NAT converted router

Stuff that don´t fit in the other categories.
Post Reply
User avatar
shan75
On the way to fame!
On the way to fame!
Posts: 32
Joined: 03 Dec 2009, 17:00
14
Location: india
Contact:

NAT converted router

Post by shan75 »

if the router is NAT converted is there any way to know the total host and the address of these of hosts behind the router?

please help..

thanks .... 8O

User avatar
l0ngb1t
Fame ! Where are the chicks?!
Fame ! Where are the chicks?!
Posts: 598
Joined: 15 Apr 2009, 16:00
14
Contact:

Post by l0ngb1t »

and even if the router is not converted as NAT... how do i know the number and the IP's of hosts behind it...
this is a good topic we must get replys :P :roll: :oops:
There is an UNEQUAL amount of good and bad in most things, the trick is to work out the ratio and act accordingly. "The Jester"

User avatar
bad_brain
Site Owner
Site Owner
Posts: 11636
Joined: 06 Apr 2005, 16:00
18
Location: In your eye floaters.
Contact:

Post by bad_brain »

in case of NAT: not possible, at least as long as the router is not catastrophically bad configured. the only way I see to discover hosts without scanning the whole IP-range would be to send a broadcast...but this only works for IPs in the same subnet as the one that send the broadcast. but depending on the (target) host configuration not all hosts really reply, and modern routers also block those requests because in the earlier days of computing such requests were often abused for DoS attacks.

for more detailed info start here:
http://en.wikipedia.org/wiki/IP_multicast

:wink:
Image

Post Reply