Configuring a GRE Site-to-Site VPN with NAT and OSPF in Huawei eNSP
Enterprise A (AR1) and Enterprise B (AR4) access the public core through NAT The core routers (AR2, AR3) exchange routes using OSPF A GRE tunnel connects the private LANs behind AR1 and AR4 Addressing overviwe AR1 LAN: 10.0.1.0/24 (G0/0/0) WAN: 100.64.1.0/30 (G0/0/1) — peer AR2 AR2 To AR1: 100.64.1...