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IPv4 over IPv6 Softwire with L2TPv3: Case 2 – Router behind CPE as Softwire Initiator
LNS
CPE
Dual AF Router

IPv6
IPv4 Address Assignment and DNS
via new L2TPv3 AVPs
Private IPv4
addresses and
DNS, etc.
DHCP
ISP to Dual AF Router IP Assignment and Auto-Config
Dual AF Router to Hosts IP Assignment and Auto-Config
IPv4 Payload
L2TPv3 o IPv6
PPT Version