diff options
Diffstat (limited to 'share/ipf/nat.3')
| -rw-r--r-- | share/ipf/nat.3 | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/share/ipf/nat.3 b/share/ipf/nat.3 new file mode 100644 index 00000000000..df041d1119c --- /dev/null +++ b/share/ipf/nat.3 @@ -0,0 +1,45 @@ +#!/sbin/ipnat -f - +# +# THIS EXAMPLE IS WRITTEN FOR IP FILTER 3.3 +# +# ppp0 - (external) PPP connection to ISP, address a.b.c.d/32 +# +# ed0 - (internal) network interface, address w.x.y.z/32 +# +# If we have only 1 valid IP address from our ISP, then we do this: +# +map ppp0 w.x.y.z/24 -> a.b.c.d/32 portmap tcp/udp 40000:60000 +map ppp0 w.x.y.z/24 -> a.b.c.d/32 +# +# if we get a different dialup IP address each time, then we would use: +# +#map ppp0 w.x.y.z/24 -> 0/32 portmap tcp/udp 40000:60000 +#map ppp0 w.x.y.z/24 -> 0/32 +# +# If we have a class C address space of valid IP#'s from our ISP, then we can +# do this: +# +#map ppp0 w.x.y.z/24 -> a.b.c.d/24 portmap tcp/udp 40000:60000 +#map ppp0 w.x.y.z/24 -> a.b.c.d/24 +# +# or, if we only have a small number of PC's, this: +# +#map ppp0 w.x.y.v/32 -> a.b.c.E/32 portmap tcp/udp 40000:60000 +#map ppp0 w.x.y.v/32 -> a.b.c.E/32 +#map ppp0 w.x.y.u/32 -> a.b.c.F/32 portmap tcp/udp 40000:60000 +#map ppp0 w.x.y.u/32 -> a.b.c.F/32 +#map ppp0 w.x.y.t/32 -> a.b.c.G/32 portmap tcp/udp 40000:60000 +#map ppp0 w.x.y.t/32 -> a.b.c.G/32 +#map ppp0 w.x.y.s/32 -> a.b.c.H/32 portmap tcp/udp 40000:60000 +#map ppp0 w.x.y.s/32 -> a.b.c.H/32 +#map ppp0 w.x.y.r/32 -> a.b.c.I/32 portmap tcp/udp 40000:60000 +#map ppp0 w.x.y.r/32 -> a.b.c.I/32 +#map ppp0 w.x.y.q/32 -> a.b.c.J/32 portmap tcp/udp 40000:60000 +#map ppp0 w.x.y.q/32 -> a.b.c.J/32 +#map ppp0 w.x.y.p/32 -> a.b.c.K/32 portmap tcp/udp 40000:60000 +#map ppp0 w.x.y.p/32 -> a.b.c.K/32 +# +# To make ftp work, using the internal ftp proxy, use: +# +map ppp0 w.x.y.z/24 -> a.b.c.d/32 proxy port ftp ftp/tcp +# |