diff --git a/sanic/request.py b/sanic/request.py
index ab70e49b..bc1be96b 100644
--- a/sanic/request.py
+++ b/sanic/request.py
@@ -169,14 +169,8 @@ class Request(dict):
     @property
     def ip(self):
         if not hasattr(self, '_ip'):
-            self._ip = None
-            for key in HEADER_PRECEDENCE_ORDER:
-                value = self.headers.get(key, self.headers.get(key.replace('_', '-'), '')).strip()
-                if value is not None and value != '':
-                    for ip_str in [ip.strip().lower() for ip in value.split(',')]:
-                        if ip_str and is_valid_ip(ip_str):
-                            if not ip_str.startswith(NON_PUBLIC_IP_PREFIX):
-                                self._ip = ip_str
+            self._ip = (self.transport.get_extra_info('peername') or
+                        (None, None))
         return self._ip
 
     @property