small network here.…I've gone ahead and thrown some IP addresses…
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- Dynamic and static IP addressing
- Rogue DHCP servers
- Network Address Translation (NAT)
- Forwarding ports
- Dynamic and static routing
- Routing protocols: RIP, OSPF, and BGP