diff --git a/index.d.ts b/index.d.ts
index fe15ac4..5b0c8c2 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -24,6 +24,8 @@ declare module "bedrock-protocol" {
   }
 
   export interface ClientOptions extends Options {
+    // The username to connect to the server as
+    username: string,
     // The view distance in chunks
     viewDistance?: number,
     // Specifies which game edition to sign in as. Optional, but some servers verify this.
diff --git a/tools/genPacketDumps.js b/tools/genPacketDumps.js
index a6741ea..4176b65 100644
--- a/tools/genPacketDumps.js
+++ b/tools/genPacketDumps.js
@@ -18,11 +18,11 @@ function hasDumps (version) {
 let loop
 
 async function dump (version, force = true) {
-  const random = ((Math.random() * 100) | 0)
-  const port = 19130 + random
+  const random = (Math.random() * 1000) | 0
+  const [port, v6] = [19132 + random, 19133 + random]
 
   console.log('Starting dump server', version)
-  const handle = await vanillaServer.startServerAndWait(version || CURRENT_VERSION, 1000 * 120, { 'server-port': port })
+  const handle = await vanillaServer.startServerAndWait(version || CURRENT_VERSION, 1000 * 120, { 'server-port': port, 'server-portv6': v6 })
 
   console.log('Started dump server', version)
   const client = new Client({