Use mAP2nD eth1 as main switch port

RouterOS General
1

Hi everybody,

Than you for your help already.
I’ve a RouterBoard mAP2nd , my goal is to configure it as a dumb switch, but I’m struggling to use ether1 as one of the switch port. (I would like to use its PoE capabilities)
I managed to configure the bridge as a DHCP client of my home router (192.168.9.0/24) and have network and internet connection shared through the bridged port (ether2).
WAN interface is deactivated, DHCP server is deactivated and ether1 is part of the bridged ports.
So far, so good :slight_smile:
Where it goes wrong, it’s when I try to change the cable from ether2 to ether1 I lose the connection and it doesn’t get an IP as if the ether1 is not bridged. That’s sad because I would like to power the mAP2nD using PoE instead of the power adapter.

Any clues, hints, tips, tricks ? Maybe I missed something in the huge Mikrotik documentation that you may be able to pinpoint :wink:

# oct/30/2021 16:03:44 by RouterOS 6.49
# software id = HB9G-KBSZ
#
# model = RBmAP2nD
# serial number = DE4F0E97EE83
/interface bridge
add admin-mac=2C:C8:1B:C0:6C:22 auto-mac=no comment=defconf name=bridge

/interface wireless
set [ find default-name=wlan1 ] band=2ghz-b/g/n channel-width=20/40mhz-XX disabled=no distance=indoors frequency=auto installation=indoor mode=ap-bridge ssid=MikroTik-C06C24 wireless-protocol=802.11

/interface list
add comment=defconf name=WAN
add comment=defconf name=LAN

/interface wireless security-profiles
set [ find default=yes ] supplicant-identity=MikroTik

/ip hotspot profile
set [ find default=yes ] html-directory=hotspot

/interface bridge port
add bridge=bridge comment=defconf interface=ether2
add bridge=bridge comment=defconf interface=pwr-line1
add bridge=bridge comment=defconf interface=wlan1
add bridge=bridge interface=ether1

/ip neighbor discovery-settings
set discover-interface-list=LAN

/interface list member
add comment=defconf interface=bridge list=LAN
add comment=defconf disabled=yes interface=ether1 list=WAN
add interface=bridge list=WAN

/ip dhcp-client
add comment=defconf disabled=no interface=bridge

/ip dns
set allow-remote-requests=yes

/ip dns static
add address=192.168.88.1 comment=defconf name=router.lan

/system clock
set time-zone-name=Europe/Brussels

/tool mac-server
set allowed-interface-list=LAN

/tool mac-server mac-winbox
set allowed-interface-list=LAN
2

Hi,

Apparently the first mAP device i’m using is having issues with its eth1 port. The light on the switch is not lighting up and even when the cable is disconnected the eth1 led is “on” on the mAP.

So I’ve tried with a second mAP that I have. And there, I can configure it to full bridged and have internet connection to the existing network and the DHCP requests from the underlying devices are fulfilled. Only thing is that it still cannot acquire an IP address from the DHCP server (Ubiquiti Unifi USG) for the mAP itself. I’ve read on other forums threads that it can be due to multiple DHCP requests. Does this mean that the mAP is requesting an IP for each of its bridged ports? If it’s the case, is it possible to block that behaviour from mAP ?

Thanks for your answers.
Kr,
John.