Does Mikrotik OS masquerade MAC Addresses?

RouterOS General
1

Hi,

I have a network as followed:

EoIP1<->EoIP2(bridged)eth2<->cablemodem

I tried to get DHCP a lease on EoIP1 from the cablemodem. I got it working aslong as I setup the MAC addresses from EoIP1,EoIP2 to the MAC address of eth2.

Is the reason for this perhaps a masquerading of the DHCP packet´s MAC address?

There is traffic from EoIP1 to cablemodem but the response from the cablemodem does not get into the bridge. It is the only explanation I can think about by now. Is there a better way to achieve this MAC “problem” in my case? perhaps there is a checkbox or something…

Regards

  • hippe
2

Yes masquerading mac addresses are possible in RouterOS.
/interface bridge nat
add action=src-nat …