Интерактивная система просмотра системных руководств (man-ов)
if_sl (4)
>> if_sl (4) ( FreeBSD man: Специальные файлы /dev/* )
BSD mandoc
NAME
sl
- slip network interface
SYNOPSIS
device sl [count
]
DESCRIPTION
The
interface allows serial lines to be used as network interfaces using the
slip
protocol.
The
interface can use Van Jacobson TCP header compression and ICMP filtering.
This is arranged by using the various link-level flags to the
ifconfig(8)
command:
link0
Enable VJ header compression.
link1
Suppress ICMP traffic.
link2
Enable VJ header compression autodetection.
This will turn on the
link0
flag as soon as the first VJ-compressed packet has been seen by
the driver.
DIAGNOSTICS
sl%d: af%d not supported.
The interface was handed
a message with addresses formatted in an unsuitable address
family; the packet was dropped.
