Sometimes, different network segments both use the same network ID and are connected by a router or another device. Because ARP uses broadcast packets to resolve IP addresses to hardware addresses, it would appear that computers on different network segments that use the same network ID would never be able to communicate.
Proxy ARP allows for [...]
As just discussed, IP provides a logical hierarchical address space that makes routing data from one network to another a simple task. When the datagram arrives at the local subnet, however, another protocol comes into play. The Address Resolution Protocol (ARP) is used to resolve the IP address to the hardware, to the address of [...]
IP protocol is a protocol that can be used to make a best-effort attempt to get a packet from one host to another, even when the hosts are on different networks. The Transmission Control Protocol uses IP but adds functionality that makes TCP a reliable, connection- oriented protocol. Whereas IP doesn’t require any acknowledgment that [...]
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