[nv-l] NAT problems

Hello. 

I have a problem with a NV installation for a ISP customer.

There is a firewall protecting the ISP from all of the customers, and each
customer has their own firewalls. 

The problem is that the firewalls are using NAT. There no 
problem
with the trap forwarding. But it is a problem with the status polling.
  
NetView is suppose to talk to a MLM at the customer site with the
public address 123.123.123.123 (bound to this host in the firewall NAT
tables). When NetView does a discovery for this node, it finds out
that the
real address is 192.168.1.10. Nobody is answering at this address (of
course), the node is marked down, even though the address (and
host name) of 123.123.123.123 can be SNMP browsed, and pinged. Can also do
the NetView test procedure for the object, both ping and demand poll
works. 

Tech info:
Server: Win 2000 server, NetView 7.1
Node/MLM: Win 2000 pro, MLM for NT or win 2000 v. 7.1.0


Question:

Is there any feature in NV 7.1 that can be set, so NV knows that this
host (123.123.123.123) is a NATed host ?

Can I manipulate the route table on the server so every time it asks for
192.168.1.10 it is translated to 123.123.123.123 ?

Can I manipulate the firewall at the ISP site so it reNAT's the address
from 192.168.1.10 to 123.123.123.123 ? (probably not a good solution, but 
a desperate one ;) )

I have heard about something called Tivoli CNAT, what is this, and can
it solve my problem ?!  


Please ask me if any thing is unclear.



ASCII drawing (if it helps?!)

-----------------------------------------------
 10.100.1.10  nat>          <nat  192.168.1.10

 |----|       |---|         |---|       |----|
 | NV |-------|fw1|---------|fw2|-------|MLM1|
 |----|       |---|         |---|       |----|
      |                                 |
      |<-------------------------------<|
      |  trap forwarding - OK
      |
      |>-X
      |  status poll to 192.168.1.10 - unknown address 

----------------------------------------------



------------------
 Frode Jemtland
 ITS - IBM Norway
------------------