SLAAC is handled by slaacd(8) nowadays, not the kernel anymore. We might just as well put this into the next version instead of it's own revision, but here's the diff so I won't forget.
Feedback? Index: Makefile =================================================================== RCS file: /cvs/ports/net/dhcpcd/Makefile,v retrieving revision 1.29 diff -u -p -r1.29 Makefile --- Makefile 11 Jan 2018 19:27:05 -0000 1.29 +++ Makefile 28 Jan 2018 05:45:57 -0000 @@ -3,7 +3,7 @@ COMMENT= DHCPv4/IPv4LL/IPv6RS/DHCPv6 quad stack client DISTNAME= dhcpcd-7.0.0 -REVISION= 0 +REVISION= 1 CATEGORIES= net EXTRACT_SUFX= .tar.xz Index: pkg/README =================================================================== RCS file: /cvs/ports/net/dhcpcd/pkg/README,v retrieving revision 1.4 diff -u -p -r1.4 README --- pkg/README 13 Sep 2017 19:51:33 -0000 1.4 +++ pkg/README 28 Jan 2018 05:45:57 -0000 @@ -24,7 +24,7 @@ require dhcp_server_identifier # disable running any hooks; not typically required for simple DHCPv6-PD setup script /usr/bin/true -# Disable dhcpcd's own router solicitation support; allow the kernel +# Disable dhcpcd's own router solicitation support; allow slaacd # to do this instead by setting "inet6 autoconf" in hostname.pppoe0 noipv6rs