THanks for the feedback Furrynutz, please find below some of the info you asked:
1. Hardware version: A1
2. Firmware: 1.04
3. Region: Brazil
4. ISP -> GVT, they have optic fiber service that somewhere near my office it gets transformed into a "telephone" looking wire, so I believe itīs DSL.
5. The modem is a PACE v5471-002 with special firmware by GVT
6. We have dynamic IP address.
As for the dyndns, I already setup the account, but my question is where to set it up, the DLINK router or the GVT router? The dlinkddns address doesnt respond.
Thanks for the help.
Joao.