kernel[0]: mld6_input: src :: is not link-local (grp=::)

Hi everyone,

Since the last 24 hours I got the following kernel messages:

Sep 27 04:10:35 srv01 kernel[0]: mld6_input: src :: is not link-local (grp=::)

Sep 27 04:12:40 srv01 kernel[0]: mld6_input: src 0101:080a:01ba:d81b:0edb:bfdf:c7c3:9096 is not link-local (grp=::)

Sep 27 04:14:45 srv01 kernel[0]: mld6_input: src 0010::0080:1147:1c7f:0 is not link-local (grp=::)

Sep 27 04:16:50 srv01 kernel[0]: mld6_input: src ::207b:0007:b393:6800:0:0004 is not link-local (grp=::)

Sep 27 04:18:55 srv01 kernel[0]: mld6_input: src 63a0:1e02:043d:4986:8702:0100:0201:0030 is not link-local (grp=::)

Sep 27 04:21:00 srv01 kernel[0]: mld6_input: src ::0258:7edf:c7c3:90fd:e000:000a is not link-local (grp=::)

Sep 27 04:23:05 srv01 kernel[0]: mld6_input: src 0604:0001:c82a:1458:0206:c7c3:9022:0 is not link-local (grp=::)

Sep 27 04:25:10 srv01 kernel[0]: mld6_input: src ::1011:1213:1415:1617:1819:1a1b is not link-local (grp=::)

Sep 27 04:27:15 srv01 kernel[0]: mld6_input: src 01c5:0:0111:7f19:c7c3:9012:e000:00fb is not link-local (grp=::)

Sep 27 04:29:20 srv01 kernel[0]: mld6_input: src 0604:0001:c82a:1458:b134:c7c3:9028:0 is not link-local (grp=::)

Sep 27 04:31:25 srv01 kernel[0]: mld6_input: src 000c:2004:0100:0100:0e43:7962:6572:4c79 is not link-local (grp=::)

Sep 27 04:33:30 srv01 kernel[0]: mld6_input: src 42d3:0:0111:3e96:c7c3:9079:e000:0001 is not link-local (grp=::)

I know it tries to initiate an IPv6 connection somewhere. I totally run on IPv4, and have not used IPv6 settings anywhere on my system AFAIK. Have investigated my logs meticulously but could not find a hint where to smash this one. As it is flooding my logs every 2 minutes I would love to turn this off.

OS X 10.6.8 server running DNS, Firewall, iCal, Mail, MySQL, OD, Push Notification & Web

Any help is appreciated! Thanks in advance.