def startStopIgmpHostNgpf(self, igmpHostObjList, action='start'):
        """
        Description
            Start or stop IGMP Host protocol

        Parameters
            igmpHostObjList: Provide a list of one or more IGMP host object handles to start or stop.
                 Ex: ["/api/v1/sessions/1/ixnetwork/topology/1/deviceGroup/1/ethernet/1/ipv4/1/igmpHost/1", ...]

        action: start or stop
        """
        if type(igmpHostObjList) != list:
            raise IxNetRestApiException('igmpHostObjNgpf error: The parameter igmpHostObjList must be a list of objects.')

        url = self.ixnObj.sessionUrl+'/topology/deviceGroup/ethernet/ipv4/igmpHost/operations/'+action
        data = {'arg1': igmpHostObjList}
        self.ixnObj.logInfo('startStopIgmpHostNgpf: {0}'.format(action))
        response = self.ixnObj.post(url, data=data)
        self.ixnObj.waitForComplete(response, url+'/'+response.json()['id'])