Messages

1

19.1 Legacy Series / Re: PPPoE MTU issues - no ICMP message too big being sent

« on: May 10, 2019, 11:47:57 pm »

I tried to get this fixed by lodging a bug - https://github.com/opnsense/core/issues/3328, but clearly the person who picked it up had no clue and I don't have time to waste going in circles.
While it all looks nice with a new frontend compared to pFSense .. at least pFSense just worked as expected.

2

19.1 Legacy Series / PPPoE MTU issues - no ICMP message too big being sent

« on: March 11, 2019, 04:42:31 am »

Hi all,

I have 19.1.3 installed on a VM with a PPPoE connection to my ISP.
If I leave the MTU setting default (blank) is calculates the PPPoE interface MTU to 1492 - that is correct.
If I ping from the LAN side through this interface with DF (Don't Fragment) set a frame at 1492 passes ok, as expected, but if you go past this size, I would expect an ICMP message generated by the firewall indicating that the packet is too big for the interface (should be 1492) .. but I am never seeing this message.

Bug?

Dave