CLI is expecting a number
vyos@vyos# set protocols babel distribute-list ipv6 access-list in Possible completions: <0-4294967295> Access list to apply to input packets
but IPv6 access-lists have names
vyos@vyos# set policy access-list6 Possible completions: > <text> Name of IPv6 access-list
Resulting in
vyos@vyos# set protocols babel distribute-list ipv6 access-list in foo 'foo' is not a valid number Invalid value Value validation failed Set failed