text: how would u find out whether a device is acting as a host or a router using an snmp command?   mind you that many hosts (e.g. workstation, laptop) do have multiple network interfaces and could technically act as a router.  in that case if you are an authorized snmp manager, you can try to view the machine's iproutetable (more on that see http://www.faqs.org/rfcs/rfc2096.html.)  the table's content would tell you if this machine is configured to route/forward ip packets, hence acting as a router.