How to add a controller Era 2000 v2 on a different subnet?

Hello,
in the main office dfl 260e
in the back office mikrotik hap ac
raised GRE tunnel.
Is PACS ERA 2000 v2, which according to information from clause 4 https://www.entpro.ru/vopros-otvet this page works through UDP packets.
The problem is that data Exchange "Server Controller" occurs at the data link layer. Data are encapsulated in UDP packets. All controllers have a pseudo IP address: 192.A.B.C where A,B,C - the last 3 octets of the MAC address of the controller.
For example, the controller IP address with the MAC address 00:0B:3C:1F:00:DF will be equal to 192.31.0.22

I do not understand how to get to see the controller on a different subnet.
March 23rd 20 at 18:52
1 answer
March 23rd 20 at 18:54
This hack give l2 between the controller and the server. In principle it is feasible, but I doubt that will be able to make friends dlink and mikrotik. In the case of monovendor from the dfl, like, have the ability to throw the vlan using l2TPv3, the mikrotik EoIP is possible to raise and transparently to drive the l2 traffic.

The easiest would probably be to install from the head office the cheapest mikrotik for dfl and raise EoIP tunnel from auxiliary office to him through the existing GRE.

From the manufacturer's website this DIY
**Connect controllers to the existing heavily loaded and deeply segmented Ethernet can negatively impact system reliability. In such cases it is recommended to connect the controllers to a separate Ethernet LAN.

It's a masterpiece, they're nukuhou moved.
Thanks for the help!
Just for dfl is mikrotik hap ac lite, but now I'll never know how to shoot EoIP the tunnel through the DFL... - shawn72 commented on March 23rd 20 at 18:57
@shawn72what is the difficulty? - issac_Cronin commented on March 23rd 20 at 19:00
@issac_Cronin, at least he should have a direct address or raise another tunnel , and then at him eoip.
You can see it just a bit understand

@shawn72 it may be recalled that the TEC can work with l2 traffic (NAT and other things) but have to really understand what you need to get in the end. Honestly not ready to offer anything, as it is necessary to deal directly with PACS and his work. - Asha commented on March 23rd 20 at 19:03

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