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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical RE: zotob - blocking tcp/445
>'enterprise security folks' are probably not the issue... The fact remains >that lots of folks DO do this :( There are quite a few folks between >'consumer' and 'enterprise' that do all manner of dumb things on the >Internet (where 'dumb' is equivalent to running smb shares across the >public network minus encryption/ipsec). It's their choice to do that, and >their network providers are expected/demanded to pass those packets for >them. >-Chris Surely the ratio of 'useful' traffic compared to 'junk' for a particular protocol must be considered. What percentage of netbios entering a service provider's edge is intentional? 1%? 0.1%? I'm guessing much less than that. If 5 or 6 nines worth of a particular protocol entering or leaving an ISP's network is unintentional, and highly susceptible to viral activity, isn't it in our best interest to block it? With proper notification to subscribers and instructions on setting up host-to-host PPTP/whatever, blocking netbios can solve a large bunch of issues.... Just my .02 though, Chuck
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