How do you define active ? Communicate in the last minute ? 5 minutes ? I would certainly start with a "show ip arp". It will show all IP addresses the router have talked with in the last 4 hours. If this router is the default gateway for all the host on the LAN segment, you should be very close to get what you are looking for. If you have access to host, you could simply run a ping scan.
Pinging a broadcast address may get you some response but it depends on the OS running on the host. Since the "smurf attack", I suspect that most OS today will not answer to ping broadcast. I know that Windoz don't. Kevin Md Nazri wrote: > hi all, > > i really need to know the ip address of all active host in LAN side. how do > i achive this from router ? i tried using broadcast ping, ping x.x.x.255 > (x.x.x=LAN ip) but it doesn't work...any xtra config i've to add in ...pls > help > > TQ > > rgds > nazri Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=34938&t=34934 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
