diff --git a/config/etc/sysctl.conf b/config/etc/sysctl.conf
index 7fe397bb7..6bf3bc887 100644
--- a/config/etc/sysctl.conf
+++ b/config/etc/sysctl.conf
@@ -31,6 +31,10 @@ vm.min_free_kbytes = 8192
 net.ipv6.conf.all.disable_ipv6 = 1
 net.ipv6.conf.default.disable_ipv6 = 1
 
+# However, enable some IPv6 hardening sysctl's in case this system is run customly _with_ IPv6.
+net.ipv6.conf.all.accept_redirects = 0
+net.ipv6.conf.default.accept_redirects = 0
+
 # Enable netfilter accounting
 net.netfilter.nf_conntrack_acct = 1