North American Network Operators Group|
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Re: Vonage complains about VoIP-blocking
Hi, Dan. ] Why block TFTP at your borders? To keep people from loading new versions of ] IOS on your routers? ;) Funny you should mention that. :) We have seen miscreants do exactly that. They will upgrade or downgrade routers to support a feature set of their choosing. A lot of malware uses TFTP to update itself as well. Please note that I am NOT advocating the blocking of TFTP. Thanks, Rob. -- Rob Thomas http://www.cymru.com Shaving with Occam's razor since 1999.