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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: Operational impact of filtering SMB/NETBIOS traffic?
First, I want to apologize for my terms. I did not mean dial-up accounts and customers. I'm talking about leased-line accounts. Stephen J. Wilcox [[email protected]] wrote: > Since we started filtering netbios ports and packets directed to network > or broadcast addresses from and to our modems our inbound abuse reports > has virtually stopped.. and a look at the security logs shows hundreds of > people simultaneously port scanning netbios ports. So far no one had > complained about problems.. I dont think many people in reality use the > internet for smb in its basic form, its normally businesses who might need > it and assuming they're sensible they will be using vpn tunnels anyway. [snip] > Does that help you understand the argument, I think smb is a source of > much hassle and is virtually never used legitimatly and better off blocked > from our abuse mailbox point of view! I do understand the argument better. Thanks to you and all the others that responded. However, I would like to understand if leased line (and co-lo) providers also filter. I certainly can understand filtering dial-up customers, but do y'all (or are y'all considering) doing any filtering on the dedicated connection front? That's a general 'y'all' out to NANOG, by the way. Thanks for all the responses. I do have a better grasp on part of the reasoning. Mike -- Mike Johnson Network Engineer / iSun Networks, Inc. Morrisville, NC All opinions are mine, not those of my employer
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