debug ipv6 nd

Enables Neighbor Discovery (ND) debug logs and displays the debugging information about dropped Neighbor Solicitation (NS) and Neighbor Advertisement (NA) packets.
Syntax
debug ipv6 nd { all | cache | error| event | fsm | mct | nh-prog | packet | proxy | timer }
no debug ipv6 nd{ all | cache | error| event | fsm | mct | nh-prog | packet | proxy | timer }
Parameters
all
Specifies all debugs.
cache
Specifies ND cache operations.
error
Specifies errors.
event
Specifies events.
fsm
Specifies neighbor state changes.
mct
Specifics IPv6 mct debug logs.
nh-prog
Specifies nexthop updates.
packet
Specifies protocol packets.
proxy
Specifies proxy.
timer
Specifies neighbor timers.
Modes

Privileged EXEC mode

Usage Guidelines

The no form of the command disables the ND debug logs.

Examples

The following example shows the ND debug logs.

device# debug ipv6 nd

ipv6: nd debugging is on
device(config)#ND Inspect: src-ip, src-mac mismatch, packet dropped rx-sip
2001:DB8::1 rx-smac 0000.0000.0066 inspect-ip 2001:DB8::1 inspect-mac
0000.0000.0088 vlan_id 2 vrf_id 0
device(config)#show ipv6 neighbor inspection statistics
Total number of ND Solicit received 4
Total number of ND Adevert received 4
Total number of ND dropped 6
History
Release version Command history
10.0.00 Support for IPv6 MCT debug logs was added.
Parent topic: Debug Commands H - P