From: Mike N. 

On Sun, 29 Jan 2006 09:55:45 -0500, "Geo"  wrote:

>new block of bogon space and that usually is sufficient. Most places that
>blacklist bogon space today are doing it with a dns blacklist that only
>affects their mail servers.

   I believe the bogon blocking started as an easy way to dampen DDOS
attacks - there would be SYN floods coming from bogon space.   Are you
saying that spammers have already used bogon space to send spam?


>Only a few "secure" networks are still running
>route filters for bogons, most of the others have decided it was better to
>filter bgp /24 advertisements instead of worrying about bogons.
>
>Mike, it was easy to filter this stuff when the average home user had 56k,
>but today with 5mb connections, customers requesting ima T1 groups and
>100baseT not being sufficient to host local ethernet bandwidth requirements
>for server farms and such, it's become a lot harder to justify wasting
>router capacity. (that ima stuff is a real cpu hog btw)

   So router capacity hasn't kept up with the rest of the PC industry?  I
was always amazed that relatively recently, you  had to pay big $$ extra to
get 128 MB of RAM in your router, long after PCs were routinely loaded with
gigabytes of RAM.   It's not like routing algorithms require more CPU with
a larger table either.   The /24 stuff is possibly just a convergence
problem.   Some people advertised a /24 out of laziness but increasingly
there are legitimate needs to advertise a /24.

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