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Hubs & Spokes Assumptions NAT/PAT (in IPv4) is present Not always upgradeable CPE router “Stable” IPv6 prefix desired Softwires initiated by customer Customer side: softwire initiator May be a host or a router ISP side: softwire concentrator Routing: default route from softwire initiator to concentrator (CPE routers do not generally run a routing protocol, but the softwire solution will work even if it does.) |