feat: add dummynet ipv6 throttling commands

Author: td2thinh

lib/pfctl.js

@@ -13,7 +13,10 @@ export async function start(up, down, rtt = 0, packetLoss = 0) {
   await sudo('dnctl', 'pipe', 2, 'config', 'delay', '0ms', 'noerror');
 
   await shell(
-    'echo "dummynet in from any to ! 127.0.0.1 pipe 1\ndummynet out from ! 127.0.0.1 to any pipe 2" | sudo pfctl -f -'
+    'echo "dummynet in inet from any to ! 127.0.0.1 pipe 1\n' +
+    'dummynet out inet from ! 127.0.0.1 to any pipe 2\n' +
+    'dummynet in inet6 from any to ! ::1 pipe 1\n' +
+    'dummynet out inet6 from ! ::1 to any pipe 2" | sudo pfctl -f -'
   );
 
   if (down) {