[jboss-as7-dev] Session Replication

I'm having trouble getting session replication to work on CR1. With a setup similar to what Paul demonstrated in the clustering video (two servers, each bound to a local interface), when I set a session attribute on server A, I get this on server B: https://gist.github.com/1076329 Even though that trace refers to some torquebox modules, I get the exact same error when I use the standalone-ha.xml configs in the dist. Anyone seen this or have any ideas or suggestions? Thanks, Jim