diff --git a/wg-p2p-client.py b/wg-p2p-client.py
index 49ab6bd..eaa4cdc 100644
--- a/wg-p2p-client.py
+++ b/wg-p2p-client.py
@@ -1,11 +1,28 @@
+import hashlib
 from time import sleep
 import yaml
 import requests
+from wgconfig import WireGuardConfig, wg_showconf, wg_syncconf
 with open("wg-p2p-client.conf") as f:
     cfg = yaml.safe_load(f)
 last_hash = ""
+last_local_hash = ""
 url = f"{cfg['url']}/hash/{cfg['remote_wg']}"
+urlpat2 = f"{cfg['url']}/peers/{cfg['remote_wg']}"
 while True:
     new_hash = requests.get(url).text
-    print(new_hash)
+    new_local_hash = hashlib.sha256(wg_showconf(
+        cfg["local_wg"]).encode()).hexdigest()
+    if last_hash != new_hash or last_local_hash != new_local_hash:
+        print(f"update hash to {new_hash}")
+        print(f"update local_hash to {new_local_hash}")
+        local_cfg = WireGuardConfig.get_from_interface(cfg["local_wg"])
+        for peer in cfg["peers"]:
+            if p := local_cfg.get_peer(peer):
+                url2 = f"{urlpat2}/{peer}"
+                res = requests.get(url2).json()
+                p["Endpoint"] = res["Endpoint"]
+        wg_syncconf(cfg["local_wg"], str(local_cfg))
+    last_hash = new_hash
+    last_local_hash = new_local_hash
     sleep(5)
\ No newline at end of file
diff --git a/wgconfig.py b/wgconfig.py
index 725ac3c..481e4d8 100644
--- a/wgconfig.py
+++ b/wgconfig.py
@@ -72,4 +72,4 @@ def wg_showconf(ifname: str):
 
 
 def wg_syncconf(ifname: str, conf: str):
-    run(f"wg syncconf {ifname} /dev/stdin", shell=True, input=conf)
+    run(f"wg syncconf {ifname} /dev/stdin", shell=True, input=conf.encode())