I'd like to use a subnet of our public IP addresses in the DMZ like shown in this picture:


Does my provider have to add a routing entry on the first router for the DMZ-net? Can I assign the whole net to the WAN interface of the second router and forward a subnet of that to the DMZ? I guess the only possiblity was bridging then?


Your provider should add a route indicating that 1-10 (or the actual CIDR block you are using) pointing to your router. It is possible some routers can use proxy-arp to make this work without the providers assistance.

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