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| | [No title] |
 | | From address autoconfiguration's perspective, an interface token is a bit string of known length. |
 | | However, when stateless address autoconfiguration is used, address uniqueness is determined solely by the interface token, assuming that subnet prefixes are assigned correctly (i.e., if all of an interface's addresses are generated from the same token, either all addresses or none of them will be duplicates). |
 | | Thus, to perform Duplicate Address Detection correctly in the case where two interfaces are using the same link-layer address, an implementation must have a good understanding of the interface's multicast loopback semantics, and the interface cannot discard received packets simply because the source link-layer address is the same as the interfaces. |
| www.ietf.org /rfc/rfc1971.txt (7047 words) |
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