Access control. Use Regular Expressions syntax. All connections in tacppd controlled via access lists. It used for control TCP and UDP connections, also it control per-user manager access.
access 1
permit ^127.0.0
permit ^192.168.0
exit
access 2
permit ^127.0.0
deny ^192.168.2.3$
permit ^192.168.2
exit
access 3
permit ^127.0.0
permit ^192.168.0
permit ^172.17.35
exit
access list - control access to listeners and for users "access 1 permit ^127.0.0" 1 - number of access list (1-32000) ^127.0.0 - regular expression you can use usual regular expressions, like: ^127.0.0.1$ and so on