North American Network Operators Group
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Re: Vonage complains about VoIP-blocking
- From: Jon Lewis
- Date: Wed Feb 16 10:50:22 2005
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_________
|
