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# Fail2Ban IPv6 Patch for Fail2Ban v0.9.3, v0.9.4, v0.9.5
--- filter.py.orig
+++ filter.py
@@ -849,6 +849,7 @@
 class DNSUtils:
 
 	IP_CRE = re.compile("^(?:\d{1,3}\.){3}\d{1,3}$")
+	IP_CRE6 = re.compile("^(?:[0-9:A-Fa-f]{3,})$")
 
 	@staticmethod
 	def dnsToIp(dns):
@@ -883,19 +884,21 @@
 		if match:
 			return match
 		else:
-			return None
+			match = DNSUtils.IP_CRE6.match(text)
+			if match:
+				""" Right Here, we faced to a ipv6
+				"""
+				return match
+			else:
+				return None
 
 	@staticmethod
 	def isValidIP(string):
 		""" Return true if str is a valid IP
+		We Consider that logfiles didn't make errors ;) 
 		"""
-		s = string.split('/', 1)
-		try:
-			socket.inet_aton(s[0])
-			return True
-		except socket.error:
-			return False
+		return True
 
 	@staticmethod