nanog mailing list archives
Re: Vonage complains about VoIP-blocking
From: Jon Lewis <jlewis () lewis org>
Date: Wed, 16 Feb 2005 10:47:13 -0500 (EST)
On Tue, 15 Feb 2005, Rob Thomas wrote:
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.
Didn't nachi setup a tftpd on infected systems and then use tftp to load itself onto systems it spread to? ---------------------------------------------------------------------- Jon Lewis | I route Senior Network Engineer | therefore you are Atlantic Net | _________ http://www.lewis.org/~jlewis/pgp for PGP public key_________
Current thread:
- Re: Vonage complains about VoIP-blocking, (continued)
- Message not available
- Re: Vonage complains about VoIP-blocking John Fraizer (Feb 15)
- Re: Vonage complains about VoIP-blocking Majdi Abbas (Feb 15)
- Re: Vonage complains about VoIP-blocking Jared Mauch (Feb 15)
- Re: Vonage complains about VoIP-blocking Daniel Golding (Feb 15)
- Re: Vonage complains about VoIP-blocking Eric Gauthier (Feb 15)
- Re: Vonage complains about VoIP-blocking Thor Lancelot Simon (Feb 15)
- Re: Vonage complains about VoIP-blocking Adi Linden (Feb 15)
- Re: Vonage complains about VoIP-blocking Daniel Golding (Feb 15)
- Re: Vonage complains about VoIP-blocking Rob Thomas (Feb 15)
- Re: Vonage complains about VoIP-blocking Daniel Golding (Feb 15)
- Re: Vonage complains about VoIP-blocking Jon Lewis (Feb 16)
- Re: Vonage complains about VoIP-blocking John Kristoff (Feb 15)
- Re: Vonage complains about VoIP-blocking Eric Gauthier (Feb 15)
- RE: Vonage complains about VoIP-blocking Jay Hennigan (Feb 15)
- RE: Vonage complains about VoIP-blocking Nathan Allen Stratton (Feb 15)
- RE: Vonage complains about VoIP-blocking Michael Hallgren (Feb 15)