Installing and Administering LAN/9000 Software

Chapter 4 105
Troubleshooting LAN/9000
Diagnostic Flowcharts
Flowchart 9 Procedures
A. Execute: ping from known good hostthrough gateway to
known good host on remote network. This will test
gateway connectivity to the remote network. For more
information on ping(1M), refer to chapter 6.
B. ping successful? If the executing ping returned
successfully, the problem may exist in the routing table
for the problem host. Go to C.
C. Execute netstat -rn. To display gateway routing
information in numerical form, execute:
netstat -rn
D. Direct route to remoteor default route to gateway? If the
route exists, go to F. If not, go to E to add a new route.
E. Add route entry on local system. Use the route(1M)
command to add a route entry to the route table on the
local system. Refer to route(1M) for a complete
description of the command.
F. Routing table on remote OK? Check that the routing
information on the remote system is OK.
G. Correct routing table. If the routing information is
incorrect, correct it using the route(1M) command.