Thomas Kunz
Systems and Computer Engineering
7
IP Addresses and Physical Addresses
nMap IP addresses into physical addresses
–destination
host
–next
hop router
nTechniques
–encode
physical address in host part of IP address
–table-based
nARP
–table
of IP to physical address bindings
–broadcast
request if IP address not in table
–target
machine responds with its physical address
–table
entries are discarded if not refreshed