Unable to install ipmitool?

Hi there!

I am trying to install ipmitool using following command "brew install ipmitool" but it gives me below output.

arun-srinivasan:Desktop arun.srinivasan$ brew install ipmitool

Error: No available formula with the name "ipmitool"

==> Searching for a previously deleted formula...

Error: No previously deleted formula found.

==> Searching for similarly named formulae...

==> Searching local taps...

Error: No similarly named formulae found.

==> Searching taps...

==> Searching taps on GitHub...

Error: No formulae found in taps.

Could anyone help me to install the same? I was using this in elcapitan version. now i've upgraded to sierra.