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Orange Funbox 6 Fiber Optic Router: Port Forwarding Range Error 8100-8300, Seeking Solution

Zutket 12090 11
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  • #1 20071621
    Zutket
    Level 36  
    Posts: 2876
    Help: 270
    Rate: 1045
    Hello.
    I have a problem with this Orange Funbox 6 fiber optic router on the ORANGE fiber, so I need to redirect ports from the external address to a permanent internal address. While single port forwarding works, I cannot forward a range of ports, e.g. 8100-8300. The router stubbornly claims that there is a range error and does not accept it.
    I asked for help at the ORANGE Helpline and, to put it mildly, they told me that it was my problem and I had to deal with it myself. Literally.
    Maybe someone can help me :?:
    Regards.
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  • #2 20071639
    Anonymous
    Level 1  
  • #3 20073059
    Zutket
    Level 36  
    Posts: 2876
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    Erbit wrote:
    Maybe you have already forwarded one of the ports in this range?
    Allow me my friend to pass on such a hint...
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  • #4 20073238
    Anonymous
    Level 1  
  • #5 20073302
    Anonymous
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  • #6 20073575
    Zutket
    Level 36  
    Posts: 2876
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    Robo-technical wrote:
    Try a smaller range. Even 10.
    I tried in different ways to enter the range, each time the answer of the router is the same. Invalid range.
    Interestingly, single ports are accepted and traffic redirection works, e.g. 5060.
    Robo-technical wrote:
    I understand their approach a bit. do you have internet? does the link work? This means that from the supplier's side everything is ok.
    You're right, but it's their equipment, so I would expect a little more from them than whether the equipment is connected to the network and lights up green ... After several attempts to call their Hotline, I managed to break through to the next level, where at least they knew what I was talking about. They did not help but promised to call back, did not call back.
    Well, I handled it in a different way. The router gives you the ability to redirect all traffic to a fixed internal address. What is at stake, I don't need to explain.
  • #7 20073587
    Anonymous
    Level 1  
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  • #8 20073633
    Zutket
    Level 36  
    Posts: 2876
    Help: 270
    Rate: 1045
    Robo-technical wrote:
    Or rather incorrect software. Try to update. If that doesn't help, consider installing WRT standalone software.
    Honestly, I hadn't thought of that. I did the tests on the new Funbox-6 equipment, because I have one at home, while the symptoms are the same on earlier versions, e.g. Funbox-3. I'll check the firmware version as well. Maybe that's the right direction. :D
  • #9 20073640
    Anonymous
    Level 1  
  • #10 20074445
    Bródka
    Level 42  
    Posts: 7239
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    It's great that you can't upload alternative software to FB6, and changing the router to ONT is possible, but it requires changes in your own router later because the PPPoE connection is not everything, you also need to configure the port on vlan35 to connect to the Internet
    And what about other media from orange, such as TV, do you also have the Internet?
    Helpful post? Buy me a coffee.
  • #11 20082537
    Zutket
    Level 36  
    Posts: 2876
    Help: 270
    Rate: 1045
    Bródka wrote:
    It's great only that you won't upload alternative firmware to FB6 ...
    I also thought that even if I could, I would not risk my equipment on them, especially since the equipment is owned by the service provider, in this case ORANGE.
  • #12 20354139
    kubitus13
    Level 1  
    Posts: 1
    Rate: 3
    In the "Internal Port" field, enter only the first port from the defined range, e.g. 1000. In the "External Port" field, enter the full range, e.g. 1000-2000. Then save the button. The table should now contain the correct ones, i.e. the "Internal Port" and "External Port" fields should already contain the ranges of redirected ports.
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Topic summary

✨ The discussion revolves around issues with port forwarding on the Orange Funbox 6 fiber optic router, specifically the inability to forward a range of ports (8100-8300) due to a range error. Users suggest troubleshooting steps such as checking for previously forwarded ports, trying smaller ranges, and updating the router's firmware. One user mentions successfully redirecting single ports and all traffic to a fixed internal address as a workaround. There are also discussions about the limitations of the router's firmware and the potential for using alternative software like OpenWRT. A specific solution is proposed where only the first port of the range is entered in the "Internal Port" field, while the full range is entered in the "External Port" field.
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FAQ

TL;DR: Fix Funbox 6 "range error" by setting Internal Port to the first port and External to the full range (e.g., 1000–2000); "Enter only the first internal port; set the full range externally." [Elektroda, kubitus13, post #20354139]

Why it matters: For Orange Funbox 6 users who ask how to forward port ranges for games, VoIP, or servers without errors, this gives the exact steps.

Quick Facts

How do I fix the “Range error” when forwarding ports on Orange Funbox 6?

Use this 3‑step method: 1. In Internal Port, enter only the first port of your range (e.g., 1000). 2. In External Port, enter the full range (e.g., 1000–2000). 3. Save the rule; the table will show ranges in both columns. [Elektroda, kubitus13, post #20354139]

What exactly should go into Internal Port vs External Port?

Internal Port must be a single start value of the range. External Port should contain the entire range in start‑end format. After you save, both Internal and External will display the full range in the table. This is the supported input pattern. [Elektroda, kubitus13, post #20354139]

Why does a range like 8100–8300 fail while single ports work?

Directly typing 8100–8300 triggers a “range error” in the Funbox 6 UI, although single ports do work. The 8100–8300 span equals 201 ports, which the router rejects when entered incorrectly. Use the UI method described in this FAQ to apply ranges. [Elektroda, Zutket, post #20071621]

Do smaller ranges (like 10 ports) get accepted on Funbox 6?

No. Users tested multiple smaller ranges, and the router still returned “Invalid range.” Single ports are accepted and function, for example port 5060. Use the correct Internal/External entry method to apply any range. [Elektroda, Zutket, post #20073575]

How can I confirm the range was applied after saving?

Open the Funbox 6 port forwarding table after saving. You should see the range reflected in both the Internal Port and External Port columns. This confirms the rule parsed and applied your range. [Elektroda, kubitus13, post #20354139]

Could the error happen because one port in the range is already forwarded?

Yes. If any port in the target range is already mapped, the router can reject the new range entry. Check your existing rules for overlaps. Remove or edit duplicates before adding the range again. [Elektroda, Anonymous, post #20071639]

Is using the DMZ/all‑traffic redirect a safe workaround?

The router lets you forward all traffic to one fixed LAN IP. It works as a workaround but increases exposure of that host. Use it only if you understand the risk and have strong host‑level security. [Elektroda, Zutket, post #20073575]

Will a firmware update help if the range still errors out?

It might. One contributor attributed it to “incorrect software.” Try updating the router firmware. If issues persist, consider using WRT‑class software on supported hardware, not on the Funbox 6 itself. [Elektroda, Anonymous, post #20073587]

Can I install OpenWRT or other third‑party firmware on Funbox 6?

No. Users report you cannot upload alternative firmware to FB6. It’s provider‑managed and locked down, so third‑party firmware isn’t an option on this device. [Elektroda, Bródka, post #20074445]

Can I replace Funbox 6 with my own router or an ONT on Orange Fiber?

Yes, but expect extra configuration. Internet requires PPPoE and VLAN 35 on your router. Other Orange services (e.g., TV) may need additional setup. Plan for this before swapping hardware. [Elektroda, Bródka, post #20074445]

Will Orange support help me with port‑forwarding on FB6?

In this case, support declined to assist and told the user to handle it themselves. Treat port‑forwarding as a user‑managed configuration on provider gear. [Elektroda, Zutket, post #20071621]

Does single‑port forwarding, like SIP 5060, work on Funbox 6?

Yes. Single‑port rules are accepted and function. The user confirmed port 5060 works, even when ranges were rejected due to input format. [Elektroda, Zutket, post #20073575]

Why does the operator firmware feel limited on advanced options?

Operator builds prioritize simplicity and remote management, not power‑user features. As one expert noted, “This is to give net, not be too difficult… and facilitate remote telemetry.” Consider non‑operator hardware for deeper control. [Elektroda, Anonymous, post #20073640]
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