ACL: - standardna (postaviš na konec poti, kjer blokiraš): * od kje * IP - razširjena (postaviš čim bližje izvoru poti): * od kje, kam * storitev: DNS, POP, WEB STANDARDNA Router: * access-list <1-99> deny host * access-list <1-99> permit Interface: * int fa0/0 * access-group <1-99> RAŠIRJENA Router: * access-list 100 deny * access-list 100 permit ip Int: * int fa0/0 * ip access-group 100