MCI aggregates all its customer's routes into /19's. We have just received our first block of address space from the 207.x.x.x range. If you continue to filter at /18's for the 207.x.x.x range, you won't be able to reach all of MCI's customers. Needless to say MCI would appreciate it if you'd change your policy to be /19's, and I'm sure Sprint's customers would appreciate it as well. Regards, Daniel --------------------------------------------------------------- | Daniel M. Barton Internet: dmbarton@mci.net | | MCI Internet Services World Wide Web: | | Cary, North Carolina, USA http://infopage.mci.net | --------------------------------------------------------------- On Wed, 13 Dec 1995, Sean Doran wrote:
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"Avi" == Avi Freedman <freedman@netaxs.com> writes:
Avi> What's the smallest CIDR block Sprint will listen Avi> to from an external source in the Avi> 207.x.x.x-208.x.x.x range? Is it different than Avi> the filters on > /19s in 206.x.x.x-207.x.x.x Avi> range?
- From non-customer BGP peerings we listen to /19s in 206/8.
We listen to /18s in 207/8 to the top of the IPv4 unicast space.
The nanog email archive should have lots more detail for you.
Sean.