Recent content by Jargon

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  1. Jargon

    Solved Potential bug with UDP NAT loopback/hairpinning

    Ugh yes, thank you! That was what I had meant to link to. Browser history bamboozled me!
  2. Jargon

    Solved Potential bug with UDP NAT loopback/hairpinning

    I was going to enquire about the possibility of doing this to @RMerlin but I wasn't sure it if it would cause other problems. https://github.com/RMerl/asuswrt-merlin/blob/263449f32bf292fb6bc5a08cd645e61a7fb10485/release/src/router/rc/firewall.c#L4498 (edit: wrong repo, my bad)...
  3. Jargon

    Solved Potential bug with UDP NAT loopback/hairpinning

    Thanks for the direction and all the help with this. The script is in place and happily doing its thing now. Yea, I read about the reliability issue from the commit logs and previous discussions around it. Interesting (and annoying) about the Trend Micro stuff though. And thank you for your...
  4. Jargon

    Solved Potential bug with UDP NAT loopback/hairpinning

    Yes, you are right. The rule needs to be at PREROUTING in the flow. When I set ctf_pt_udp (I honestly don't know what this property relates to or where to set it in the web interface) to 1 and rebooted I could see the rule in FORWARD but it didn't fix the issue, in PREROUTING it does fix the nc...
  5. Jargon

    Solved Potential bug with UDP NAT loopback/hairpinning

    I came to exactly the same conclusion using the link to the source code in my previous message but I have no idea where to put it. I tried running it from the command line after enabling SSH and I couldn't seem to modify the iptables (iptables -S kept returning the same rules). I have no idea...
  6. Jargon

    Solved Potential bug with UDP NAT loopback/hairpinning

    It does? I didn't see anything like that when I looked... unless you mean this? I'm a high level developer and this is way beyond my networking knowledge, so I'm having difficulty wrapping my head around a lot of this heh. If I knew more about this area I might feel comfortable experimenting...
  7. Jargon

    Solved Potential bug with UDP NAT loopback/hairpinning

    I was actually thinking the contrary. There's a lot of stuff in the old Merlin NAT loopback code that resembles the following: #ifdef CONFIG_BCMWL5 /* mark connect to bypass CTF */ if(nvram_match("ctf_disable", "0")) { /* mark 80 port connection */ if...
  8. Jargon

    Solved Potential bug with UDP NAT loopback/hairpinning

    So now I understand the problem I've been digging deeper and also discovering at one time there used to be a Merlin NAT loopback option in the router which was removed due to increasing complexity to keep it working. I've actually found someone in the Valheim community running the older version...
  9. Jargon

    Solved Potential bug with UDP NAT loopback/hairpinning

    You are a legend. Not only does the nc UDP test work but I can now also connect to my local network Valheim server using my WAN IP again (and therefor use the in-game server list for it). I can't believe you narrowed that down so fast. I still don't understand what exactly NAT acceleration has...
  10. Jargon

    Solved Potential bug with UDP NAT loopback/hairpinning

    How do I disable the NAT acceleration? Is it in the web admin? I couldn't see it when I checked earlier but may have missed it. Is it something I need terminal access for? Also what are the implications of disabling NAT acceleration? Will I lose performance?
  11. Jargon

    Solved Potential bug with UDP NAT loopback/hairpinning

    Hi all, hopefully this is the right place to post this. I'm running a Valheim server on my Ubuntu box on my network and after the latest game update (where they stopped using SDR/Steam relays) I've suddenly lost the ability to connect to my server using my WAN IP (those outside my network are...
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