IPv6 Configuration Guide K/KA/KB.15.15

Configuring Debug and Event Log Messaging
To specify the types of debug and Event Log messages that you want to send to an external device:
• Use the debug ipv6... command to send messaging reports for the following types of
switch events:
◦ DHCPv6 client
◦ DHCPv6 relay
◦ forwarding
◦ neighbor discovery
◦ OSPFv3
◦ packets
• Use the logging [ severity severity-level | system-module system-module
] command to select a subset of Event Log messages to send to an external device for
debugging purposes according to:
◦ Severity level
◦ System module
Debug Command
Syntax
[no] debug ipv6 [ debug-type ]
Configures the types of IPv6 messages that are sent to Syslog servers or other
configured debug destinations, where debug-type is any of the following event
types:
(none)
all IPv6 events
dhcpv6-client [ events | packets ]
one of the following IPv6 client debug message types
events
DHCPv6 client events
packets
DHCPv6 client packets
dhcpv6-relay [ events | packets ]
one of the following IPv6 relay debug message types
events
DHCPv6 relay events
packets
DHCPv6 relay packets
forwarding
IPv6 forwarding events
nd
IPv6 neighbor discovery events
284 IPv6 Diagnostic and Troubleshooting