routerset_parse doesn't accept IPv6 addresses
routerset_parse accepts addresses containing '.' (literal IPv4) and '*' (wildcard, potentially IPv4 and/or IPv6). But it doesn't accept addresses containing ':' (literal IPv6).
This is a bugfix on 3ce6e2fba290 (Thu Jul 24 13:44:04 2008) in 0.2.1.3-alpha, and similar code which added IPv6 address parsing capabilities to