Installation guide

5.6.7.8 Packetfilter
To configure the kernel packetfilter device, include the following line in the
configuration file:
"options PACKETFILTER"
5.6.7.9 Network Loopback Device
If your configuration requires the software loopback interface definition,
the following entry must be present in the configuration file:
pseudo-device loop
5.6.7.10 Additional STREAMS Definitions
If your configuration supports STREAMS protocols, the following entry
should be present in the configuration file:
pseudo-device strpush 16
The strpush entry specifies the number of modules that you can push in a
single stream.
Configuring the Kernel 5–59