nanog mailing list archives
Re: zotob - blocking tcp/445
From: Roger Marquis <marquis () roble com>
Date: Thu, 18 Aug 2005 09:40:16 -0700 (PDT)
Andy Johnson wrote:
I think the point of many on this list is, they are a transit provider, not a security provider. They should not need to filter your traffic, that should be up to the end user/edge network to decide for themselves.
How is this different from a transit provider allowing their network to be used for spam? Seems the same hands-off argument was made wrt spam a decade ago but has since proved unsustainable. Our particular problem is with an ISP in Wisconsin, NETNET-WAN. We get tens of thousands of scans to netbios ports every day from their /19. This is several orders of magnitude more netbios than we see from the rest of the net combined. It's eating nontrivial bandwidth and cpu that we pay real money for. They've had our logs for months but seem incapable of doing anything about their infected customers. The suits recommend documenting time and bandwidth costs and sending a bill with a cease and desist request. My question is not what can we do about bots, we already filter these worst case networks, but what can we do to make it worthwhile for bot-providers like NETNET to police their own networks without involving lawyers? -- Roger Marquis Roble Systems Consulting http://www.roble.com/
Current thread:
- Re: zotob - blocking tcp/445, (continued)
- Re: zotob - blocking tcp/445 Daniel Senie (Aug 17)
- Re: zotob - blocking tcp/445 Petri Helenius (Aug 17)
- Re: zotob - blocking tcp/445 Christopher L. Morrow (Aug 17)
- Re: zotob - blocking tcp/445 Sane Jiri (Aug 16)
- Re: zotob - blocking tcp/445 MARLON BORBA (Aug 16)
- RE: zotob - blocking tcp/445 Church, Chuck (Aug 16)
- Re: zotob - blocking tcp/445 Valdis . Kletnieks (Aug 16)
- Re: zotob - blocking tcp/445 Christopher L. Morrow (Aug 16)
- Re: zotob - blocking tcp/445 Sean Donelan (Aug 16)
- Re: zotob - blocking tcp/445 Valdis . Kletnieks (Aug 16)
- Re: zotob - blocking tcp/445 Bill Nash (Aug 18)
- Re: zotob - blocking tcp/445 Andy Johnson (Aug 18)
- Re: zotob - blocking tcp/445 Peter Dambier (Aug 18)
- Re: zotob - blocking tcp/445 My Name (Aug 18)