Course 32 - Checkpoint CCSA R80 | Episode 6: Mastering NAT Types, Priority Hierarchies, and Manual Rules

In this lesson, you’ll learn about: advanced NAT design, rule priority, and manual translation in Check Point R801. NAT Fundamentals in Check Point R80In Check Point R80, NAT controls how private and public networks communicate🔹 Hide NAT (Source NAT)Many internal devices → one public IPTypically uses:Gateway’s external IP🔹 Use CasesInternet browsingOutbound traffic🔹 Static NAT (Destination NAT)One public IP ↔ one internal server🔹 Use CasesHosting:Web serversMail servers2. NAT + Security Policy (Critical Concept)👉 NAT does NOT allow traffic by itself🔹 Required SetupConfigure NATCreate Access Control Rule → Accept traffic🔹 Smart BehaviorYou can reference:Internal server object✔️ Firewall automatically understands NAT mapping3. Auto-NAT Priority HierarchyWhen multiple NAT rules overlap, priority decides🔹 Priority Order (Top → Bottom)Host Static NAT (highest priority)Host Hide NATRange Static NATRange Hide NATNetwork Static NATNetwork Hide NAT (lowest priority)🔹 Why This MattersEnsures:Specific servers keep dedicated IPsPrevents:Conflicts with general rules🔹 ExampleServer inside network with Hide NATServer also has Static NAT👉 Static NAT wins (higher priority)4. Manual NAT (Advanced Control)Used when Auto NAT is not enough🔹 CapabilitiesDefine:SourceDestinationService (port/protocol)🔹 Conditional NATApply NAT only when:Traffic matches specific conditions5. Port Address Translation (PAT)🔹 ConceptMultiple services → one public IP🔹 ExamplePort 80 → Web serverPort 25 → Mail server👉 Same public IP, different internal targets6. Manual NAT Rule PlacementOrder matters in NAT rulebase🔹 Best PracticePlace:Specific rules → topGeneral rules → bottom👉 Ensures correct matching and behaviorKey TakeawaysHide NAT = outbound internet accessStatic NAT = inbound access to serversNAT alone doesn’t allow traffic → needs policy ruleAuto NAT follows strict priority hierarchyManual NAT gives full controlPAT allows multiple services on one public IPBig PictureWith NAT in Check Point R80, you control:How internal users reach the internetHow external users reach internal servicesHow overlapping rules are resolvedHow advanced traffic translation is handledYou can listen and download our episodes for free on more than 10 different platforms:https://linktr.ee/cybercode_academy