Fix the issue that setting net.inet6.ip6.forwarding=1 does not take effect.

Author: jfb8856606

config.ini

@@ -179,10 +179,6 @@ net.inet.tcp.tcbhashsize=65536
 kern.ncallout=262144
 
 kern.features.inet6=1
-net.inet6.ip6.auto_linklocal=1
-net.inet6.ip6.accept_rtadv=2
-net.inet6.icmp6.rediraccept=1
-net.inet6.ip6.forwarding=0
 
 [freebsd.sysctl]
 kern.ipc.somaxconn=32768
@@ -211,6 +207,11 @@ net.inet.udp.blackhole=1
 net.inet.ip.redirect=0
 net.inet.ip.forwarding=0
 
+net.inet6.ip6.auto_linklocal=1
+net.inet6.ip6.accept_rtadv=2
+net.inet6.icmp6.rediraccept=1
+net.inet6.ip6.forwarding=0
+
 # set default stacks:freebsd, rack or bbr, may be you need increase the value of parameter 'freebsd.boot.hz' while use rack or bbr.
 net.inet.tcp.functions_default=freebsd
 # need by bbr, should enable it.