Peter wrote:
On Thu, 18 Aug 2005, Shaul Karl wrote:
method. Which reminds me: how come using cables has to do with
authentication to the ISP mail server?
All the people in a cable segment are in the same 'pool' and they
could masquerade as each other afaik. Not running a firewall on cable
is 100% suicidal imho.
Your upstream channel to the CMTS is a private channel (on a different
physical frequency). Only the downstream is shared media. The CMTS knows
who you are and what IPs were assigned to you. Often they will have
security features in place to prevent you from sending out packets from
IPs not assigned to you.
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