Serial communication in between VM and ESX?
 

I am in verse to understand the serial communication between guest and host.I have just added a serial port through VI Client selecting "Use serial port on host"(host being ESX host).If I am on VM and run :

ll > /dev/ttyS0

I understand that it should get displayed through ESX Host.
So On ESX Host, I typed:

cat /dev/ttyS0

But nothing worked !!!

Allowing a vm to access the hosts serial port will not allow communication with the host... what exactly are you trying to do ?