JJJohnson
join:2001-08-25 | How long are Comcast DHCP leases?
Does it vary from region to region? |
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tshirt
Premium
join:2004-07-11
Snohomish, WA
| They usually use 1 week leases, unless maintainance or repair work is happening about to happen, then they switch to 1-2 hour leases.
They do uses a persistant lease system, as long as you are on once a week you will probaly get the same IP for many months or years. |
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JJJohnson
join:2001-08-25 | Thanks. I was just looking at my SB4200 logs and note that the renewal attempts are every 3 1/2 days, so that would be consistent with a 1 week lease. |
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indigoblu
join:2001-12-10
Chicago, IL
edit:
September 11th, @11:18PM
| reply to JJJohnson
from my router.
option dhcp-lease-time 345600;
exactly every 4 days it renews, always keeps same address although ive been a comcast customer for 8 days now  |
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darn4nr
join:2005-08-22
Fremont, CA | reply to JJJohnson
Yeah mine says 4 days exactly. |
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WickedWinter
join:2003-08-02
Tybee Island, GA
| reply to tshirt
said by tshirt  :They do uses a persistant lease system, as long as you are on once a week you will probaly get the same IP for many months or years. Yup, even when I'm out of town for more than a week, the router is on. (and my ReplayTV downloads it's program guide everyday) Same IP for >10 months. |
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jasqid
Fiber In Your Diet?
join:2002-04-02
East Palestine, OH
| reply to JJJohnson
I've been a ATTBI/Comcast sub for 3.5 years. My IP has only changed 3 times.
Once with a new installed router (MAC change), the second when they switched me from the ATTBI servers to the Comcast servers, and when I upgraded my router to a WRT54GS last summer. |
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0MGuN00b
@comcast.n | reply to JJJohnson
Last I checked it was six months here. |
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Bonedoc
join:2001-06-19
Tujunga, CA | reply to JJJohnson
Almost a year with the same Address (IP) - amazing. Almost like having a static IP... for the price of dynamic. Nice Comcast... no complaints. |
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americanada
VIP
join:2001-12-19
Covina, CA
| reply to JJJohnson
My IP has only changed three times in the last couple of years too.
Current lease time is:
Default Lease Time 60.1330555555556 Hours
Default Renewal Time 30.0663888888889 Hours
Maximum Renewal Time 52.6163888888889 Hours
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* AMD64 3500+ *ASUS A8N-E *1GB DDR400 *ATI X800XL 256MB PCIe *Dual L90D+ 19" LCDs * |
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Kip patterson
Premium
join:2000-10-23
Columbus, OH | reply to JJJohnson
The DHCP information in the modem logs is for the modem's Wan-side IP. The information about your computer's lease is found in the computer, or router as the case may be. |
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Macflash
join:1999-07-20
Middleton, MA
| reply to JJJohnson
The DI-624 does not post its the amount of lease time its connection to the internet has, only the expiration times of the leases it gives to its clients. The only way I can see the length of the internet lease is to connect my computer directly to the cable modem and run ipconfig. You can make a guess from the DI-624 log though from when the router starts trying to renew its lease. Its usually half way into it.
It looks like Comcast may have made some changes around here lately. My IP address went from 24.xxx.xxx.xxx to 68.xxx.xxx.xxx. Ever since then my lease has been only an hour. This has been going on for about three weeks. |
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