UDP (17), length 72, options (unknown 99 [bad length 99]), bad cksum 5f69

15:49:23.966752 44:a1:91:a4:9b:eb > 48:57:02:64:ea:1e, ethertype ARP (0x0806), length 60: Ethernet (len 6), IPv4 (len 4), Reply 10.10.103.229 is-at 44:a1:91:a4:9b:eb, length 46
15:49:24.284674 44:a1:91:a4:9b:eb > 48:57:02:64:ea:1e, ethertype IPv4 (0x0800), length 1514: (tos 0x0, ttl 64, id 12345, offset 0, flags [+], proto UDP (17), length 1500)
    10.10.103.229.krb524 > 10.10.103.81.krb524: UDP, length 1472
15:49:24.284689 44:a1:91:a4:9b:eb > 48:57:02:64:ea:1e, ethertype IPv4 (0x0800), length 86: (tos 0x0, ttl 64, id 12345, offset 1480, flags [none], proto UDP (17), length 72, options (unknown 99 [bad length 99]), bad cksum 5f69 (->b6c0)!)
    10.10.103.229 > 10.10.103.81: ip-proto-17
15:49:43.035605 44:a1:91:a4:9b:eb > 48:57:02:64:ea:1e, ethertype ARP (0x0806), length 60: Ethernet (len 6), IPv4 (len 4), Reply 10.10.103.229 is-at 44:a1:91:a4:9b:eb, length 46
15:49:43.317489 44:a1:91:a4:9b:eb > 48:57:02:64:ea:1e, ethertype IPv4 (0x0800), length 1514: (tos 0x0, ttl 64, id 12345, offset 0, flags [+], proto UDP (17), length 1500)
    10.10.103.229.krb524 > 10.10.103.81.krb524: UDP, length 1472
15:49:43.317502 44:a1:91:a4:9b:eb > 48:57:02:64:ea:1e, ethertype IPv4 (0x0800), length 86: (tos 0x0, ttl 64, id 12345, offset 1480, flags [none], proto UDP (17), length 72, options (unknown 99 [bad length 99]), bad cksum 5f69 (->b6c0)!)
    10.10.103.229 > 10.10.103.81: ip-proto-17
^C

[root@bogon ~]# tcpdump -i enahisic2i3 ether src  44:A1:91:A4:9B:EB  -env 
tcpdump: listening on enahisic2i3, link-type EN10MB (Ethernet), capture size 262144 bytes
16:05:32.446783 44:a1:91:a4:9b:eb > 48:57:02:64:ea:1e, ethertype ARP (0x0806), length 60: Ethernet (len 6), IPv4 (len 4), Reply 10.10.103.229 is-at 44:a1:91:a4:9b:eb, length 46
16:05:32.876964 44:a1:91:a4:9b:eb > 48:57:02:64:ea:1e, ethertype IPv4 (0x0800), length 1514: (tos 0x0, ttl 64, id 12345, offset 0, flags [+], proto UDP (17), length 1500)
    10.10.103.229.krb524 > 10.10.103.81.krb524: UDP, length 1472
16:05:32.876979 44:a1:91:a4:9b:eb > 48:57:02:64:ea:1e, ethertype IPv4 (0x0800), length 86: (tos 0x0, ttl 64, id 12345, offset 1480, flags [none], proto UDP (17), length 72, options (unknown 99 [bad length 99]), bad cksum 5f69 (->b6c0)!)
    10.10.103.229 > 10.10.103.81: ip-proto-17
16:06:08.306776 44:a1:91:a4:9b:eb > 48:57:02:64:ea:1e, ethertype ARP (0x0806), length 60: Ethernet (len 6), IPv4 (len 4), Reply 10.10.103.229 is-at 44:a1:91:a4:9b:eb, length 46
16:10:04.456793 44:a1:91:a4:9b:eb > 48:57:02:64:ea:1e, ethertype ARP (0x0806), length 60: Ethernet (len 6), IPv4 (len 4), Reply 10.10.103.229 is-at 44:a1:91:a4:9b:eb, length 46
16:10:04.877373 44:a1:91:a4:9b:eb > 48:57:02:64:ea:1e, ethertype IPv4 (0x0800), length 1514: (tos 0x0, ttl 64, id 12345, offset 0, flags [+], proto UDP (17), length 1500)
    10.10.103.229.krb524 > 10.10.103.81.krb524: UDP, length 1472
16:10:04.877388 44:a1:91:a4:9b:eb > 48:57:02:64:ea:1e, ethertype IPv4 (0x0800), length 86: (tos 0x0, ttl 64, id 12345, offset 1480, flags [none], proto UDP (17), length 72, options (unknown 32 [bad length 63]), bad cksum 5f69 (->8b63)!)
    10.10.103.229 > 10.10.103.81: ip-proto-17
16:11:28.936783 44:a1:91:a4:9b:eb > 48:57:02:64:ea:1e, ethertype ARP (0x0806), length 60: Ethernet (len 6), IPv4 (len 4), Reply 10.10.103.229 is-at 44:a1:91:a4:9b:eb, length 46
16:11:29.254347 44:a1:91:a4:9b:eb > 48:57:02:64:ea:1e, ethertype IPv4 (0x0800), length 1514: (tos 0x0, ttl 64, id 12345, offset 0, flags [+], proto UDP (17), length 1500)
    10.10.103.229.krb524 > 10.10.103.81.krb524: UDP, length 1472
16:11:29.254361 44:a1:91:a4:9b:eb > 48:57:02:64:ea:1e, ethertype IPv4 (0x0800), length 86: (tos 0x0, ttl 64, id 12345, offset 1480, flags [none], proto UDP (17), length 72, options (EOL))
    10.10.103.229 > 10.10.103.81: ip-proto-17