
TCP/IP protocol suite:
- Firewall and NAT - stateful packet filtering; Peer-to-Peer protocol filtering; source and destination NAT; classification by source MAC. IP addresses (networks or a list of networks) and address types. port range. IP protocols. protocol options (ICMP type. TCP flags and MSS). interfaces. internal packet and connection marks. ToS (DSCP) byte. content. matching sequence/frequency. packet size. time and more!!!
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