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DHCP Server Lease Time

Discussion in 'Networking' started by Nutter_9591, Apr 10, 2004.

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  1. Nutter_9591

    Nutter_9591 Thread Starter

    Joined:
    Apr 10, 2004
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    im using a d-link di-604 router to share a broadband connection(cable)between two pc's. under the dhcp tab, dhcp server is enabled, there is starting and ending ip address and lease time which is set to one week. what does this lease time thing mean? sorry newbie question.
     
  2. dai

    dai

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    Mar 6, 2003
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    i think it just renews itself automatically
     
  3. jjb

    jjb

    Joined:
    Dec 8, 2001
    Messages:
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    Basically the way most (if not all) cable providers operate is on the "lease" system which when your internet signal reaches your cable provider it is routed and turned over to a third party isp which then assigns ip addresses. I believe this is the difference between what is referred to as a "static" internet connection where your ip address is always the same. Depending on the terms the cable provider has with the third party provider depends on the length of lease time you are seeing and will vary. I thought mine normally showed a 12-24 hour period between when obtained and when lease expires but I just looked and currently shows a 4 hour difference. As dai stated they automatically refresh themselves at which time I believe in most cases a new ip address is also assigned. I am not positive on this but I believe a new lease is also obtained whenever you reboot/connect to the internet.
    I have heard of some people experiancing disconnects when the lease refreshes where they have to reboot to regain their internet connection......................in fact I have had this happen myself :(
    Hope that helps.
    jjb
     
  4. JohnWill

    JohnWill Retired Moderator

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    106,418
    The DHCP lease time should be transparent to you in a properly working system. Basically, the lease is for the current IP address from the ISP, and it automatically gets renewed by a request from the client (your router) when the lease is halfway expired. Don't give it another thought. :)
     
  5. Nutter_9591

    Nutter_9591 Thread Starter

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    thanks for every one's help.
     
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