topic Re: Switching to OpenWRT - port forwarding/DMZ question in Broadband

Switching to OpenWRT - port forwarding/DMZ question

WhiskerP — Sat, 25 Apr 2026 08:50:38 GMT

I have my router working behind the Sky router with IPv4 double-NAT etc.

IPv6 isn't the problem here but I'd like to switch to my own OpenWRT router with MAP-T support. I do get an IPv4 over MAP interface come up which works. It has a different public IP address (same 176.25. subnet) presumably due to the router MAC being different but I'm not sure if it retains all the port forwarding I previously set up. Is there any way to set up port forwarding on the SKY public interface over MAP-T with your own router as the facility disappears from the Sky spp? The router is set up but no packets arrive. Thanks, Peter

Re: Switching to OpenWRT - port forwarding/DMZ question

Danz994 — Sun, 26 Apr 2026 09:37:42 GMT

Hi @WhiskerP I’ve escalated your post to our Community Messaging team who will invite you to a private chat shortly and help you with this.

Just look out for the colourful bubble to start the conversation. Please be aware conversations automatically close if there is no response within 48 hours.

Here's more information on how Community Messaging works - https://helpforum.sky.com/t5/Did-you-know/Escalating-a-post-to-a-Sky-expert/ba-p/3711147#M141

Re: Switching to OpenWRT - port forwarding/DMZ question

WhiskerP — Wed, 29 Apr 2026 04:41:40 GMT

They appear to have switched me to dual stack so issue is no more.

Thanks

Peter