May 2006
Intermediate to advanced
480 pages
12h 20m
English
Content preview from Understanding TCP/IPBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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5.5 ARP and RARP Protocols
If I am a station on a local network and want to communicate with another station on the same network through an IP datagram, I address a 4-byte IP address to the station in the IP datagram. In performing the transmission, I know the source IP address (my address) and the destination IP address. I can therefore complete an IP datagram. But the problem is that this IP datagram must be wrapped in a link frame, for example, in an Ethernet frame. In order to create an Ethernet frame, I need the link (6 B) addresses of both the source and the destination. I am the source and I know my link address, but I do not know the destination link address. How do I find out what this address is? The answer is by using the Address Resolution ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.