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Solution
1.
Use the debugging mfib ipv6 command to display the debugging information. If IPv6 multicast
packets are found to have been discarded because of too small hop limit value, use the display
multicast ipv6 minimum-hoplimit command to view the minimum hop limit required for an IPv6
multicast packet to be forwarded. Use the undo multicast ipv6 minimum-hoplimit command on the
concerned interfaces to restore the default hop limit setting, or configure multicast packets to be
sent with a higher hop limit value from the multicast source.
2.
Use the display current-configuration command to display the IPv6 ACL rule configured on the
multicast forwarding boundary. Change the IPv6 ACL rule used in the multicast ipv6 boundary
command so that the source address of the IPv6 multicast packets and the IPv6 multicast group
address can both match the IPv6 ACL rule.
3.
Use the display current-configuration command to verify the configuration of the IPv6 multicast
filter, and change the IPv6 ACL rule used in the source-policy command so that the source address
of the IPv6 multicast packets and the IPv6 multicast group address can both match the IPv6 ACL
rule.
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Table of Contents
Troubleshooting
