I have been trying to configure my mikrotk RB4011 to be able to have a device with the same IP address on each interface of the router. I have seen on other forum posts that this seems to be doable but I cannot seem to get it to work.
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I have put my setup below hopefully I'm doing something stupid.
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/ip address
add address=192.168.1.12/24 interface=ether1 network=192.168.1.0
add address=192.168.1.13/24 interface=ether1 network=192.168.1.0
add address=192.168.1.14/24 interface=ether1 network=192.168.1.0
add address=10.0.0.1 interface=ether2 network=10.0.0.1
add address=10.0.0.1 interface=ether3 network=10.0.0.1
add address=10.0.0.1 interface=ether4 network=10.0.0.1
/routing/table
add name=port2 fib
add name=port3 fib
add name=port4 fib
/ip firewall mangle
add action=mark-connection chain=prerouting dst-address=192.168.1.12 new-connection-mark=port2
add action=mark-connection chain=prerouting dst-address=192.168.1.13 new-connection-mark=port3
add action=mark-connection chain=prerouting dst-address=192.168.1.14 new-connection-mark=port4
add action=mark-routing chain=prerouting connection-mark=port2 new-routing-mark=port2 passthrough=no
add action=mark-routing chain=prerouting connection-mark=port3 new-routing-mark=port3 passthrough=no
add action=mark-routing chain=prerouting connection-mark=port4 new-routing-mark=port4 passthrough=no
/ip firewall nat
add action=dst-nat chain=dstnat dst-address=192.168.1.12 dst-port=443 protocol=tcp to-addresses=10.0.0.120
add action=dst-nat chain=dstnat dst-address=192.168.1.13 dst-port=443 protocol=tcp to-addresses=10.0.0.120
add action=dst-nat chain=dstnat dst-address=192.168.1.14 dst-port=443 protocol=tcp to-addresses=10.0.0.120
add action=masquerade chain=srcnat out-interface=ether2
add action=masquerade chain=srcnat out-interface=ether3
add action=masquerade chain=srcnat out-interface=ether4
/ip route
add distance=1 dst-address=10.0.0.1/24 gateway=ether2 routing-table=port2
add distance=1 dst-address=10.0.0.1/24 gateway=ether3 routing-table=port3
add distance=1 dst-address=10.0.0.1/24 gateway=ether3 routing-table=port4