Newb question, for nodes that are in this format, example: 2001:0:4137:9e76:1478:32c0:a95c:54aa, can you add these to your config? Does the Port still need to be appended like below?
addnode=2001:0:4137:9e76:1478:32c0:a95c:54aa:26855
addnode=[2001:0:4137:9e76:1478:32c0:a95c:54aa]
or
addnode=[2001:0:4137:9e76:1478:32c0:a95c:54aa]:26855
Such peers will work only if wallet was compiled with IPv6 support and your provider supports IPv6 too.
Port is not required, hardcoded one will be used by default.
Also, addnode is not really needed at all) Peers should be discovered automatically as time passes.