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From Rob Bugh <>
Subject AMQ 4.1.2, FailoverTransport and Firewall
Date Fri, 13 Feb 2009 17:54:43 GMT

We have this configuration:
- AMQ 4.1.2
- Client outside of a firewall. Uses FailoverTransport to connect to
- Two brokers inside of firewall in master/slave configuration

Upon startup, if the client attempts to connect to the slave broker instead
of the master broker, the firewall ends up spoofing the client into thinking
the connection was successful to the broker. But in reality what happens is
the connection to the firewall succeeds and the client sends connectionInfo
and waits for response. The firewall then attempts to connect to the slave,
connection fails and after a period of time the firewall resets the
connection back to the client. However, by the time this happens the client
is already hung waiting for a response.

- Has anyone experienced this problem and found a workaround?
- Does this problem still exist in AMQ 5.x?

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