Troubles with qinq
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HI,
Today we are using a network configured with a pfsense (Community edition 2.4.4-RELEASE-p3) on a hp server.
Our level 2 VPN is provided by our operator with QINQ. (We transit in this one , different VLANs). Everything works perfectly.
We are migrating our pfsense gateway, because we need new network interfaces to work.
We purchased a Netgate 1537 (23.01-RELEASE) with an additional NIC extension.
The configuration of the two machines are identical, but qinq not working one the new one.
On the first machine we had to put an mtu of 1504 bytes on the network card that receives the qinq links for it to work. Vlans configured with qinq are automatically set to 1500 bytes.
On the second machine, the configured vlans are automatically set to 1496 bytes. Is this why the qinq does not work ?
Firewall rules are functional
Did I forget a parameter for qinq?
I'm sorry for my English.
If you need additional information, please do not hesitate.
Thank you very much for your help.