Dynamic IPs in SC

[johnhct]

We've been using SC for a while now with static IP's. That part of the hekpdesk.txt looks like:
[HOST]
Support 66
-connect 69.16.235.66:5500 -noregistry

[HOST]
Support 67
-connect 69.16.235.67:5500 -noregistry

[HOST]
Support 68
-connect 69.16.235.68:5500 -noregistry

Now, we need to use it with some dynamic IPs. I thought we'd set up the port forwarding to each support rep with each having a differrent port. Then, I thought we'd set up the helpdesk.txt to look like:
[HOST]
Support1
-connect 70.16.235.66:5501 -noregistry

[HOST]
Support2
-connect 70.16.235.66:5502 -noregistry

[HOST]
Support3
-connect 70.16.235.66:5503 -noregistry

After further reading, I think it should look like:

[HOST]
Support
-connect 70.16.235.66:5500 -noregistry

And then port forward to the reps. Then, the rep with 5502 would launch SC like vncviewer.exe -listen 5502.

Is the first method or the second correct?

Thanks.