nanog mailing list archives
Re: ISPs as content-police or method-police
From: Ben Browning <benb () oz net>
Date: Mon, 20 Nov 2000 09:17:01 -0800
At 11:54 11/20/2000 -0500, Valdis.Kletnieks () vt edu wrote:
I suspect that if a large percentage of Tier 1/2 carriers actually filtered ports 137 through 139, we'd not be seeing anywhere near the amount of QAZ and similar activity. And as has been pointed out, you can ALWAYS punch a hole in the filter for customers who like to live risky, or they can find other ways to tunnel their packets.
Well, we'd actually see a good deal of QAZ still, if Tier One was filtering it... QAZ primarily hunts in the same class C it lives in.
Aside from that, I certainly agree that it is not our job to dictate what our customers can or cannot do on the big-eye-nternet. What I also think is that it *is* our responsibility to maintain the sanctity of our networks. I don't see any customers up-in-arms because of the lack of directed broadcast services on most of our networks, and I think this situation is roughly analogous.
The point is this: 137-139 are used for NetBIOS and Samba, neither of which are secure (or even supported by their vendors, AFAIK) for use out on the Internet. I think we can all agree that anyone using them in that situation, shouldn't be.
--- Ben Browning <benb () oz net> oz.net Network Operations Tel (206) 443-8000 Fax (206) 443-0500 http://www.oz.net/
Current thread:
- Re: Operational impact of filtering SMB/NETBIOS traffic?, (continued)
- Re: Operational impact of filtering SMB/NETBIOS traffic? Valdis . Kletnieks (Nov 19)
- RE: Operational impact of filtering SMB/NETBIOS traffic? Roeland Meyer (Nov 19)
- Re: Operational impact of filtering SMB/NETBIOS traffic? Jim Mercer (Nov 19)
- RE: Operational impact of filtering SMB/NETBIOS traffic? Roeland Meyer (Nov 19)
- Re: Operational impact of filtering SMB/NETBIOS traffic? Shawn McMahon (Nov 19)
- Re: Operational impact of filtering SMB/NETBIOS traffic? Adam Rothschild (Nov 20)
- ISPs as content-police or method-police Ehud Gavron (Nov 20)
- Re: ISPs as content-police or method-police Valdis . Kletnieks (Nov 20)
- RE: ISPs as content-police or method-police Christian Kuhtz (Nov 20)
- Re: ISPs as content-police or method-police Shawn McMahon (Nov 20)
- Re: ISPs as content-police or method-police Ben Browning (Nov 20)
- RE: ISPs as content-police or method-police Christian Kuhtz (Nov 20)
- Re: ISPs as content-police or method-police John Kristoff (Nov 20)
- Re: ISPs as content-police or method-police joshua stein (Nov 20)
- RE: ISPs as content-police or method-police Mark Radabaugh (Nov 20)
- Re: Operational impact of filtering SMB/NETBIOS traffic? Jim Mercer (Nov 19)
- RE: Operational impact of filtering SMB/NETBIOS traffic? Greg A. Woods (Nov 19)
- Re: Operational impact of filtering SMB/NETBIOS traffic? Etaoin Shrdlu (Nov 19)
- Re: Operational impact of filtering SMB/NETBIOS traffic? Shawn McMahon (Nov 19)
