Three CRS and ICMP ping problem

RouterOS Beginner Basics
1

Hi all,

Having this configuration:

  • CRS 1:
    |-----ether1: no master port, external network connection (internet)
    |-----ether2: no master port, external network connection (other internet provider)
    |-----ether3: no master port, local connection, ip address: 192.168.88.1
    |-----ether4 to ether24: master port ether3

  • CRS 2:
    |-----ether1: no master port, interface for manage (winbox, etc…), ip address: 192.168.88.5. Connected to CRS 1 port ether4.
    |-----ether2: no master port
    |-----ether3 to ether24: master port ether2

With this config, all is working fine:

  • CRS 1 have network connection, any device (PC, etc…) connected to CRS 1 have internet.
  • CRS 2 have network connection.

From my computer, I can ping 192.168.88.1 (CRS 1) and 192.168.88.5 (CRS 2), so that’s perfect.

Now, I connect a new CRS with this config:

  • CRS 3:
    |-----ether1: no master port, interface for manage (winbox, etc…), ip address: 192.168.88.10. Connected to CRS 1 port ether5.
    |-----ether2: no master port
    |-----ether3 to ether24: master port ether2

After this, I start to having problem with CRS 2 and CRS 3:

  • When CRS 2 reply to ping, CRS 3 don’t reply.
  • When CRS 3 reply to ping, CRS 2 don’t reply.

While running ping, I get this message:

“92 bytes from f1-r01-swt01.s4n (192.168.88.10): Redirect Host(New addr: 192.168.88.5)”

If I disconnect CRS 3, all work other time (ping reply OK from CRS 2), and if I disconnect CRS 2, all work fine with CRS 3 (ping reply OK from CRS 3).

The problem only happen if I connect CRS 2 and CRS 3 at the same time to CRS 1.

Any idea?

Thanks.