Need some help with double NAT config

[DBC55438]

- I have CenturyLink Gig Fiber connected with a Calix C844G

- Wireless radios are off, and inside the Calix NAT, IP is at 192.168.0.1

- Ethernet connects to my Netgear CBRE960 at 192.168.0.2

- Inside the Netgear NAT is at 192.168.1.1

- Everything is currently working just fine

I'm trying to configure my TABLO tv tuner to provide TABLO Connect so I can see my TV when I'm off my internal network. Setup instructions indicate port fowarding public 21145 to internal 8887, and 21144 to 80.  So far, I haven't been able to get this working.

Question, is how do I configure the Netgear Port Forward and the Calix Port Foward jointly so Tablo can get through the Double NAT?

Thanks in advance

[CrimpOn · Accepted solution]

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@DBC55438 wrote:

Question, is how do I configure the Netgear Port Forward and the Calix Port Foward jointly so Tablo can get through the Double NAT?

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The solution depends on the capabilities of the Calix device.

• If the Calix supports Port Forwarding, then simply:
  • On the Calix, forward those two ports to the Orbi IP (192.168.0.2) with the same port numbers (21145 and 21144)
  • On the Orbi, forward those two ports to the TVs IP as instructed (21145 to 8887 and 21144 to 80) . (Port forwarding must have a destination IP.)
  • I have done this through three routers.
• To avoid having to go through this process over and over again with other applications, the most common advice would be to turn one of the routers into "not a router", i.e.
  • Put the Calix into "bridge" or "modem only" mode.  This allows the Orbi to be the only router, so ports have to be forwarded only once.
  • Put the Orbi into Access Point (AP) mode.  This turns off all of the router functions, including DHCP serving, Armor, Parental Controls, port forwarding, VPN, etc. Then the Port Forwarding must be done on the Calix.

• If the Calix does not support Port Forwarding but does support DMZ, then you could try putting the Orbi's IP into the Calix DMZ.

I am not confident that putting the Tablo in the Orbi's DMZ will work because of the need to change port numbers.

[michaelkenward]

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@DBC55438 wrote:

- Ethernet connects to my Netgear CBRE960 at 192.168.0.2

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What's that?

Netgear's support system denies all knowledge of any CBRE960.

Do you mean RBKE963? Or some other Orbi?

While many questions about routers are generic and could be answered anywhere, some things need specialist knowledge.

If that is what you own, you might get more help, and find earlier questions and answers specific to your device, in the appropriate section for your hardware. That's probably here:

Orbi WiFi 6 (AX) and WiFi 6E (AXE) - NETGEAR Communities

In the meantime you could visit the support pages:

Support | NETGEAR

Feed in your model number and check the documentation for your hardware. Look at the label on the device for the model number.

Check for various troubleshooting tips.

You may have done this already. I can't tell from your message.

I mention it because Netgear stopped supplying printed manuals and CD versions some years ago and people sometimes miss the downloads.

[FURRYe38]

Try putting the RBRs IP address it gets from the host router into the host routers DMZ. 

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@DBC55438 wrote:

- I have CenturyLink Gig Fiber connected with a Calix C844G

- Wireless radios are off, and inside the Calix NAT, IP is at 192.168.0.1

- Ethernet connects to my Netgear CBRE960 at 192.168.0.2

- Inside the Netgear NAT is at 192.168.1.1

- Everything is currently working just fine

I'm trying to configure my TABLO tv tuner to provide TABLO Connect so I can see my TV when I'm off my internal network. Setup instructions indicate port fowarding public 21145 to internal 8887, and 21144 to 80.  So far, I haven't been able to get this working.

Question, is how do I configure the Netgear Port Forward and the Calix Port Foward jointly so Tablo can get through the Double NAT?

Thanks in advance

---

[DBC55438]

@DBC55438 wrote:

- Ethernet connects to my Netgear CBRE960 at 192.168.0.2

You are correct - RBRE960.

Either a typo or a bifocal moment.

[CrimpOn · Accepted solution]

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@DBC55438 wrote:

Question, is how do I configure the Netgear Port Forward and the Calix Port Foward jointly so Tablo can get through the Double NAT?

---

The solution depends on the capabilities of the Calix device.

• If the Calix supports Port Forwarding, then simply:
  • On the Calix, forward those two ports to the Orbi IP (192.168.0.2) with the same port numbers (21145 and 21144)
  • On the Orbi, forward those two ports to the TVs IP as instructed (21145 to 8887 and 21144 to 80) . (Port forwarding must have a destination IP.)
  • I have done this through three routers.
• To avoid having to go through this process over and over again with other applications, the most common advice would be to turn one of the routers into "not a router", i.e.
  • Put the Calix into "bridge" or "modem only" mode.  This allows the Orbi to be the only router, so ports have to be forwarded only once.
  • Put the Orbi into Access Point (AP) mode.  This turns off all of the router functions, including DHCP serving, Armor, Parental Controls, port forwarding, VPN, etc. Then the Port Forwarding must be done on the Calix.

• If the Calix does not support Port Forwarding but does support DMZ, then you could try putting the Orbi's IP into the Calix DMZ.

I am not confident that putting the Tablo in the Orbi's DMZ will work because of the need to change port numbers.

[DBC55438]

Thank you!  The Calix supports both port forwarding and DMZ.  There is also an option to turn NATing off on the Calix.  I'd hate to put the ORBI into AP Mode - I really like the features.  If CenturyLink would support me swapping the Calix for a modem-only option I would do that, but my price would go up significantly.  😞

[FURRYe38]

Best and easiest will be to use the DMZ for the Orbi router. Then you can keep it in router mode and enjoy the features.