libpcap0.8-dev - 1.8.1-6+deb10u1 main

Headers, static libraries, and documentation for the libpcap library.
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libpcap (Packet CAPture) provides a portable framework for low-level
network monitoring. Applications include network statistics
collection, security monitoring, network debugging, etc.
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Since almost every system vendor provides a different interface for
packet capture, and since there are several tools that require this
functionality, the libpcap authors created this system-independent API
to ease in porting and to alleviate the need for several
system-dependent packet capture modules in each application.