firewall
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In networks protected by firewalls, it is axiomatic that all
attackers are on the outside of the firewall ...
... firewalls, it is axiomatic that all
attackers are on the outside of the firewall. Therefore, hosts
inside the firewall ...
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Devices such as firewalls MUST drop all inbound packets that have the
evil bit set. Packets with the evil bit ...
... bypass routers (and hence firewalls) entirely. Accordingly, some
link-layer scheme MUST be used to denote evil. This may involve evil
...
... bit being set properly. If faulty components do not set the
evil bit to 1 when appropriate, firewalls will not be able to do
their jobs properly. Similarly, if the bit is set to 1 when it
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... W.R. Cheswick, S.M. Bellovin, and A.D. Rubin, "Firewalls and Internet Security: Repelling the Wily Hacker", Second Edition, Addison-Wesley, 2003. ...