Value,Name,Definition,Reference
0,Reserved,,[RFC6124]
1,ID_OPAQUE,An opaque octet string,[RFC6124]
2,ID_NAI,"A Network Access Identifier, as defined in [RFC4282]",[RFC6124]
3,ID_IPv4,"An IPv4 address, in binary format",[RFC6124]
4,ID_IPv6,"An IPv6 address, in binary format",[RFC6124]
5,ID_FQDN,A fully qualified domain name,[RFC6124]
6,ID_DN,"An LDAP Distinguished Name formatted as a string, as defined in [RFC4514]",[RFC6124]
7-127,Unassigned,,
128-255,Reserved for Private Use,,[RFC6124]