.PP
(The spaces in the above are optional.)
.PP
-The leading sign says whether
-matching addresses should be
+The leading sign says whether matching addresses should be
.I accepted
.RB (` + ')
or
Matches the address of one of the machine's network interfaces.
.TP
.I address
-Matches just the given address. An
+Matches just the given IPv4 or IPv6 address. An
.I address
-may be enclosed in square brackets.
+may be enclosed in square brackets; IPv6 addresses must be so enclosed,
+because colons are significant in the rest of the ACL syntax.
.TP
.IB address \- address
Matches any address which falls in the given range. Addresses are