LLDP AND DCP Through VPN L2 BRIDGE- OPENWRT

I’m doing a project with a PLC S7-1200 SIEMENS, Which I can connect to it by TCP, i can ping it, without problem using a module that runs OPENWRT, I can see the MAC of the device, TIA PORTAL uses protocols like LLDP AND DCP to find PLC that don’t have IP, I understand that these protocols use work on L2, I added the following rules:
drop
not ethertype ipv4
and not ethertype arp
and not ethertype ipv6
and not ethertype 0x8892
and not ethertype 0x88CC
and not ethertype 34964
and not chr multicast
;
Is there a way to bridge or send those packages of LLDP and DCP over Zerotier VPN?