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pfconfig(8) System Manager's Manual pfconfig(8) NAME pfconfig - Configure packet filter parameters SYNOPSIS /usr/sbin/pfconfig [ +/-p [ romisc ] ] [ +/-c [ opyall ] ] [ -b [ ack- log ] nnn ] [ -a [ ll ] ] [ interface-name ... ] DESCRIPTION The pfconfig command allows the system manager to configure certain pa- rameters of the packet filter driver (see packetfilter(7)). These pa- rameters are configured separately for each interface; the interfaces are specified by name on the command line (for example, ln0, and ni1). If more than one interface is specified, they are all given the same settings. Alternatively, you can specify -all to configure all the packet-filter interfaces on the system. You can set the following parameters with pfconfig: Allows packet fil- ter users to set the interface into promiscuous mode (receives all packets). Whenever there is at least one packet filter descriptor open with the ENPROMISC mode bit set, the interface is put into promiscuous mode. When no such descriptors are in use, the interface is returned to normal mode. The interface is no longer put into promiscuous mode on behalf of packet filter users; if the interface is in promiscuous mode when this command is given, it is returned to normal mode. (The superuser may use ifconfig(8) to control promiscuous mode, overriding the mode set by non-superusers. This is the default setting.) Allows packet filter users to set the interface into copy-all mode (receives packets sent/received by the kernel-resident protocol software [for ex- ample, IP, ARP, DECnet, LAT] on this host). Whenever there is at least one packet filter descriptor open with the ENCOPYALL mode bit set, the interface is put into copy-all mode. When no such descriptors are in use, the interface is returned to normal mode. The interface is no longer put into copy-all mode on behalf of packet filter users; if the interface is in copy-all mode when this command is given, it is re- turned to normal mode. (The superuser may use ifconfig(8) to control copy-all mode, overriding the mode set by non-superusers. This is the default setting.) Sets the maximum backlog (packet filter input queue length) for non-superuser descriptors to the specified number. When a descriptor is opened, it is given a queue length limit of two. An ap- plication can increase this backlog using the EIOCSETW ioctl request. Superusers are allowed to increase their backlog up to a system-wide maximum; non-superusers are allowed to increase their backlog only up to the maximum set by this program. Note that allowing too large a backlog may result in vast amounts of kernel memory being tied up in the packet filter driver queues. If no configuration parameters are specified, the pfconfig com- mand displays the current packet filter configuration for the network interfaces. Only the superuser may use this command to change the configura- tion. ERRORS Messages indicating the specified interface does not exist; an attempt to set a maximum backlog less than 1 or greater than the system-wide maximum; the user tried to alter an interface's configuration but is not privileged. RELATED INFORMATION Commands: intro(1), netstat(1), pfstat(1), ifconfig(8), inet.local(8). Files: bpf(7), packetfilter(7). delim off pfconfig(8)