Hmmm. I see you have a link with Brett, WA7V.

He also has static addresses, and was able to assign a commercial IP address to his linux box, as well as his NOS side.

You might want to consult him on how that is done.

In the mean time, does your JNOS have a LAN address of 192.168.x.x ??

It is behind a DSL Modem/Router.  It is a 2wire.  However, I have 5 static IPs.  It does not allow me to use one of the public IPs for Jnos.  It does not add that IP to the local network list for configuration, and therfore does not permit traffic to Jnos.  I therfore had to use the munge script to build tunnels in Linux.  This is ok, because it does protect Jnos from attacks.

 
Chris,
 
It appears that you have the same or quite similar setup that I have. I have my Linux box with a public static IP address and use that in the POINTOPOINT line. Eventually, the Linux box will appear in the 2wire and when it does, should automatically allow all traffic to that static address.
 
(Of course, at present JNOS is locking up after a few hours, but that is unrelated)
 
If you don't hear from Brett, I am willing to share what I have worked out. I still have more to do, but it may get you started. As always, make sure you make a backup of your current setup should it not work as mine does.
 

73 de Ray W6RAY
w6ray@w6ray.#nca.ca.usa.noam