We help IT Professionals succeed at work.
Get Started

iPhone/iPad using multiple DCHP ip address lease

rjjacques asked
Last Modified: 2012-08-20

When looking at my DHCP server lease log (e.g. the router's log - Asus RT-N12 v1.0.1.4), I find that many (if not all) iPhone and iPad on the network take multiple IP address leases and all on different MAC address.

The main issue with this is that the DHCP server lease range is completely used up. Yes, I can change the subnet address from class C to either B or A, but still, does anyone know why these devices use so many IP addresses (I've seen one with 15 IP addresses assigned to an iPad-2, with 6 more that were expired).

I have set the lease period to 7200 seconds (2 hours), but the expired IP address don't seem to really get released by the device.

Watch Question
This problem has been solved!
Unlock 1 Answer and 7 Comments.
See Answer
Why Experts Exchange?

Experts Exchange always has the answer, or at the least points me in the correct direction! It is like having another employee that is extremely experienced.

Jim Murphy
Programmer at Smart IT Solutions

When asked, what has been your best career decision?

Deciding to stick with EE.

Mohamed Asif
Technical Department Head

Being involved with EE helped me to grow personally and professionally.

Carl Webster
CTP, Sr Infrastructure Consultant
Ask ANY Question

Connect with Certified Experts to gain insight and support on specific technology challenges including:

  • Troubleshooting
  • Research
  • Professional Opinions
Did You Know?

We've partnered with two important charities to provide clean water and computer science education to those who need it most. READ MORE