On Mon, Apr 04, 2011 at 11:34:25AM -0500, Russell Jones wrote: > [root at hostname1 ~]# tcpdump -vvvvv 'port 53' > tcpdump: listening on eth0, link-type EN10MB (Ethernet), capture size 96 > bytes > > 11:07:24.989304 IP (tos 0x0, ttl 64, id 65039, offset 0, flags [DF], > proto: UDP (17), length: 60) hostname1.59725 > > vdns1-hc.example.com.domain: [bad udp cksum 2bd2!] 26130+ AAAA? > hostname2.example.com. (32) Check https://bugzilla.redhat.com/show_bug.cgi?id=140528 and see if that resolves your issue. -- rgds Stephen