I think the economics depend on the ratio of ISPs to users. For
big ISPs it would be much cheaper to have a central firewall at
the ISP rather than one at every user's site. (For egress filtering
I would of course additionally run a software firewall on my
computers with internet access.)
...
Anonymous
big ISPs it would be much cheaper to have a central firewall at
the ISP rather than one at every user's site. (For egress filtering
I would of course additionally run a software firewall on my
computers with internet access.)
...
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