Troubleshooting

Diagnostic Flowcharts

 

Flowchart 3a: ARP Test

 

Validates arp(1M) entries and remote host availability.

Figure 4-4

Flowchart 3a

 

ARP Test

Execute

ping <remotehost> 2000 -n 1

Is remote host

 

NO

Remote

YES

 

entry in ARP

 

 

 

 

host up?

 

 

 

cache?

 

 

 

 

 

 

 

 

 

 

YES

 

 

 

 

 

NO

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Bring up

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

remote host

 

 

 

 

 

 

 

 

 

 

Is the ARP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NO

Use ARP to

 

 

entry correct

 

 

 

 

correct and

 

 

 

 

 

 

 

 

and complete

 

 

 

 

complete the

 

 

 

 

 

 

 

 

?

 

 

 

 

entry

 

 

 

 

 

 

 

 

 

 

 

 

 

YES

ping Test

Flowchart 3a Procedures

Execute ping(1M) to remote host so that ARP entry is added. Whether or not ping is successful, proceed to the next step.

Use arp(1M) to verify that an entry exists for the remote host in your system's ARP cache, executing arp hostname.

If there is no ARP entry for the remote host, check to see if the remote host is up. If not, bring up remote host and continue to ping Test.

If the ARP entry is correct or complete, continue to ping Test. Otherwise, use arp(1M) to enter the correct station address of the remote system and continue to ping Test.

Chapter 4

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