IPv6 Plug and Play
A. Address
link local: fe80::/64. similar to 169.254.x.x
global: routable address.
B.Algo
区分 RS, RA , NS and NA
a, Host boot up.
-case 1: host A received regular Router advertisement (::1) which include the prefix. prefix + its own mac ==> new global IPv6 address.
-case 2: host send out Router solicitation(::2). router reply RA.
b, after got global address, it is ready to talk to destination.
-case 1: dst in local. Host send out neighbor solicitation and the dst response neighbor advertisement. Works like ARP.
-case 2: dst at remote. Host send out NS for gateway.
Wednesday, March 2, 2011
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