Objects of type
ipv6-address
represent an IPv6 address.
ipv6-address
objects are normally created by get-host-entry. They can also be created by parse-ipv6-address.
ipv6-address
can be used whereever an IP address is needed, most commonly open-tcp-stream, except that ipv6-address-string takes only an IPv4 address (that is, integers).
ipv6-address
may contain a scope ID, which is not really part of the address, but is needed for using local addresses.
LispWorks User Guide and Reference Manual - 21 Dec 2011