It's quite natural that it might come a moment when we need to change (ie reconfigure) IP settings of the vMA. But nowhere it's written how to achieve this! All we know is that if we fire up a newly installed vMA, we have a console to configure IP settings. But how to re-fire up this 1st time console? There's visibly none!
Fortunately, vMA is based on RedHat, so this is the command we need to run:
sudo system-config-network
Applies to vMA for ESXi 4.1.