I've found it useful, from advice online, to set custom link-local IPv6 addresses for management & consistent configuration on various networks & server racks. I had the chance to deploy some Miktrotik routers lately, and those run RouterOS; version 7 of which has good IPv6 support. One thing it doesn't immediately offer, is the ability to set additional link-local addresses. That being said, I found a forum post indicating how that could be done; and wanted to document that further here. Basically, someone figured out you could set an address pool of fe80::/56 (subset of fe80::/10), and then a subnet (fe80::/64), to put said addresses in.
¶
UI method
¶
CLI/Terminal method
/ipv6/pool/add name=link-local prefix=fe80::/56 prefix-length=64
/ipv6/address/add from-pool=link-local advertise=no address=::1 interface=bridge