Chapter 21
Network Layer:
Address Mapping,
Error Reporting,
and Multicasting
21.1
, 21-1 ADDRESS MAPPING
The delivery of a packet to a host or a router requires
two levels of addressing: logical and physical. We need
to be able to map a logical address to its corresponding
physical address and vice versa. This can be done by
using either static or dynamic mapping.
Topics discussed in this section:
Mapping Logical to Physical Address
Mapping Physical to Logical Address
21.2
, Figure 21.1 ARP operation
21.3
, Figure 21.2 ARP packet
21.4
Network Layer:
Address Mapping,
Error Reporting,
and Multicasting
21.1
, 21-1 ADDRESS MAPPING
The delivery of a packet to a host or a router requires
two levels of addressing: logical and physical. We need
to be able to map a logical address to its corresponding
physical address and vice versa. This can be done by
using either static or dynamic mapping.
Topics discussed in this section:
Mapping Logical to Physical Address
Mapping Physical to Logical Address
21.2
, Figure 21.1 ARP operation
21.3
, Figure 21.2 ARP packet
21.4
