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Solution Check the routing table to see if a route exists to the network where the
Cause
Solution If a local computer is unable to ping through an attached appliance, the
Cause
Solution If the ARP table has an old or invalid entry for the device associated with
Problems with Multicast
IP700 Series Installation Guide
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interface is located. If no route exists, see "Troubleshooting Routing
Problems" on page 143.
Attached device does not have proper default route or routing
information.
computer might contain either an invalid default route or invalid routing
information.
If you are using default routes from a computer, ensure that the local
interface is the default route for that computer.
ARP table has old information.
the IP address you are attempting to ping, use Voyager to delete the
invalid entry.
For information about accessing Voyager and the related reference
materials, see "Using Voyager to Configure the Network Interfaces" on
page 81.
1.
Click
.
C
ONFIG
2.
Click the ARP link in the Interfaces section.
3.
Click the Display or Remove Dynamic ARP Entries link.
4.
Click Delete for the entry you want to delete.
5.
Click
.
A
PPLY
Use tcpdump to view packets. To display packets for a specific interface,
use the command tcpdump -i interface proto igmp. (For more
information about using the tcpdump command, see CHAPTER 9, Using
tcpdump.)
Problems with Multicast
139
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