On Sun, Aug 04, 2002 at 09:15:26PM -0700, Stephen Stuart wrote:
IMO, Commercial ISPs should never filter customer packets unless specifically requested to do so by the customer, or in response to a security/abuse incident.
Let's say the customer operates some big enterprise network, runs their infrastructure in RFC1918 space ("for security," hah), and spews a couple kilobits of DNS query from that RFC1918 space toward the root nameservers. Assume that either pride or ignorance will prevent the customer from ever asking you to filter what you know to be garbage traffic. Does your rule to "never filter customer packets" mean you're going to sit and watch those packets go by?
If yes, why?
One would hope that, unless there is a complaint, you wouldn't be invading their private to look at their traffic in the first place. If a root server operator complained about it, I'd say thats reasonable grounds to filter it and contact the customer, the same as if they had a compromised box spewing out DoS. Filtering piddly stuff like this without consultation is usually unwelcome at best, and a disruption at worst. It is also a serious investment of time and acl resources which could be better spent somewhere else. And lastly, it sets a bad precedent for what ISPs "can" do to proactively filter. After all, if we "can" do this, why can't we also filter illegal MP3 exchanges too. -- Richard A Steenbergen <ras@e-gerbil.net> http://www.e-gerbil.net/ras PGP Key ID: 0x138EA177 (67 29 D7 BC E8 18 3E DA B2 46 B3 D8 14 36 FE B6)