XPost: comp.mobile.android, alt.os.linux, alt.comp.os.windows-10   
   From: beretta@nun-ya-bizness.com   
      
   On 4/11/17 3:22 PM, Mike Easter wrote:   
      
   >   
   > For the same reason that when a cable modem releases its leased IP,   
   > waits a short while, and then renews its lease with the DHCP, it gets   
   > the exact same dyanmic IP back again.  Normally.   
   >   
      
   Not entirely accurate. Generally any device on a network, if it follows   
   the RFCs, will request a renewal of a lease at the 1/2 way point of the   
   lease.   
      
   i.e. if the lease is valid for 10 hours, then the device will attempt to   
   renew the lease after 5 hours.   
      
   If the renewal is denied, the current lease is still valid for the   
   remaining 5 hours at which point the device will generally request the   
   new address at some point before the current lease has actually expired.   
      
   If a device (cable modem included) released an IP address before getting   
   a new one, there would be a break in traffic.   
      
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