Packet filtering vs. firewall, Packet filtering, When to use filtering – ZyXEL Communications 802.11g Wireless ADSL2+ 4-port VoIP IAD P-2602HWNLI User Manual

Packet filtering vs. firewall, Packet filtering, When to use filtering | Firewall, When to use the firewall | ZyXEL Communications 802.11g Wireless ADSL2+ 4-port VoIP IAD P-2602HWNLI User Manual | Page 430 / 442