How to find unknown IP
- Thread starter capovawi
- Start date
gareththegiant
Honorable
- Dec 15, 2015
- 375
- 0
- 10,960
log into your router you may be able to find it or alternatively use an IP scanner you can even get some phone apps that will do it.
It likely is going to be a massive problem. It is not so much the unknown octets in the first 2 positions it is you not know the subnet mask.
In general a network that functions all devices will have the same subnet mask and the corresponding bit position will be the same. The problem with any scanner software is it must send out ARP messages to find the device. The ARP is sent on the broadcast IP for the subnet. If the subnet mask it wrong it will send the ARP on the wrong ip and the machine will never hear it.
In general a network that functions all devices will have the same subnet mask and the corresponding bit position will be the same. The problem with any scanner software is it must send out ARP messages to find the device. The ARP is sent on the broadcast IP for the subnet. If the subnet mask it wrong it will send the ARP on the wrong ip and the machine will never hear it.
failboat
Splendid
- Feb 19, 2010
- 1,905
- 51
- 21,390
If you're lucky it will be in the lease table of your router's DHCP server.
If it's listed anywhere it probably won't be past layer2.
The mac table will have it's mac address and port.
Plug it into your router if your switch has no management.
If it's listed anywhere it probably won't be past layer2.
The mac table will have it's mac address and port.
Plug it into your router if your switch has no management.
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