Trying to use ipmasqadm

["David Demland" <demland@cox.net>]

I am trying to use port forwarding on my Sparc 5. It has a 2.2 kernel. When
I try to use the command:

ipmasqadm portfw -a -P tcp -R 10.0.0.253 1723 -L 192.168.1.5 1723

I get the message:

portfw: setsockopt failed: Invalid argument

When I do:

ipmasqadm portfw -l

I get the messages:

Could not open "/proc/net/ip_masq/portfw"
Could not open "/proc/net/ip_portfw"
Check if you have enabled portforwarding

What have I not configured right to get the port forwarding to work?

Thank You,

David Demland