Unique Local Unicast Addresses Analogous to private IPv4 addresses Used for local communications,inter-site VPNs,and so forth Not routable on the Internet(routing would require IPv6 NAT) Figure 2-5 Unique Local Unicast Address Format -128 Bits- 1 Global ID 40 Bits Interface ID 1111110 Subnet ID ED00:/7 16 Bits 7 Bits 1 Bit:L=1 Locally assigned;L=0 Future UseUnique Local Unicast Addresses ◼ Analogous to private IPv4 addresses ◼ Used for local communications, inter-site VPNs, and so forth ◼ Not routable on the Internet (routing would require IPv6 NAT)