Add support for shaping ipv6 on Linux (#100)

Author: soulgalore

lib/tc.js

@@ -74,6 +74,30 @@ async function setup(defaultInterface) {
     'dev',
     'ifb0'
   );
+  await sudo(
+    'tc',
+    'filter',
+    'add',
+    'dev',
+    defaultInterface,
+    'parent',
+    'ffff:',
+    'protocol',
+    'ipv6',
+    'u32',
+    'match',
+    'u32',
+    '0',
+    '0',
+    'flowid',
+    '1:1',
+    'action',
+    'mirred',
+    'egress',
+    'redirect',
+    'dev',
+    'ifb0'
+  );
 }
 
 async function setLimits(up, down, halfWayRTT, packetLoss, indexFace) {