IPFW Port-range forwarding

[n9010]

Hello,
i'm trying to forward a range of ports via ipfw, as the man states the syntax should be:

            With the TCP and UDP protocols, optional ports may be specified
             as:

                   {port|port-port|port:mask}[,port[,...]]

So i've set the following rule:

add 018500 fwd 192.168.251.250,5060-5081 tcp from any to me via igb0 dst-port 5060-5081

Then if i use ipfw list command i get the following output:

18500 fwd 192.168.251.250,5060 tcp from any to me via igb0 dst-port 5060-5081

What am I doing wrong?
Any help is apprecieted. Thanks

 

[SirDice]

The dst-port can be specified as port1-port2, not the fwd port:

     fwd | forward ipaddr | tablearg[,port]

Note that it says port not ports.

     dst-port ports
             Matches IP packets whose destination port is one of the port(s)
             specified as argument.

ports is defined as :

     ports: {port | port-port}[,ports]