Currently Quagga supports gnu/Linux, BSD and Solaris. Below is a list of OS versions on which Quagga runs. Porting Quagga to other platforms is not so too difficult. Platform dependent codes exist only in zebra daemon. Protocol daemons are platform independent. Please let us know when you find out Quagga runs on a platform which is not listed below.
Some IPv6 stacks are in development. Quagga supports following IPv6 stacks. For BSD, we recommend KAME IPv6 stack. Solaris IPv6 stack is not yet supported.