North American Network Operators Group|
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Re: zotob - blocking tcp/445
On Tue, 16 Aug 2005, Joe Maimon wrote: > > > Christopher L. Morrow wrote: > > > > On Mon, 15 Aug 2005, email@example.com wrote: > > > > > >> > >>NetBIOS was never meant to be a WAN protocol, so no problem > >>in blocking it. > > > > > > rule #1: do not be the Internet's Firewall > > rule #2: see rule #1 > > > Surely we realize that this discussion is not concerning the oft > repeated "Internet's Firewall" debate. > > > This is network self preservation. Otherwise the garbage will eventually > suffocate us all. and again I point to the above rules. What your network can't handle 'scanning wise' is completely different from what the network I work on can handle. If your network is being jeopardized by some level of scanning they fix that, but that is a local decision. Blindly stating "large isps filter port X" is just disingenuous, there are certainly cases as exceptions, most of which end with the ISP in question saying: "Wow that was a lot more painful than we thought originally:("