I’am struggling into something that I think is simple. Basically, I would like my RB951 to work like a simple commercial wifi access point, where you just plug in the cable from the switch on the RB951 LAN port and it will take a management IP and will be giving IP to the client from the switch dhcp range.
What happening is when I connect the RB951 from the switch it gives 192.168.88.* range. Please help.
I suppose that is the default configuration from Mikrotik..my suggestion is remove the default configuration and start over. 
Connect to the device using Winbox via mac address (since we’ll be changing IPs in the device)
Go to IP > DHCP Server, highlight the default entry and click the disable button (red x)
Go to IP > Addresses, delete the 192.168.88.1 ip address from local-bridge (ports 2-4 are bridged into one interface)
Go to IP > DHCP Client, add an entry make the device request an IP via DHCP.
Some notes: You don’t actually need a valid IP configured for local-bridge. You can leave it empty. You’ll still be able to manage it with Winbox connecting to it via mac. You can also go to System > Identity and name the device, so when you detect multiple Mikrotiks in Winbox it’ll be easier to identify which is which.
Yes, that’s what I should do, but I’m lost. Please guide me. I tried to change the DHCP server range to 10.0.36.40-10.0.36.45 but it didn’t work and it disabled the switch port. The wifi client PC took 192.168.88.254 as the IP and couldn’t ping any IP from 10.0.36.* and vice versa.
I’m also wondering how the traffic is flowing from the wifi client to the internet.
when I did a traceroute from the client it goes directly to the gateway 10.0.36.1, then firewall, and so on. It didn’t go through 10.0.36.180.
Van9018, before proceeding with this configuration, the cable from switch is connected to port 1 (gateway on default/current config) and the internet is working fine on the clients. Should I transfer the cable from port 1 to port 2,3, or 4 after the configuration?
I have done step 1 and 2
On IP > DHCP Client, add an entry make the device request an IP via DHCP.
Which interface should I choose?
Check out the attached photo, that’s the network map you want? Mikrotik is just a wifi AP?
If you want the wifi clients to be on the same subnet as the rest of the network (10.0.36.0/24) then don’t use port 1 altogether. You don’t need it for the initial config either.
Starting from scratch with factory config, ports 2 to 4 plus the wifi are already switched. Plug your laptop into port 2. (it wouldn’t actually matter if you plugged it into 2, 3, or 4)
Then your laptop gets the IP 192.168.88.254.
Use Winbox to connect to the Mikrotik and connect via mac address. Life is easier this way.
First step is to disable the DHCP server since your primary router is serving DHCP.
Go to IP > DHCP Server, highlight the default entry and click the disable button (red x)
Your laptop continues to have 192.168.88.24 until you release and renew, but don’t do that yet.
So now your Mikrotik still has 192.168.88.1 as the IP for the local-bridge interface.
Do you want the Mikrotik to have a static 10.0.36.x address? If yes, then:
Go to IP > addresses, edi tthe 192.168.88.1 address to the static 10.0.36… you’ll assign to it.
If you want the Mikrotik to have a dynamic IP assigned by the primary router, then delete the address. Then:
Go to IP > DHCP Client, add an entry make the device request an IP via DHCP. Interface should be local-bridge
Finally, release and renew your laptop IP, you should get a 10.0.36.x address assigned by your primary router.
map.png
Thank you for your reply Van9018. That network map is exactly what I want to achieve. To be more specific our connection is like this: internet > cisco router > avaya switch VLAN 36 > mikrotik RB951 > computers
After I make the above configuration, on which port should I connect the cable coming from the switch?
Someone also suggested to change the Mikrotik mode from Router mode to bridge mode, but whenever I do so the avaya switch port which is connected to port 1 of mikrotik is getting disabled.
Use port 2 on the Mikrotik.
As for Bridge/Router mode, I’ve never changed mine and it works.