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DHCPv6 and specifying IP exlcustions for a default /64 scope
Hello, I am currently in the process of setting up dhcpv6 on my AD server and I noticed that when you specify the dhcpv6 scope you are restricted to only setting a /64 prefix. (This is way more ...
You have to use a pair of exclusion ranges per scope. I'm sure if you've looked up to the IPv4 section, you'd have noticed "inclusion ranges". I submitted a request to have Microsoft include it back in 2010 but they declined.
Let's say you're trying to dole out 2001:1900:3000:4:abcd:dead:beef:0/113
Youd' set:
Exclusion 1 = 2001:1900:3000:4:: to 2001:1900:3000:4:abcd:dead:beef:0
Exclusion 2 = 2001:1900:3000:4:abcd:dead:beef:ffff to 2001:1900:3000:4:ffff:ffff:ffff:ffff
To be exact, it would technically be:
Exclusion 1 = 2001:1900:3000:4:: to 2001:1900:3000:4:abcd:dead:beee:ffff
Exclusion 2 = 2001:1900:3000:4:abcd:dead:bef0:0 to 2001:1900:3000:4:ffff:ffff:ffff:ffff
to include the first and last address in the range (if you really wanted the scope to start at the 0th address) but normally you don't result in "beee:ffff" it just makes doing the math harder.
Let's say you're trying to dole out 2001:1900:3000:4:abcd:dead:beef:0/113
Youd' set:
Exclusion 1 = 2001:1900:3000:4:: to 2001:1900:3000:4:abcd:dead:beef:0
Exclusion 2 = 2001:1900:3000:4:abcd:dead:beef:ffff to 2001:1900:3000:4:ffff:ffff:ffff:ffff
To be exact, it would technically be:
Exclusion 1 = 2001:1900:3000:4:: to 2001:1900:3000:4:abcd:dead:beee:ffff
Exclusion 2 = 2001:1900:3000:4:abcd:dead:bef0:0 to 2001:1900:3000:4:ffff:ffff:ffff:ffff
to include the first and last address in the range (if you really wanted the scope to start at the 0th address) but normally you don't result in "beee:ffff" it just makes doing the math harder.