Re: v6 security: covert channel through DstOptions

[itojun@iijlab.net]

>FYI, FWIW, I came across this:
>
>http://net.suug.ch/articles/2003/07/06/ip6msg.html
>
>.. where someone has hacked a system to pass data between the endpoints 
>embedded in unrecognized IPv6 destination options.  Nothing new there, but 
>now it has gone operational.
>
>However the attacks could be much more nastier too.

	another URL (i don't have one with me now) noted that it is a
	covered channel.  i'm not sure if we can really *attack* other system
	with this.

itojun