one-to-many messaging

[Chris Edwards]

On Thu, 3 Apr 2008, Peter Fairbrother wrote:

| port numbers are not covered by 2(5) as they are not there for the 
| purposes of the packet-passing service, so looking at port numbers is 
| always interception.

One might argue that where "port 25 blocked" is a part of the service, 
then the ISP *does* need to look at port numbers for the purpose of 
passing on (or not) the packets.  Thus the port is traffic data.

At work, our firewall looks at IP addresses and ports to decide whether or 
not to forward a packet.  In this case it seems quite easy to argue the 
port is traffic data.