Tag
five-tuple
- Apr 23, 2023 How a Stateful Firewall Matches a Packet The order in which a packet filter evaluates rules, how the connection-tracking table overrides the rule set, and where the model breaks under fragmentation and asymmetric routing. security
- Jan 31, 2023 Connection Tracking Under NAT How address and port translation rewrites the five-tuple, why the mapping table is the real policy state, and which behaviours the NAT requirement documents leave to the implementation. security