Static packet filtering
Static packet filtering is a firewall and routing capability that provides network packet filtering based only on packet information in the current packet and administrator rules.
Static packet filtering filters packets based on:
- Administrator defined rules governing allowed ports and IP addresses at the network and transport layers of the OSI network model.
- Packet contents including the network and transport layer contents
Static packet filtering only filters packets based on administrator defined rules governing allowed ports and IP addresses at the network and transport layers of the OSI network model as mentioned in item 1 above.
Dynamic packet filtering provides a better level of security than static packet filtering since it takes a closer look at the contents of the packet and also considers previous connection states.