Hi,

ESXi offers some extented methods to capture network packets. Here are some examples.

First of all logon to your ESXi host by ssh.

To capture all traffic on a vmkernel interface use tcpdump-uw.
List all vmkernel interfaces

~ # esxcfg-vmknic -l
Interface  
vmk0    .....   
vmk1    .....   

Continue reading ESXi: Capture Network packets on a vSwitch port or on a VM’s NIC →