set interfaces bridge br0 member interface eth1
set interfaces bridge br0 member interface vxlan0

set interfaces ethernet eth0 address '192.0.2.2/30'
set interfaces ethernet eth0 description 'WAN'
set interfaces ethernet eth1 description 'Lan'

set interfaces tunnel tun0 address '10.0.0.2/24'
set interfaces tunnel tun0 description 'Gretap'
set interfaces tunnel tun0 enable-multicast
set interfaces tunnel tun0 encapsulation 'gretap'
set interfaces tunnel tun0 mtu '1500'
set interfaces tunnel tun0 parameters ip ignore-df
set interfaces tunnel tun0 parameters ip key '1'
set interfaces tunnel tun0 parameters ip no-pmtu-discovery
set interfaces tunnel tun0 parameters ip ttl '0'
set interfaces tunnel tun0 remote '203.0.113.2'
set interfaces tunnel tun0 source-address '192.0.2.2'

set interfaces vxlan vxlan0 group '239.0.0.241'
set interfaces vxlan vxlan0 mtu '1426'
set interfaces vxlan vxlan0 port '4789'
set interfaces vxlan vxlan0 source-interface 'tun0'
set interfaces vxlan vxlan0 vni '123'

vyos@vyos1# commit

WARNING: RFC7348 recommends VXLAN tunnels preserve a 1500 byte MTU


Error in updating VXLAN interface after changing bridge!

[[interfaces bridge br0]] failed

WARNING: RFC7348 recommends VXLAN tunnels preserve a 1500 byte MTU

Commit failed
[edit]
vyos@vyos1# run show ver
Version:          VyOS 1.4-rolling-202402160309
Release train:    sagitta

vyos@vyos1# compare 
[interfaces]
+ bridge br0 {
+     member {
+         interface eth1 {
+         }
+         interface vxlan0 {
+         }
+     }
+ }

[edit]
vyos@vyos1#