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# nft 'add rule netdev mlag bond0EgressFilter ether type vlan set update ether saddr . vlan id timeout 5s @macset-tagged-b0 counter return' # tagged
Error: conflicting protocols specified: vlan vs. ether
add rule netdev mlag bond0EgressFilter ether type vlan set update ether saddr . vlan id timeout 5s @macset-tagged-b0 counter return
^^^^^^^^^^^
Tested on latest net-next kernel and latest nftables upstream. Also affect RHEL-9.
The rule works if we allow the ether type match to be implicit.
e.g.
# nft 'add rule netdev mlag bond0EgressFilter set update ether saddr . vlan id timeout 5s @macset-tagged-b0 counter return'
<no error>
Bisected to upstream commit:
commit 87c3041bfd244aaf39e644d33c0df4fe04079e1c
Author: Florian Westphal <fw>
Date: Mon Jul 25 20:02:28 2022 +0200
evaluate: search stacked header list for matching payload dep
"ether saddr 0:1:2:3:4:6 vlan id 2" works, but reverse fails:
"vlan id 2 ether saddr 0:1:2:3:4:6" will give
Error: conflicting protocols specified: vlan vs. ether
After "proto: track full stack of seen l2 protocols, not just cumulative offset",
we have a list of all l2 headers, so search those to see if we had this
proto base in the past before rejecting this.
Reported-by: Eric Garver <eric>
Signed-off-by: Florian Westphal <fw>
Jiri, please approve for RHEL-9.1.z (branching did not happen yet).
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory (nftables bug fix and enhancement update), and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://access.redhat.com/errata/RHBA-2023:0950
# nft 'add rule netdev mlag bond0EgressFilter ether type vlan set update ether saddr . vlan id timeout 5s @macset-tagged-b0 counter return' # tagged Error: conflicting protocols specified: vlan vs. ether add rule netdev mlag bond0EgressFilter ether type vlan set update ether saddr . vlan id timeout 5s @macset-tagged-b0 counter return ^^^^^^^^^^^ Tested on latest net-next kernel and latest nftables upstream. Also affect RHEL-9. The rule works if we allow the ether type match to be implicit. e.g. # nft 'add rule netdev mlag bond0EgressFilter set update ether saddr . vlan id timeout 5s @macset-tagged-b0 counter return' <no error>