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-rw-r--r--pyramid/authentication.py4
1 files changed, 4 insertions, 0 deletions
diff --git a/pyramid/authentication.py b/pyramid/authentication.py
index 4f6ed2c1d..190298f98 100644
--- a/pyramid/authentication.py
+++ b/pyramid/authentication.py
@@ -450,6 +450,10 @@ class AuthTktAuthenticationPolicy(CallbackAuthenticationPolicy):
Default: ``False``. Make the requesting IP address part of
the authentication data in the cookie. Optional.
+ For IPv6 this option is not recommended. It ties the authentication
+ ticket to that individual's IPv6 address. Depending on the network they
+ are on, the IPv6 address that a user is using may expire quickly.
+
``timeout``
Default: ``None``. Maximum number of seconds which a newly