I purchased a used access point/router from a computer show. It works fine but I can't figure out the IP of the device. I can't make changes without being able to access the ROM. Is there any software available that can sniff out the IP on this router??
My first guess would be 192.168.X.1, where X is a small integer (1, 2, etc). Try that and see what happens. If no joy, try pinging
255.255.255.255 (broadcast ping) or 224.0.0.1 (multicast ping) and see who responds.
Another possibility on an isolated network is to use a packet sniffer (tcpdump, ethereal, etc) to watch all traffic from ethernet addresses other than your own while you power up the router.
On unix (maybe windows too?), you could try "arp -a". If there are any IP addresses that you don't recognize, they're good candidates for belonging to your mystery box.
Alternatively, most vendors have some kind of "reset to factory default" mechanism that gets the box back into a known state without knowing anything about how it's currently configured.
I guess the seller removed the serial number tag so you can't identify the access-point, router, or whatever. Perhaps you could disclose the color and shape so it might be identified?
) at 2005-03-17 12:20 Pacific Standard Time Host 192.168.1.1 appears to be up. Host 192.168.1.50 appears to be up. Host MICRON (192.168.1.100) appears to be up. Host DELLBERT (192.168.1.101) appears to be up. Host NET44GATE (192.168.1.102) appears to be up. Host 192.168.1.255 seems to be a subnet broadcast address (returned 1 extra ping s). Nmap run completed -- 256 IP addresses (5 hosts up) scanned in 19.719 seconds
Y'er no fun. If someone was using it as an access point, and turned off the DHCP server, you'll get nothing. Assuming it has a reset button, I would stomp on it to reset everything to defaults and start over.
(Mini-rant: Why is so many people reluctant to disclose the maker and model number? Fear of numbers?)
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