Changing your ESX Service Console IP

At the command line with root privileges :

To view your current IP and Netmask type:
esxcfg-vswif –l

To change your IP and Subnet Mask type:
esxcfg-vswif –i 172.30.38.20 –n 255.255.255.0 vswf0

Also you will need to change you defaul gateway and DNS :
use:
nano –w /etc/sysconfig/network

DNS nano –w /etc/resolv.conf

once you are finished restart network using:

services network restart