GetLLAFromMAC returns an IPv6 LLA from mac, according to the alg described in Appendix A of RFC4291.

NewDefaultIPv6ND creats a new IPv6ND with default settings.

NewIPv6ND creates a new IPv6ND, with following parameters: ownmac, ownip is used as source MAC/IP for egress NS; life specifies how long an existing entry need to be re-probed; recvchandepth is the depth of receives msg channel; logf is the logging function; if probe is true, then system will send probe for unresolved IP, probeinterval is the retry interval for probe;.

IPv6ND does two jobs: 1.