service (dos) hacker attacks automatically.
dos attacks include:
1 ping of death
2 syn flood
3 land attack
4 ip spoofing
5 teardrop — a dos hacker tool which is widely available on the internet.
figure 2 internet firewall dmz security functions
the internet firewall uses stateful packet inspection to determine if a data packet from the internet is allowed through to the private lan. this is similar to algorithms implemented in more costly firewalls commonly used in large enterprises.
advanced users can extend the security functions of the internet firewall by adding network access rules and user privileges. see “examples of network access rules” o page 107 and “user privileges” on page 108 for more information.