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rfc4721
rfc4721
https://tools.ietf.org/html/rfc4721
RFC 4721: Mobile IPv4 Challenge/Response Extensions (Revised)
P953
Q47469810-8D6AEB9C-263B-49B4-BDB0-2A77761B386F
P953
rfc4721
https://tools.ietf.org/html/rfc4721