Does anyone know how to discover the IP address of a device if they have the MAC address? I have physical access to the device however a factory reset is not possible. I do not know the network or IP address...
I find myself getting new contracts all the time were the customer doesn't have IP addresses for equipment that has been shelved.
Yes there is a console port. I do not have a computer with a serial port at the moment.. There are alot of times were I have to configure equipment that I do not have the IP address for. I find my self resetting equipment all the time. I would try arp interogation however it takes a long time for class A addressing... I am hoping someone has a really cool trick to share with us...
The default IP address for 3Com switches is 169.254.100.101
Connect a patch cable to the switch and set your pc adress to 169.254.100.102 and you should be set. Unless someone has already changed the IP address on the switch.
One "undocumented" tip. If you don't have access to the passwords and errata, use these codes and perform a factory reset :
Login: 3comcsoPassword: RIP000
However I seriously recommend a null modem cable if you have to deal with issues like this on a regular basis. You can pick up on that connects to your USB port these days ;)
Cheers.
RohitBagchi
Adding to above, once you have set the IP on your computer, you can use IE / Firefox / ... to connect to the switch. I know its obvious, but :D
memo_tnt
If there is a router in your network, then it becomes easy to find its IP
for cisco router, use "show arp" - it will give you a listing of the MAC addresses and their corresponding IPs. \
and from a DOS
assuming your subnet was 192.168.1.0 with a subnet of 255.255.255.0
do