Firewall application layer Winsock2

There are several ways to implement a firewall:

  • Winsock LSP – Can be used for an application layer firewall, but it’s mostly not used for various reasons.
  • TDI Driver – Mostly used for personal firewalls, according to Microsoft it will be phased out in the next OS.
  • Ndis IM – Mostly used for gateway firewalls.
  • WFP – The new plaform Microsoft is promoting, in my opinion that until XP is retired this will not gain momentum.

Barak

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