diff --git a/resources/opcodes.json b/resources/opcodes.json
index feb0dc8..f89e34f 100644
--- a/resources/opcodes.json
+++ b/resources/opcodes.json
@@ -312,17 +312,17 @@
     ],
     "ClientLobbyIpcType": [
         {
-            "name": "RequestCharacterList",
+            "name": "ServiceLogin",
             "opcode": 3,
             "size": 24
         },
         {
-            "name": "RequestEnterWorld",
+            "name": "GameLogin",
             "opcode": 4,
             "size": 32
         },
         {
-            "name": "ClientVersionInfo",
+            "name": "LoginEx",
             "opcode": 5,
             "size": 1144
         },
diff --git a/src/bin/kawari-lobby.rs b/src/bin/kawari-lobby.rs
index bb80c6c..c0a9295 100644
--- a/src/bin/kawari-lobby.rs
+++ b/src/bin/kawari-lobby.rs
@@ -65,7 +65,7 @@ async fn main() {
                                 connection.initialize_encryption(phrase, key).await
                             }
                             SegmentType::Ipc { data } => match &data.data {
-                                ClientLobbyIpcData::ClientVersionInfo {
+                                ClientLobbyIpcData::LoginEx {
                                     sequence,
                                     session_id,
                                     version_info,
@@ -98,7 +98,7 @@ async fn main() {
                                         connection.send_error(*sequence, 1012, 13101).await;
                                     }
                                 }
-                                ClientLobbyIpcData::RequestCharacterList { sequence } => {
+                                ClientLobbyIpcData::ServiceLogin { sequence } => {
                                     // TODO: support selecting a service account
                                     connection.selected_service_account =
                                         Some(connection.service_accounts[0].id);
@@ -112,7 +112,7 @@ async fn main() {
 
                                     connection.send_account_list().await;
                                 }
-                                ClientLobbyIpcData::RequestEnterWorld {
+                                ClientLobbyIpcData::GameLogin {
                                     sequence,
                                     content_id,
                                 } => {
diff --git a/src/lobby/ipc/mod.rs b/src/lobby/ipc/mod.rs
index 8284581..dee0b72 100644
--- a/src/lobby/ipc/mod.rs
+++ b/src/lobby/ipc/mod.rs
@@ -35,10 +35,10 @@ impl Default for ClientLobbyIpcSegment {
         Self {
             unk1: 0x14,
             unk2: 0,
-            op_code: ClientLobbyIpcType::ClientVersionInfo,
+            op_code: ClientLobbyIpcType::LoginEx,
             server_id: 0,
             timestamp: 0,
-            data: ClientLobbyIpcData::ClientVersionInfo {
+            data: ClientLobbyIpcData::LoginEx {
                 sequence: 0,
                 session_id: String::new(),
                 version_info: String::new(),
@@ -81,8 +81,8 @@ impl Default for ServerLobbyIpcSegment {
 #[derive(Debug, Clone)]
 pub enum ClientLobbyIpcData {
     /// Sent by the client after exchanging encryption information with the lobby server.
-    #[br(pre_assert(*magic == ClientLobbyIpcType::ClientVersionInfo))]
-    ClientVersionInfo {
+    #[br(pre_assert(*magic == ClientLobbyIpcType::LoginEx))]
+    LoginEx {
         sequence: u64,
 
         #[brw(pad_before = 10)] // full of nonsense i don't understand yet
@@ -99,8 +99,8 @@ pub enum ClientLobbyIpcData {
         // unknown stuff at the end, it's not completely empty
     },
     /// Sent by the client when it requests the character list in the lobby.
-    #[br(pre_assert(*magic == ClientLobbyIpcType::RequestCharacterList))]
-    RequestCharacterList {
+    #[br(pre_assert(*magic == ClientLobbyIpcType::ServiceLogin))]
+    ServiceLogin {
         #[brw(pad_before = 16)]
         sequence: u64,
         // TODO: what is in here?
@@ -109,8 +109,8 @@ pub enum ClientLobbyIpcData {
     #[br(pre_assert(*magic == ClientLobbyIpcType::LobbyCharacterAction))]
     LobbyCharacterAction(LobbyCharacterAction),
     /// Sent by the client when it requests to enter a world.
-    #[br(pre_assert(*magic == ClientLobbyIpcType::RequestEnterWorld))]
-    RequestEnterWorld {
+    #[br(pre_assert(*magic == ClientLobbyIpcType::GameLogin))]
+    GameLogin {
         sequence: u64,
         content_id: u64,
         // TODO: what else is in here?
diff --git a/src/packet/parsing.rs b/src/packet/parsing.rs
index 30bd248..907e0f6 100644
--- a/src/packet/parsing.rs
+++ b/src/packet/parsing.rs
@@ -157,7 +157,7 @@ pub async fn send_packet<T: ReadWriteIpcSegment>(
         size: size as u32,
         connection_type,
         segment_count: segments.len() as u16,
-        unk3: 0,
+        version: 0,
         compression_type,
         unk4: 0,
         uncompressed_size: uncompressed_size as u32,