you can verify by looking at the NTP traffic logs and corelate...
i tried to distinguish each field. This is basically a rule for block IP v 6
10590
Timestamp 17/05/2009 9:10:47 AM
Action:Blocked
Severity:10 Outgoing
Service: IPv6 [type=0x86DD]
remote Host :0.0.0.0
remote MAC:33-33-00-01-00-03
localhost:0 0.0.0.0
local mac: 00-1C-BF-1D-E8-2E
locla port:34525
user:bret
userdomain:2020GROUP
location:Default
occurences:1
begin time:17/05/2009 9:09:46 AM
end time:17/05/2009 9:09:46 AM
rile name:Block IPv6
Pete!