Need Help Configuring New Cloud Core - Dual Network

RouterOS General
1

I have the following network spaces. IP’s are changed to keep anonymous.
Public Network: 183.90.145.0/25
Public Gateway: 183.90.145.1 This is a Cisco router where I get a hand off from our ISP.

Internal Private Network: 192.168.20.0/21
Private Gateway:192.168.20.1

I want to use only 2 ports on the cloud core and all traffic must pass through the normal firewall (not the bridge firewall).
I currently have it working in a 3 port configuration with the following:

  • port 1 going to the Cisco hand off with 183.90.145.2 assigned to it
  • port 2 is bridged to port 1
  • port 3 has the 192.168.20.0/25 network on it with 192.168.20.1 IP assigned to it.
  • On the bridge I have firewall rules to allow traffic to and from port 3.
  • NAT masquerade is set up to route 192.168.20.0/25 traffic to the bridge interface.
  • I then have a switch that combines the public and private network together so I can assign either a public or private address on the network.
  • default route 0.0.0.0/0 to port 1

Any and all ideas/criticism are welcome. I have only a little experience from taking Cisco classes in High School so I apologize if my current setup seems odd or not. Thanks

2

I see that a few have viewed this page but no help yet. Anyone have any ideas on how this can be done? Thank You.

3

you’d better ask your ISP to route that address block to you, not to bridge.

4

I would but I don’t have my ASN in place yet. Can I have them route it to me without it? I didn’t think you could do that. Even with the IP’s assigned to me I would like to have a single port be the gateway for both networks. Any Ideas?

5

you don’t need it

sure, they just replace ipif address with some other one (even private one) and add route to your subnet via your address paired to their

you then add both (for example) 183.90.145.1/25 and 192.168.20.1/21 to your LAN interface and have fun :slight_smile: