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 | | When the source IP address of the FBU is PCoA, i.e., the FBU is sent from the PAR's link, and the HI message MUST have a Code value set to 0; see Section 6.2.1. |
 | | When the source IP address of the FBU is not PCoA, i.e., the FBU is sent from the NAR's link, the HI message MUST have a Code value of 1; see Section 6.2.1. |
 | | Secure FBU, malicious or inadvertent redirection: In this case, the FBU is secured, but the target of binding happens to be an unsuspecting node due to inadvertent operation or malicious intent. |
| www.ietf.org /rfc/rfc4068.txt (8481 words) |
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