I can’t find a way to create sub-interfaces on a MikroTik device. I.e. on a cisco device
Interface g0/1
no shut
Interface g0/1.10
ip address 10.0.10.1
Interface g0/1.20
ip address 10.0.20.1
Interface g0/1.30
ip address 10.0.30.1
Now I know that yes you can assign multiple IP addresses on a MikroTik however that’s not necessarily the only reason for wanting sub interfaces. Perhaps i.e. I want to monitor traffic only on the 10.0.10.1 ‘interface’ and not have traffic from .20.x and .30.x counted in the collection. Maybe I have 2 public IP’s and 2 internet connectiosn on ether1 (which is connected to 2 other router’s via a switch) and I want to monitor bandwidth on each internet connection separately (and I don’t own the upstream routers / have no access to them)
I believe the closest equivalent on a Mikrotik is to create multiple VLAN interfaces on the physical interface, however its mandatory to specify a VLAN number and I don’t necessarily want to use tagged VLAN’s