Ok this is probably a dumb question for whomever is good with this stuff, but I couldn't figure it out so I thought probably someone here is able to help me out.

There's a router where several devices get connected via wi-fi, and some of them are apple products. The router's 'connected DHCP LAN clients' page typically shows more than 10 devices connected, even when actually there are only a couple. Apple devices have an IP/MAC address that expires in the thousands of hours, usually 2100+, while any other device has less than 24 hours. So it seems to me that any apple device who connected in the past 3 months (!!!!) still has its own IP address on the router. Or maybe I've simply misunderstood.

So here's the question: did I get it right? Do apple products get an IP reserved for such a long time? And if that's the case, is there a way to prevent it via router settings?

Many thanks for your help, and here's a thank-you giveaway for those who provided some help:

http://www.steamgifts.com/giveaway/vhV8M/hacker-evolution-duality

1 decade ago*

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Is a setting in the router normally, see mine for example.

There you see the standard lease time is 0 (1 day) in my case. Don't quite know if apple does something weird with that, but it should be just another device connecting to the router. So if it would be actually Apple being weird, I figure it is something on the side of those devices.

Also, MAC address will, or should, not 'expire'. :P An IP address will if it is handed out through DHCP though.

1 decade ago
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I am gonna look into this a bit further, as I see I have one device with a lease time of 87 days left on my router as well, and suprise surpise, it is also an Apple device. :P

Edit:

Found something. Is not with THAT long lease times, but suggest Apple doesn't really care about the lease times set by DHCP. :/

1 decade ago
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Thanks! My router is set to lease for 24 hours too, and I think it's weird that it allows apple devices to have it for so much longer than that. Let's see if anyone else knows more about this :)

1 decade ago
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Also, if you want to get rid of it, change the DHCP pool for a moment. I changed mine from 192.168.3.1 (well, the routers LAN IP, which in turn changes the IP's being leased) to x.4.1 and then back. ^^

Will clear the list up for the time being. Untill some Apple device connects again that is.

Also, I found something online about a max lease time being set, but I think that also defaults to one day (86400 seconds). But cannot find a setting for that in my router. :P

1 decade ago
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Thanks again. I usually just reboot the router to manually empty the list, and that's precisely because I want to avoid the need for manual intervention that I'm looking for a permanent solution. I wish I could just ban anything apple from my place ;)

1 decade ago
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anyone else? any idea would be appreciated

1 decade ago
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Closed 1 decade ago by tciulo.