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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||||
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | ||||
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | ||||
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | ||||
.\" SUCH DAMAGE. | .\" SUCH DAMAGE. | ||||
.\" | .\" | ||||
.\" $FreeBSD$ | .\" $FreeBSD$ | ||||
.\" | .\" | ||||
.Dd March 25, 2017 | .Dd July 11, 2020 | ||||
.Dt PPP 8 | .Dt PPP 8 | ||||
.Os | .Os | ||||
.Sh NAME | .Sh NAME | ||||
.Nm ppp | .Nm ppp | ||||
.Nd Point to Point Protocol (a.k.a. user-ppp) | .Nd Point to Point Protocol (a.k.a. user-ppp) | ||||
.Sh SYNOPSIS | .Sh SYNOPSIS | ||||
.Nm | .Nm | ||||
.Op Fl Va mode | .Op Fl Va mode | ||||
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host, but not on other machines in the LAN, then the masquerading | host, but not on other machines in the LAN, then the masquerading | ||||
software is working properly, but the host is either not forwarding | software is working properly, but the host is either not forwarding | ||||
or possibly receiving IP packets. | or possibly receiving IP packets. | ||||
Check that IP forwarding is enabled in | Check that IP forwarding is enabled in | ||||
.Pa /etc/rc.conf | .Pa /etc/rc.conf | ||||
and that other machines have designated the | and that other machines have designated the | ||||
.Nm | .Nm | ||||
host as the gateway for the LAN. | host as the gateway for the LAN. | ||||
When starting | |||||
.Nm | |||||
with the provided rc script, the default is to | |||||
enable NAT; see | |||||
.Va ppp_nat | |||||
in | |||||
.Xr rc.conf 5 | |||||
and | |||||
.Pa /etc/defaults/rc.conf . | |||||
.Sh PACKET FILTERING | .Sh PACKET FILTERING | ||||
This implementation supports packet filtering. | This implementation supports packet filtering. | ||||
There are four kinds of | There are four kinds of | ||||
filters: the | filters: the | ||||
.Em in | .Em in | ||||
filter, the | filter, the | ||||
.Em out | .Em out | ||||
filter, the | filter, the | ||||
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