I have a two system network running under ESXi5 setup as the following:
Physical server > 192.168.1.100 > cabled to a layer 2 switch Port 10
VM on a vSwitch > 192.168.1.101 > host vmnic > cabled to the same layer 2 switch, Port 11
From the physical machine, I can ping the VM. From the VM, I can't ping the physical machine. I have Wireshark running on both, and I see the ICMP get from the VM to the physical machine, the ACK gets sent, but the VM never receives it.
So VM > ICMP > vSwitch > Physical Switch > Server = Good
Ack from Server > Physical Switch > Dies at the vSwitch
Both servers are Windows 2008, with the windows firewall disabled and the service stopped. Subnet mask is 255.255.255.0 on both.
What would stop the replies from my physical server from getting to the VM on the vswitch? I can ping it, so the round trip:
Physical ICMP > Virtual > ACK to Physical = Works
Virtual ICMP > Physical > ACK back to Virtual = Dies there
I have Promiscuous mode, MAC changed and forged transmits all set to Accept on the vSwitch properties.
Any insight would really be appreciated - I'm out of ideas.
