Help configurazione router Fastweb ADB DV2200

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Come da titolo, mi servirebbe una mano ad applicare le seguenti impostazioni:

If your router is not listed above, here are some generic instructions. Look for a section on your router to add static routes, there should be room for a network address, subnet mask and gateway. You need to setup the static routes like this:

Network Address: 8.8.8.8
Subnet Mask: 255.255.255.255
Gateway: (use the IP address of your router - this is the IP that's in the browser URL)

Network Address: 8.8.4.4
Subnet Mask: 255.255.255.255
Gateway: (use the IP address of your router)

Network Address: 208.67.222.222
Subnet Mask: 255.255.255.255
Gateway: (use the IP address of your router)

Network Address: 209.244.0.3
Subnet Mask: 255.255.255.255
Gateway: (use the IP address of your router)

Notes:

The "gateway" should be the internal IP address of your router, it will usually start with "192.168." or "10." - make sure you use the internal address, not the public or external address.
If there is room for a "metric", use the number 2.
If there is room for an "interface", select either "LAN" or "BRIDGE.

So that's 4 entries in total. What this does is force your router to route requests to public DNS servers to itself, which will never get routed, so they will never work, and your device will fall back to using the DNS servers you have configured."

Credo di aver individuato la schermata, ma non sono sicuro al 100% che sia quella giusta:
Home>>Configurazione>>Regole di Routing e QoS>>Regole di IP Forwarding>Aggiungi una rotta
Se ho ben capito vanno inserite 4 regole singole, ma dopo averle create e applicate visualizzo la scritta "errore" nel campo "stato" della tabella riepilogativa delle regole.
O ho sbagliato sezione o ho inserito dei dati non corretti.
Sapete aiutarmi, per favore?

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