IP address

A

April444

New Member
I create a free wireless network with my wifi router app. It works well and you can see the IP address of connected device directly. But sometimes the addresses are changed. Is there any way to see which is which even they change the device's IP address?:eek::eek::eek:
 
Does the app provide its own DHCP server? You could extend the lease times so they don't expire as often.

I'd be wary of just having an open network though.

Edit:
You could also dump an ARP table to see the associated MAC address, which should always (for most users) remain constant while the IP may change depending on the lease.
 
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DHCP by default has a lease time of a week to a month generally before the addresses are pulled and re-used. If you created a public network for guests, having a long lease time will cause clients to pull the same IP for a longer period of time before being reused, however if your environment consists of many new users throughout the term of the DHCP lease (such as a coffee shop or restaurant), your pool would be at a greater risk of filling up and then you'd run out of addresses. You could turn your network into a class A or B, but then that would be more involved.
 
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