Hi all,

we are a WISP and this is the actual setup:

Public ip subnet between us and internet provider: 10.0.0.0/29

Internet Provider router: 10.0.0.1
Our CCR on sfp1: 10.0.0.2

Now our internet provider give us some Public IP pools, like this 10.0.1.0/26

Before our customer we have several routers, always mikrotik (1100AHx2).

We actually use OSPF but not PPPOE

If I want to bring a public ip through routing to a customer and not doing a 1:1 NAT how I can do?

All IP are just symbolic.

Sorry for my bad english and thank you!

So you control the customers facing WAN ips? how?

well you would need to do nat private ip to public ip, and having that public subnet on your interface, or just make dhcp pool with public ip's and give them public ip's instead of private but that depends how are their edge devices configured.

You can route /32 from that /26 directly over your network or over IP tunnels, with or without OSPF.