| A | B |
|---|
| TCP/IP configuration utilities | Ipconfig, winipcfg, config, and ifconfig |
| TCP/IP Route-tracing utilities: | traceroute, tracert, and iptrace |
| TCP/IP utility Packet Internet groper | ping |
| TCP/IP utility Address Resolution Protocol | ARP |
| TCP/IP utility Reverse Address Resolution Protocol | RARP |
| Ping can be used with either the hostname or the IP address to test | IP connectivity |
| Ping works by sending an | ICMP echo request to the destination computer. |
| If a computer receives an ICMP echo request or pint it sends back | an ICMP echo reply message. |
| It is possible to use Ping to find the | IP address of a host when the name is known. |
| MAC addresses are recognized in | the local network |
| ARP is the means by which networked computers map | Internet Protocol (IP) addresses to physical hardware (MAC) addresses |
| ARP builds and maintains a table called the | ARP cache, which contains mappings of IP address to MAC address. |
| ARP provides the protocol rules for making the | IP - MAC correlation and providing address conversion in both directions. |
| The ARP command arp -a | displays the cache |
| The ARP command arp -s | adds a permanent IP to MAC mapping |
| The ARP command arp -d | deletes an entry form the ARP cache |
| Machines that do not know their own IP addresses use | Reverse Address Resolution Protocol (RARP). |
| RARP provides the rules by which the physical machine in a LAN can | request to learn its IP address from a gateway server Address Resolution Protocol (ARP) table or cache |
| ARP maps | IP-to-MAC addresses |
| RARP maps | maps MAC-to-IP addresses |
| returns the IP address for a given hostname or find the host name for a specified IP address | NSLOOKUP.EXE |
