Topics

1

24.1 Legacy Series / Nobody has updated the Blog page

« on: June 29, 2024, 02:22:28 am »

https://opnsense.org/blog/

Still talks about the latest release as 23.7.

Not a good mark; gives the impression of a fading/dying project.

2

23.7 Legacy Series / ipv6 woes continue - now dhcpd6 is the problem child

« on: September 10, 2023, 06:59:55 am »

Did a wipe and reinstall on my small x86_64 PC (a Protectli Vault FW6C), updating it to OPNsense 23.7.3-amd64, and the good news is that this problem seems to be gone:

https://forum.opnsense.org/index.php?topic=34661.0

The bad news is dhcpd6 has become very unreliable and assignment of ipv6 address to devices is all over the place.

I've scaled back my ipv6 settings to be as simple as possible. WAN is requesting a /56 from my ISP and the "IPv6 Configuration Type" setting on all the interfaces, such as LAN or OPT1, is set to "Track Interface". I can see ipv6 addresses being assigned to the interfaces. Client devices on the network is where the problems creep in.

Observations.

Upon startup or reboot the dhcpd6 service is ALWAYS red/stopped/dead. I don't know if this is a new issue but I don't remember this behavior in 23.1

Touching/changing Router Advertisements settings causes dhcpd6 to crash.

The "Router Advertisements" setting also seem to make no sense. For example, SLAAC should be the easiest option to get working but using Assisted or Stateless has no effect. Both a Windows 10 desktop and a laptop running Debian Linux 12 failed to acquire an ipv6 address. I first cycled the interfaces and then rebooted the router and the computers to ensure everything was reinitialized but the outcome was the same. Assisted or Stateless yields nothing.

I then tried setting Router Advertisements to Disabled. Both Windows 10 and Linux somehow obtained an ipv6 address and websites like ipv6test.google.com agreed that ipv6 was working.

While that seemed to work for a few hours or even a day, dhcpd6 will just randomly die upon which the clients themselves seem to lose ipv6 connectivity, at least according to ipv6test.google.com.

I am going to try some Android devices and see if I can borrow an Xbox just to observe how different operating systems behave but this isn't looking good. ipv6 support seems SUPREMELY sketchy in 23.7.