With different listeners, you can listen on different ip addresses or ports. Also a note on listeners. With default installation, it isn't possible to have more than one http listener with same port although the IP addresses are different. This is a bug and mentioned at glassfish issues 570, 3095 and 5067. Adding <jvm-options>-Dcom.sun.enterprise.server.ss.ASQuickStartup=false</jvm-options> seems to fix the problem.
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