RB260GS + hAP ac

RouterOS Beginner Basics
1

Hello, guys!
I’m not a good with “network science”, so wanna ask you for help.
In my apartment I have such case:
diag.png
ISP: as ethernet input, only one MAC is allowed;
Switch: in past router as a bridge, now it’s RB260GS;
Router: hAP ac, clones MAC, spreads internet to iPhone and MacBook, also there is wired connection with PC.

I’ve restored the router to factory defaults and made the setup of wifi, and set IP as 192.168.88.1. DHCP is on.
IP of the switch is 192.168.88.2.

Problem: there is no internet, also I can’t ping the switch from the router or PC (but the router sees the switch as neighbour).
Maybe some configs are necessary, for example, firewall rules or IP routes, I dunno.

Any thoughts?

2

Ok, I’ve started from the beginning:

  1. ISP → Router → PC.
  2. Reset Router config
  3. Setup as Home AP Dual
  4. Select Address Acquisition as Automatic
  5. Change Router’s MAC (to prevent MAC filtering on ISP side)

On this step everything works great and I have access to the Internet from my PC via cable ethernet.

Now, I wanna replace Automatic Address Acquisition with Static (cause I know IP, netmask, GW already)
BUT, after doing that Internet is going off.
Tools → Ping: can’t ping 176.36.0.1 (ISP GW)

I’ve checked:

  1. IP → Routes, everything looks ok
  2. IP → DHCP Client, ether1 disabled
  3. IP → FIrewall, rules are same

Automatic:
routes_static.png
Static
routes_auto.png

3

Maybe your ISP’s router is miffy about talking to anything that hasn’t gotten its address through their DHCP server.

4

Was talking with ISP support, they asked me to use Automatic Address Acquisition.
In this case, can I use it AFTER switch?

5

What is the purpose of this switch? Or there any wired devices connected to the switch? Does it work when you only connect the router?

I’ve restored the router to factory defaults and made the setup of wifi, and set IP as 192.168.88.1. DHCP is on.
IP of the switch is 192.168.88.2.

The address on the router is LAN side while the switch is connnected on the WAN side. That doesn’t make sense…

6

The purpose is a little bit funny.
I need to connect the end of the ISP cable with my router using extra solution, cause router is to far from the end of ISP cable.
Of course, I can use one more router, but I haven’t it. Don’t wanna buy it, if I can use the switch just to pass internet to the router

7

Okay, I’ve found my old Linksys router, plugged ISP into it, selected static IP and… it works.
So, the problem isn’t with ISP, it’s with MikroTik router’s setup :frowning:

8

“ISP: as ethernet input, only one MAC is allowed;”

How did the ISP implement this check? Either they use a modem with only 1 MAC table for DHCP, or they have a very very long DHCP lease time.

In both cases your OLD router will work. But no other device can get an IP address for a long time.
Two workaround, before pulling the old router, do a release of the DHCP lease., or just clone the MAC address. (what you did)
Be sure that the RB260GS is not getting the only ISP IP address (IP address for management) that you are allowed to have.
(The static 192.168.88.2 will not be reachable however)

Static IP will not be allowed because they probably change the assigned IP address every day.
Why do you want to make it static?

The RB260GS switch should just pass everything, also the DHCP handshake. (Normally the switch is invisible to the TCP/IP network protocol)

9

Thank you all for your help!
I’ve decided not to use the switch as the 1st layer device.
In the future I’ll place something like hEX router (cable connection will be needed at the kitchen, switch in this situation will not be helpful, another IP address will be needed), now I just use some simple LAN coupler to connect ISP cable with my cable inside the apartment, which goes to hAP ac.
So, I’ve gained a good new experience. I hope it will help me in the future xDDD
Have a nice day!

10

FYI: A switch does not need an IP address to operate. Also a MKT GPeR might give you the extension you want.