IP Filtering / CIDR Block Size / SprintLink

Mon Jan 27 21:21:12 UTC 1997

On Mon, 27 Jan 1997, McLeodUSA wrote:

> Who, in addition to SprintLink, is currently implementing IP 
> filtering based on CIDR block size (/19)?  And where can I go 
> to learn more about this issue?
> 
> I've read the "Q&A conducted by Christy Hudgins-Bonafield with 
> Alecia Cooper, group manager SprintLink product management." at
> http://techweb.cmp.com/nc/online/sprint.html  but couldn't seem
> to find much on what other carriers are doing.
> 
> Thanks.
> 
> Tim Nemec
> McLeodUSA
>  __________________________________________________________________
>  
AGIS published their route filter criteria:

http://agisgate.agis.net/tsld002.htm

Essentially, they will filter on /19 in the 206+.

They will filter on /24 for the 192-205 range.

Everything else (0-191) will be filtered in the /16.

Lee