Take the 2-minute tour ×  I'm connected to an open network, I
can see the BSSID and the SSID but I don't think DHCP is enabled
because I don't get any IP. so is there a way to find out what
is it's IP remotely ? and thanks  share|improve this question
What operation system do you use? –  Ivo Flipse Jan 23 '11 at
14:07 You are perhaps assuming that the Access Point is also the
DHCP server for the network? Do you know that to be the case? – 
Linker3000 Jan 23 '11 at 15:53  3 Answers 3  (Assuming Linux
system) Once you have the MAC address of the AP, e.g. via
iwconfig:  $ iwconfig eth1  eth1     IEEE 802.11g
ESSID:"OSU_PUB"            Retry limit:7   RTS thr:off
Fragment thr:off          Power Management:off  The AP has hw
addr 00:0D:9D:C6:38:2D so you can use tcpdump to sniff for
traffic from that hardware address, which usually will reveal
the IP address of it as the source sooner or later:  $ tcpdump
-i eth1 -s 0 -v -n ether host 00:0D:9D:C6:38:2D  13:15:49.106475
ARP, Ethernet (len 6), IPv4 (len 4), Reque