2 files changed, 11 insertions, 1 deletions

diff --git a/src/input_common/drivers/udp_client.cpp b/src/input_common/drivers/udp_client.cpp
index 192ab336b..7cab707da 100644
--- a/src/input_common/drivers/udp_client.cpp
+++ b/src/input_common/drivers/udp_client.cpp
@@ -4,6 +4,7 @@
 
 #include <random>
 #include <boost/asio.hpp>
+#include <fmt/format.h>
 
 #include "common/logging/log.h"
 #include "common/param_package.h"
@@ -279,6 +280,7 @@ void UDPClient::StartCommunication(std::size_t client, const std::string& host,
                             [this](Response::PortInfo info) { OnPortInfo(info); },
                             [this, client](Response::PadData data) { OnPadData(data, client); }};
     LOG_INFO(Input, "Starting communication with UDP input server on {}:{}", host, port);
+    clients[client].uuid = GetHostUUID(host);
     clients[client].host = host;
     clients[client].port = port;
     clients[client].active = 0;
@@ -293,12 +295,18 @@ void UDPClient::StartCommunication(std::size_t client, const std::string& host,
 const PadIdentifier UDPClient::GetPadIdentifier(std::size_t pad_index) const {
     const std::size_t client = pad_index / PADS_PER_CLIENT;
     return {
-        .guid = Common::UUID{clients[client].host},
+        .guid = clients[client].uuid,
         .port = static_cast<std::size_t>(clients[client].port),
         .pad = pad_index,
     };
 }
 
+const Common::UUID UDPClient::GetHostUUID(const std::string host) const {
+    const auto ip = boost::asio::ip::address_v4::from_string(host);
+    const auto hex_host = fmt::format("{:06x}", ip.to_ulong());
+    return Common::UUID{hex_host};
+}
+
 void UDPClient::Reset() {
     for (auto& client : clients) {
         if (client.thread.joinable()) {
diff --git a/src/input_common/drivers/udp_client.h b/src/input_common/drivers/udp_client.h
index 639325b17..1f02adba5 100644
--- a/src/input_common/drivers/udp_client.h
+++ b/src/input_common/drivers/udp_client.h
@@ -69,6 +69,7 @@ private:
     struct ClientConnection {
         ClientConnection();
         ~ClientConnection();
+        Common::UUID uuid{"7F000001"};
         std::string host{"127.0.0.1"};
         u16 port{26760};
         s8 active{-1};
@@ -87,6 +88,7 @@ private:
     void OnPadData(Response::PadData, std::size_t client);
     void StartCommunication(std::size_t client, const std::string& host, u16 port);
     const PadIdentifier GetPadIdentifier(std::size_t pad_index) const;
+    const Common::UUID GetHostUUID(const std::string host) const;
 
     // Allocate clients for 8 udp servers
     static constexpr std::size_t MAX_UDP_CLIENTS = 8;