NetFilter SDK for MacOS
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NetFilter SDK for Mac OS is a framework for transparent filtering the data packets transmitted via network. It suits for developing the content filters, basic application level firewalls, traffic analyzers/shapers, other software that requires viewing and modifying TCP traffic, and control access for UDP.

Key features
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- The solution allows filtering outgoing TCP connections and allow/block UDP datagrams in user mode application. It is possible to filter the specified subset of connections/datagrams, restricted by filtering rules. The outgoing TCP connections can be redirected to different address.
- The filtering operates on transport level, on the top of TCP/IP stack. In effect it automatically supports all kinds of TCP/IP capable network adapters: Ethernet, Dial-up/DSL/Cable modems, wireless adapters including Wi-Fi and Bluetooth, virtual adapters like loopback or VPN.
- Both IPv6 and IPv4 are supported.
- The process and user context is available for all network activity.
- The filtering works on Intel and ARM64 operating systems. 


.. toctree::
	installation
	building_extension
	using_api
	bug
	signing
	reference