Configuration of iSCSI Initiators does not work

Hello,

I try to configure iSCSI Initiators and Allowed Networks for the iSCSI Connections.

But nothing works, if I write a WWN () or a hostname in the initiators field or IP-address to allowed networks all my servers can access the iSCSI LUNs although they aren´t allowed.

I don´t want to use CHAP.

What´s wrong there?