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Bob4
Account deleted

join:2012-07-22
New Jersey
Reviews:
·Optimum Online
reply to RARPSL

Re: Update my location via IP address

said by RARPSL:

one says I am in Mahwah NJ (which is where my local Headend is). My actual location is in Suffern NY

I don't see how any IP address database could be better than that. There's no way for them to know where beyond the head-end the user is actually located. An individual IP address could be distributed anywhere in the head-end's coverage area.


RARPSL

join:1999-12-08
Suffern, NY
said by Bob4:

said by RARPSL:

one says I am in Mahwah NJ (which is where my local Headend is). My actual location is in Suffern NY

I don't see how any IP address database could be better than that. There's no way for them to know where beyond the head-end the user is actually located. An individual IP address could be distributed anywhere in the head-end's coverage area.

I agree. I also stated that I was willing to accept the Mahwah "location" as accurate. The problem is that depending on which database the site uses, it can be told a totally inaccurate location (the Connecticut or Long Island one in my case). As to your suggestion that there can be no more granular location than the head-end's location, I do not agree (at least technically). Just because the head-end services multiple areas (Mahwah NJ and Suffern NY in this case) does not preclude having separate IPN blocks for the two cities. When my modem's MAC address is presented to the DHCP server, it is looked up and is used to select Block1 or Block2. Since the modem must be registered, the registration can include an indication of which IPN block to use. So long as the database lists a unique location for each block, you can get more accurate location information. I acknowledge that this split method can cause problems with node splits as well as IPN address allocations. Once you have more Suffern customers than there are IPNs in the Suffern block you must create an additional Suffern block even if there are still available Mahwah addresses that could have been used.

Note that this analysis is simplistic but I think it can serve to show the principle.

Bob4
Account deleted

join:2012-07-22
New Jersey
Yes, but I don't see any reason an ISP would go through such troubles.

Which source placed you in Mahwah?


RARPSL

join:1999-12-08
Suffern, NY
said by Bob4:

Yes, but I don't see any reason an ISP would go through such troubles.

Which source placed you in Mahwah?

Normally the location lookup is due to an Ad related Page (meet people local to you SPAM).

As to which source (correctly) placed me in Mahwah, there was thread here recently which griped but being locked out of access due to being erroneously located. In one of the replies there were 3 geolocation URLs. I used each and got the 3 different results.

frdrizzt

join:2008-05-03
Ronkonkoma, NY
kudos:3
Reviews:
·Optimum Online
reply to RARPSL
CMTS' are not broken up strictly by geographic region within the area the head end services. Because DHCP has ranges set specific to a server (which is specific to a CMTS), and the IP address can be assigned to another user in a totally different area fed by Mahwah, it isn't really possible to do better than head end location in a CV-provided geolocation lookup. A node split shoudn't cause any more problems than the new leases picked up daily by devices.