Situatie

gre0: flags=b051<UP,POINTOPOINT,RUNNING,LINK0,LINK1,MULTICAST> mtu 1476
        tunnel inet 172.17.160.65 --> 172.17.160.69
        inet 172.31.254.5 --> 172.31.254.6 netmask 0xffffffff 

	route naar 172.31.254.2
		gaat de tunnel van
			5->6 in

->	node rund
		172.17.160.65
		|
		ethernet
		|
		172.17.160.66
	router/nat
		172.17.160.69
		|
	router/nat ------ DSL en framerelay
		|
		10.123.123.2/30 
		|
		10.123.123.1/30 
	DSL modem HCC
		|
		naar HCC

NAT rules
	rdr on ${wl_if} \
		proto gre \
		from 172.16.0.0/12 to 172.17.160.69  ->  62.251.0.189

Firewall rules

	pass in,out on $wl_if \
		proto gre from $wl_net to $hcc\
		 keep state

	pass in,out on $wl_if \
		proto tcp \
		from $wl_net to $hcc \
		port pptp
		keep state