ARIN's policies concerning dial-up pools

Richard Jimmerson richardj at
Fri Jan 19 12:51:07 EST 2001

Hello Alex,

When allocating IP address space to your downstream customers
for their dial pools it is important to pay attention to the
the users to modems ratio to ensure they are not assigning
static IP addresses to their dial-up customers.  Although it
is important to make sure they are making dynamic assignments,
it is also important to take their number of simultaneous
users during peak usage hours into consideration.

Richard Jimmerson
Director of Operations
American Registry for Internet Numbers (ARIN)

> -----Original Message-----
> From: owner-ppml at [mailto:owner-ppml at]On 
> Behalf Of Alex
> Kamantauskas
> Sent: Friday, January 19, 2001 11:09 AM
> To: ppml at
> Subject: ARIN's policies concerning dial-up pools
>  I am wondering if ARIN has an allocation policy concerning 
> dial-up modem
>  pools.  I have a few customers requesting network blocks, 
> and in their
>  justifications they have "dial pools" listed.  Is there a 
> certain ratio
>  of users to modems that I should keep an eye out for?  In 
> some cases, I
>  have suspicions that the customer could only justify X 
> addresses, so they
>  added Y modems in a "dial up pool" to beef up their 
> requested numbers.
> -- 
> Alex Kamantauskas
> alexk at

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