The result of my tcpdump on the LC
Server Private IP is 10.90.0.1
Virtual Server IP 213.0.0.1
16:42:07.527950 IP (tos 0x0, ttl 63, id 7912, offset 0, flags [DF], proto TCP (6), length 60)
10.90.0.1.52729 > 213.0.0.1.http: Flags [S], cksum 0x3c81 (correct), seq 1831942910, win 29200, options [mss 1460,sackOK,TS val 3479708694 ecr 0,nop,wscale 7], length 0 in slot1/tmm0 lis=
16:42:08.526658 IP (tos 0x0, ttl 63, id 7913, offset 0, flags [DF], proto TCP (6), length 60)
10.90.0.1.52729 > 213.0.0.1.http: Flags [S], cksum 0x3b87 (correct), seq 1831942910, win 29200, options [mss 1460,sackOK,TS val 3479708944 ecr 0,nop,wscale 7], length 0 in slot1/tmm0 lis=/Common/VSTEST
16:42:10.530118 IP (tos 0x0, ttl 63, id 7914, offset 0, flags [DF], proto TCP (6), length 60)
10.90.0.1.52729 > 213.0.0.1.http: Flags [S], cksum 0x3992 (correct), seq 1831942910, win 29200, options [mss 1460,sackOK,TS val 3479709445 ecr 0,nop,wscale 7], length 0 in slot1/tmm0 lis=/Common/VSTEST
16:42:14.541970 IP (tos 0x0, ttl 63, id 7915, offset 0, flags [DF], proto TCP (6), length 60)
10.90.0.1.52729 > 213.0.0.1.http: Flags [S], cksum 0x35a7 (correct), seq 1831942910, win 29200, options [mss 1460,sackOK,TS val 3479710448 ecr 0,nop,wscale 7], length 0 in slot1/tmm0 lis=/Common/VSTEST
16:42:19.527582 IP (tos 0x0, ttl 255, id 50747, offset 0, flags [DF], proto TCP (6), length 40)
213.0.0.1.http > 10.90.0.1.52729: Flags [R.], cksum 0x2f91 (incorrect -> 0x09e0), seq 0, ack 1831942911, win 0, length 0 out slot1/tmm0 lis=/Common/VSTEST