Generic Network Virtualization Encapsulation, VNI: 0x#####
Ethernet II, Src: ######## (######), Dst: ####### (######)
Destination: ###### (########)
Source: <guest OS server MAC>
Type: IPv4 (0x0800)
[Stream index: 1]
Trailer: 7172
Internet Protocol Version 4, Src: #.#.#.#, Dst: #.#.#.#
Transmission Control Protocol, Src Port: 9100, Dst Port: 55340, Seq: 0, Ack: 1, Len: 0
VMware vSphere ESXi 7.0
Set checksum offload in software for the nic sending the traffic.
#esxcli network nic software set --ipv4cso=1 -n vmnicX