tcpdump: listening on eth1.210, link-type EN10MB (Ethernet), capture size 262144 bytes
00:43:15.822634 IP6 (flowlabel 0x5eddc, hlim 64, next-header TCP (6) payload length: 40) a5c:1204:84c4:847e:950e:2b3d::.47876 > 2a00:1450:400f:803::2004.80: Flags [S], cksum 0x9385 (incorrect -> 0xb9fe), seq 3303122772, win 64800, options [mss 1440,sackOK,TS val 1906273141 ecr 0,nop,wscale 7], length 0
00:43:16.831964 IP6 (flowlabel 0x23caf, hlim 64, next-header TCP (6) payload length: 40) a5c:1204:84c4:847e:950e:2b3d::.47876 > 2a00:1450:400f:803::2004.80: Flags [S], cksum 0x8f93 (incorrect -> 0xb60c), seq 3303122772, win 64800, options [mss 1440,sackOK,TS val 1906274151 ecr 0,nop,wscale 7], length 0
00:43:17.855958 IP6 (flowlabel 0xbfb8e, hlim 64, next-header TCP (6) payload length: 40) a5c:1204:84c4:847e:950e:2b3d::.47876 > 2a00:1450:400f:803::2004.80: Flags [S], cksum 0x8b93 (incorrect -> 0xb20c), seq 3303122772, win 64800, options [mss 1440,sackOK,TS val 1906275175 ecr 0,nop,wscale 7], length 0
00:43:18.879949 IP6 (flowlabel 0x0a1b1, hlim 64, next-header TCP (6) payload length: 40) a5c:1204:84c4:847e:950e:2b3d::.47876 > 2a00:1450:400f:803::2004.80: Flags [S], cksum 0x8793 (incorrect -> 0xae0c), seq 3303122772, win 64800, options [mss 1440,sackOK,TS val 1906276199 ecr 0,nop,wscale 7], length 0