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9
Configuring Firewall/NAT Settings......... 45
9.1
Firewall Overview ................................................................................................. 45
9.1.1
Stateful Packet Inspection......................................................................... 45
9.1.2
DoS (Denial of Service) Protection........................................................... 45
9.1.3
Firewall and Access Control List (ACL).................................................... 45
9.1.3.1
Priority Order of ACL Rule............................................................ 45
9.1.3.2
Tracking Connection State ........................................................... 46
9.1.4
Default ACL Rules ..................................................................................... 46
9.2
NAT Overview....................................................................................................... 46
9.2.1
Static (One to One) NAT ........................................................................... 46
9.2.2
Dynamic NAT ............................................................................................. 47
9.2.3
NAPT (Network Address and Port Translation) or PAT (Port Address
Translation)................................................................................................. 48
9.2.4
Reverse Static NAT ................................................................................... 49
9.2.5
Reverse NAPT / Virtual Server ................................................................. 49
9.3
Configuring Inbound ACL Rules.......................................................................... 49
9.3.1
Inbound ACL Rule Configuration Parameters ......................................... 49
9.3.2
Access Inbound ACL Rule Configuration Page
– (Firewall è Inbound
ACL)............................................................................................................ 52
9.3.3
Add Inbound ACL Rules............................................................................ 52
9.3.4
Modify Inbound ACL Rules ....................................................................... 53
9.3.5
Delete Inbound ACL Rules ....................................................................... 53
9.3.6
Display Inbound ACL Rules ...................................................................... 53
9.4
Configuring Outbound ACL Rules....................................................................... 53
9.4.1
Outbound ACL Rule Configuration Parameters ...................................... 54
9.4.2
Access Outbound ACL Rule Configuration Page
– (Firewall è
Outbound ACL) .......................................................................................... 56
9.4.3
Add an Outbound ACL Rule ..................................................................... 57
9.4.4
Modify Outbound ACL Rules .................................................................... 57
9.4.5
Delete Outbound ACL Rules .................................................................... 58
9.4.6
Display Outbound ACL Rules ................................................................... 58
9.5
Configuring URL Filters........................................................................................ 58
9.5.1
URL Filter Configuration Parameters ....................................................... 58
9.5.2
Access URL Filter Configuration Page
– (Firewall è URL Filter).......... 58
9.5.3
Add an URL Filter Rule.............................................................................. 59
9.5.4
Modify an URL Filter Rule ......................................................................... 59