1 files changed, 17 insertions, 4 deletions
diff --git a/src/service_identity/exceptions.py b/src/service_identity/exceptions.py
index 1dfc108..852abc1 100644
--- a/src/service_identity/exceptions.py
+++ b/src/service_identity/exceptions.py
@@ -10,7 +10,7 @@ from __future__ import absolute_import, division, print_function
 import attr
 
 
-class SubjectAltNameWarning(Warning):
+class SubjectAltNameWarning(DeprecationWarning):
     """
     Server Certificate does not contain a ``SubjectAltName``.
 
@@ -23,6 +23,7 @@ class VerificationError(Exception):
     """
     Service identity verification failed.
     """
+
     errors = attr.ib()
 
     def __str__(self):
@@ -32,24 +33,36 @@ class VerificationError(Exception):
 @attr.s
 class DNSMismatch(object):
     """
-    Not matching DNSPattern could be found.
+    No matching DNSPattern could be found.
     """
+
     mismatched_id = attr.ib()
 
 
 @attr.s
 class SRVMismatch(object):
     """
-    Not matching SRVPattern could be found.
+    No matching SRVPattern could be found.
     """
+
     mismatched_id = attr.ib()
 
 
 @attr.s
 class URIMismatch(object):
     """
-    Not matching URIPattern could be found.
+    No matching URIPattern could be found.
     """
+
+    mismatched_id = attr.ib()
+
+
+@attr.s
+class IPAddressMismatch(object):
+    """
+    No matching IPAddressPattern could be found.
+    """
+
     mismatched_id = attr.ib()