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Regression #13622

open

QinQ ethertype tags changed

Added by Steve Wheeler 3 months ago. Updated about 1 month ago.

Status:
New
Priority:
Normal
Assignee:
-
Category:
Interfaces
Target version:
Start date:
Due date:
% Done:

0%

Estimated time:
Plus Target Version:
23.05
Release Notes:
Default
Affected Version:
2.7.0
Affected Architecture:
All

Description

In 2.7/23.01 QinQ uses if_vlan instead of netgraph and set the outer tag ethertype as 802.1ad (0x88a8). That is the expected tags tag type for most QinQ links but is not what netgraph set in 2.6/22.05 and earlier. That used 802.1q (0x8100) for both tags. That could lead to existing QinQ links failing at upgrade.

This change needs to be documented. The new behaviour is probably correct for most new interfaces.

There should be an option to revert to the previous behaviour if required. ifconfig can set the vlanproto value directly in 23.01.

Existing QinQ interfaces could be automatically set to that at upgrade to maintain compatibility with connected devices.

See: https://redmine.pfsense.org/issues/13340

Actions #1

Updated by Jim Pingle about 1 month ago

  • Plus Target Version changed from 23.01 to 23.05

Moving ahead to 23.05, we can document the change for now.

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