eth0 problems?

[michael]

Should I be worried about the following in /var/log/messages and my
clock being about 20 mins slow now?

Aug  4 18:33:03 veri avahi-daemon[2914]: Withdrawing address record for
fec0::8:219:d1ff:fee5:62f on eth0.
Aug  4 18:33:03 veri avahi-daemon[2914]: Leaving mDNS multicast group on
interface eth0.IPv6 with address fec0::8:219:d1ff:fee5:62f.
Aug  4 18:33:03 veri avahi-daemon[2914]: Joining mDNS multicast group on
interface eth0.IPv6 with address 2002:8258:1794:8:219:d1ff:fe
e5:62f.
Aug  4 18:33:03 veri avahi-daemon[2914]: Withdrawing address record for
2002:8258:1794:8:219:d1ff:fee5:62f on eth0.
Aug  4 18:33:03 veri avahi-daemon[2914]: Leaving mDNS multicast group on
interface eth0.IPv6 with address 2002:8258:1794:8:219:d1ff:fe
e5:62f.
Aug  4 18:33:03 veri avahi-daemon[2914]: Joining mDNS multicast group on
interface eth0.IPv6 with address 2002:8258:438d:8:219:d1ff:fe
e5:62f.
Aug  4 18:35:59 veri ntpd[2676]: Deleting interface #3 eth0,
fec0::8:219:d1ff:fee5:62f#123, interface stats: received=0, sent=0,
dropp
ed=0, active_time=20701 secs
Aug  4 18:35:59 veri ntpd[2676]: Deleting interface #5 eth0,
2002:8258:1794:8:219:d1ff:fee5:62f#123, interface stats: received=0,
sent
=0, dropped=0, active_time=20701 secs