Some things that might be relevant: libc 5.2.18, just installed BIND
4.9.3-P1. Named keeps printing out stats of some sort 20 minutes past
every hour. This I noticed that some of these errors occurred a few
minutes before named's statistic dump. Yet they do seem largely random.
Feb 18 04:38:27 grunks kernel: UDP: bad checksum. From 00000000:68 to
FFFFFFFF:67 ulen 308
Feb 18 04:43:33 grunks kernel: UDP: bad checksum. From 00000000:68 to
FFFFFFFF:67 ulen 308
Feb 18 05:19:32 grunks kernel: UDP: bad checksum. From 00000000:68 to
FFFFFFFF:67 ulen 308
Feb 18 06:05:40 grunks kernel: UDP: bad checksum. From 00000000:68 to
FFFFFFFF:67 ulen 308
Feb 18 06:05:42 grunks kernel: UDP: bad checksum. From 00000000:68 to
FFFFFFFF:67 ulen 308
Feb 18 07:12:26 grunks kernel: UDP: bad checksum. From 00000000:68 to
FFFFFFFF:67 ulen 308
Feb 18 07:17:32 grunks kernel: UDP: bad checksum. From 00000000:68 to
FFFFFFFF:67 ulen 308
Feb 18 07:17:34 grunks kernel: UDP: bad checksum. From 00000000:68 to
FFFFFFFF:67 ulen 308
Feb 18 08:29:26 grunks kernel: UDP: bad checksum. From 00000000:68 to
FFFFFFFF:67 ulen 308
Feb 18 08:34:36 grunks kernel: UDP: bad checksum. From 00000000:68 to
FFFFFFFF:67 ulen 308
Feb 18 09:10:34 grunks kernel: UDP: bad checksum. From 00000000:68 to
FFFFFFFF:67 ulen 308
Feb 18 09:51:35 grunks kernel: UDP: bad checksum. From 00000000:68 to
FFFFFFFF:67 ulen 308
Feb 18 10:12:03 grunks kernel: UDP: bad checksum. From 00000000:68 to
FFFFFFFF:67 ulen 308
Feb 18 10:17:11 grunks kernel: UDP: bad checksum. From 00000000:68 to
FFFFFFFF:67 ulen 308