Marlon K. Schafer (509) 982-2181 wrote:
There are already standards in place on what and how to do this for
the DSL industry, cable is working on a standard. The conversation
was more technical than I can recall word for word, but it sounds like
it would be a very very good idea for us to either adopt an existing
CALEA standard or develop one for our industry. Anyone care to head
up a committee on the topic???
Me heading up a committe right now isn't really in the cards, but I do
want to add my $0.02....
Technically this isn't really a problem. All that is needed is for you
to be able to run a packet sniffer in the right spot on your network.
On my core router (which happens to be Open Source based), I would just
need to do something like :
tcpdump -i vlan23 -C 1000000 -w caleaoutput host 1.2.3.4
This would produce a set of raw dump files containing the requested
packets which could then be transfered to law enforcement.
If you have a managed switch, having a linux box plugged into a mirrored
switchport facing the client would permit you to do this.
The hard part is how to provide this to law enforcement. I think
perhaps just putting these files on a SFTP or password-protected
https:// site might be sufficient.
-forrest
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