/PROXIES=n

    Optional. Default: Number of communication proxies plus 10, with
    a minimum of 20.

    Specifies the maximum size of the proxy cache. If you plan to add
    entries to the proxy database after you start the TCP/IP Services
    software, set /PROXIES to a value higher than the default.

    You cannot change this value if the TCP/IP Services software is
    running.