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Thank you for clarifying. Unclear why he says this. Disappointing as he has a big YT channel.

At 10 minutes in this video the host insinuates that opnsense does not seem to provide commits (or at least very few) to freebsd? Is this true?

Background of this video is yesterday pfsense have changed their license for home users who were previously offered a more pro version for free and this is being revoked.

https://www.youtube.com/live/rXI6-E1nc5M?si=mSkMmn09d4WyQ6go

Interesting. I will look into it. Thanks.

Hi there,

Since upgrading I have started to get items in my logs I have never seen before as per below:

<see image>

This block rule does prevent devices from accessing a list of IP's in an alias that I have, and 255.255.255.255 is blocked on that port in a firewall rule, so the entry seems valid.

What confuses me is the 0.0.0.0 device is what exactly? And why is it trying to access port 68 UDP (DNS?) to 255.255.255.255?

The other devices are all Unifi AP wifi equipment. (192.168.2.161-164).
Also why do they access 255.255.255.255 on port 10001?

Thank you if anyone has any insight to this.

Pete

I dont know what other screenshots are relevant. I can post any required. I did test from a client machine with do not fragment and fixed ping size, 1472 doesnt work but 1464 size does so the mtu is only 1492. I dont know what other info to give. If I did I would give it to you. I have tried what other people have tried but never can progress the issue so I am stuck. From what I can tell I do the same thing as others but it does not work for me. I use a protectli box so I would imagine its a common setup.

So what's your PPPoE parent device? Do you have any assigned? Do you have MTU set anywhere but the WAN interface itself?

If you want PPPoE to have 1500 the WAN interface must set 1508 and it will set all accordingly up and down the chain of devices. I'm not sure it's more complicated than that now and I fail to explain it any more simple.


Cheers,
Franco

I posted the screenshots and subsequently deleted the parent dummy device as per the advice of the other poster. Nothing has helped at all. I have done exactly as you said.

Interfaces - point to point - devices edit the PPPoE tunnel under advanced no Mtu set?

Correct. Nothing set here.

Just updated to 23.7.5.

Deleted all dummy interfaces "Physical NIC" "VLAN", checked WAN PPPoE is set to 1508 calculated MTU is 1500.
Upgrade to 23.7.5 and voila! 1500 MTU on PPPoE

Just tried this exact thing. Deleted PPPOEDMY so its now gone, checked that pppoeWAN had 1508 set as MTU. Calculated MTU said 1500.

Saved, rebooted. MTU under interfaces - overview still 1492. So not clear what else to do. Nothing works for me the same as other people.

"You just need to set the correct MTU in the WAN interface that the PPPoE is assigned to (heeding that the effective MTU on PPPoE is the "calculated" value displayed not the one entered)."

I am not clear what to do here. I have 2 interfaces for some reason. A "dummy" interface and a normal pppoe interface.
Am I clearing the config from one of them? If so which one and where am I inputting 1512? The dummy or pppoe interface?

Or am I deleting this dummy interface and setting 1508 on the pppoe interface?

Kind regards
Peter

Let's make sure a manual setting somewhere is not preventing it from adjusting correctly:

# opnsense-log | grep ifconfig

It should show errors regarding setting MTU. Then we could look at the config and find those offending values.

I'd also check the PPP device settings as under advanced they also have room to set MTU again...


Cheers,
Franco

Hi Franco,

Thank you for the reply. The output is nothing when I do this (first screenshot)

My advanced options has nothing set (second screenshot).

Kind regards
Peter

Literally dont know what else to change at this point. Ss simply show my last effort to get it working but pretty sure I have tried every permutation and setting values in all different places with no effect.

Last ss

Third ss

Second ss

Unsure how to progress this. Tried different values and settings but pppoe is always 1492 no matter what I do.

Here are my settings. Why does it not work?