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
- Port range entry format: Internal Port = first port only; External Port = full range (e.g., 1000–2000); then Save. [Elektroda, kubitus13, post #20354139]
- Symptom: ranges return “Invalid range,” while single ports (e.g., 5060) are accepted and work. [Elektroda, Zutket, post #20073575]
- DMZ workaround: you can forward all traffic to a fixed LAN IP, but this increases exposure risk. [Elektroda, Zutket, post #20073575]
- No third‑party firmware on Funbox 6; OpenWRT upload is not supported on FB6. [Elektroda, Bródka, #20074445]
- Using your own router/ONT on Orange Fiber needs PPPoE plus VLAN 35 for Internet. [Elektroda, Bródka, #20074445]
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, #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, #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]
