Re: Internet vulnerabilities

["Marshall Eubanks" <tme () multicasttech com>]

On Fri, 5 Jul 2002 05:22:29 -0700
 "Barry Raveendran Greene" <bgreene () cisco com> wrote:
> FYI - for those scratching their heads on "anycast" .....
>
> I just pushed out a paper on anycast by Chris Metz. Good foundation
> material.
>
> http://www.cisco.com/public/cons/isp/essentials/ip-anycast-cmetz-03.pdf

Thanks - and the AS112 project seems to use static BGP spoofing, where
different locations announce the address via different paths :

"As a way to distribute the load for RFC1918-related queries, we use IPv4
anycast addressing. The address block is 192.175.48.0/24 and its origin AS is
112. This address block is advertised from multiple points around the Internet,
and these distributed servers coordinate their responses and back end
statistical analyses."

Marshall 


> > -----Original Message-----
> > From: owner-nanog () merit edu [mailto:owner-nanog () merit edu]On Behalf Of
> > Bill Woodcock
> > Sent: Friday, July 05, 2002 4:56 AM
> > To: Marshall Eubanks
> > Cc: nanog () merit edu
> > Subject: Re: Internet vulnerabilities
> >
> >
> >
> >     > But the only IPv4 anycast
> >     > that I know of does use MSDP :
> >     >
> > http://www.ietf.org/internet-drafts/draft-ietf-mboned-anycast-rp-08.txt
> >     > Is there a different proposal ? What's the RFC / I-D name ?
> >
> > You seem to be confusing anycast with something complicated.  It's not a
> > protocol, it's a method of assigning and routing addresses.
> >
> >                                 -Bill