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Hi all,

I use OPNsense for quite some time now (actually since it forked), and it has always been stable. Especially the updates were always perfect: nothing broke and everything kept working as intended. Unfortunately, since 18.7 there are problems.

DNS didn't seem to work right after the upgrade, but we also can't use ping in the LAN anymore and some Linux servers can't update anymore.

I used dnsmasq before, but disabled that since dns didn't work at all with it. I now switched to unbound, which does seem to work. But the thing is: we still can't use ping (I hoped both problems would be fixed). I can't ping private nor public IP addresses, and to make it worse: it's also impossible to ping the router itself from a connected device.

I searched quite a bit on the internet, but couldn't find problems that looked exactly like this one. I see there are quite some problems with 18.7, but I haven't found the same problem (but I could have missed it).

I am no networking or DNS specialist, so I would love to have some help with this problem. Any pointers or ideas where I can start looking for the ping problem?

By the way: although DNS seems to work, I am still not feeling that DNS is completely stable, but I need more time tomorrow to check whether this is true.

edit: fixed! I don't know what the problem was, but after a reboot of everything it works like I want :-). Thanks! Topic can be closed.

Bonjour,

I followed this guide: https://docs.opnsense.org/manual/how-tos/guestnet.html (minus the captive portal and voucher stuff) and everything wired works like a charm, but not one access point will work on the network (I tried several). I hope someone here will know what I did wrong.

GUEST network:

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IPv4 10.255.255.1/24 on its own NIC/physical interface (em2).

The four firewall rules from the guide:

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Allow DNS on GUEST
Block Local Networks
Block Firewall Access
Allow Guest Network.

DHCP server:

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10.255.255.0 (subnet)
255.255.255.0 (mask)
10.255.255.1 - 10.255.255.254 (range)
10.255.255.1 (DNS server)
10.255.255.1 (gateway)

When I put a UTP cable from em2 directly in a device, it will get a functioning network/internet connection with an IP address from the given range. But access points won't work for some reason. I tried running access points on DHCP mode and static mode with an IP address in the given range. There are no switches involved, the cable runs directly from the router's GUEST interface to the access point.

Does anyone have any idea what I did wrong or how I can troubleshoot this? If more information is needed, I'll provide it :-).

Many thanks in advance! By the way, I am still learning networking so it might be something supersimple, sorry in that case.