iwpmd.conf man page

iwpmd.conf

The iwpmd.conf file provides configuration parameters for iwpmd.  Parameters are in the form: param=value, and one per line.  Parameters include:

nl_sock_rbuf_size - The socket buffer size of the netlink socket used to communicate with the kernel port map client.  The default is 400MB.

nl_sock_rbuf_size=419430400

/etc/iwpmd.conf

iwpmd(8)