Avaya Troubleshooting Routers Instrukcja Naprawy Pobierz pdf (Strona 120)

Troubleshooting Routers

6-10

308656-14.00 Rev 00

•“Endstation Can Ping Local and Remote Interfaces on the Router, but Cannot

Ping a Remote Station”

Router Cannot Ping Another Local Device

When the router cannot ping another device on the network, it does not

necessarily mean that the network or router is down.

If the device you are trying to ping has never responded successfully to a ping

request because it is a new endstation, a new segment, or a new router, make sure

that you configured it properly.

If the ping was successful at one time, but is no longer successful, try to isolate the

problem to any recent changes in the network. If you do not know of any recent

changes, or if you verified that they are OK, do the following:

Try to make the endstation ping itself.

If the endstation cannot ping itself, refer to the documentation on the TCP/IP

stack and LAN card for that system and inspect the installation and

configuration.

An endstation must be able to ping itself in order to receive a ping response

from the network. However, the self-ping operation is internal and has nothing

to do with the network or the router. Therefore, an improperly configured

endstation may be able to ping itself just as easily as a properly configured

endstation.

Try to make the router ping its own interface.

If the router can ping its own interface, the interface is enabled and the

protocols are configured on the port. However, like an endstation, a

misconfigured router may be able to ping itself.

If the router cannot ping its own interface, check the log and verify the

physical status of the interface.

Try to make the endstation ping other interfaces on the same router.

Try to make the endstation ping other devices on the same segment.

Enter the Technician Interface

loadmap

<slot_no.>

command for each

slot and verify that IP and ARP are running on all slots.

Verify that the ARP cache only has entries for hosts on the local network.

Refer to the MIB object wfIpNetToMediaEntry to locate the ARP cache.

1 2 ... 115 116 117 118 119 120 121 122 123 124 125 ... 267 268

Brak uwag

Avaya Troubleshooting Routers Instrukcja Naprawy Strona 120