Using authorized-hosts with multiple NICs

I'm trying to limit cluster/grid membership using the authorized-hosts attribute, and I need to specify which Ethernet port is used when I start Coherence (or which one(s) to ignore). We have a "private" network setup that we want to run Coherence on, and the default NIC/port 0 is not part of that network.
So I need to tell Coherence to use a specific port when it starts and not just the first IP port/address it finds. Is there a way to specify which NIC/IP address Coherence uses when it creates/joins the cluster?
Following is the override file I place into tangosol-coherence-override.xml. This file is in the classpath before coherence.jar when i start my JVM.
<?xml version='1.0'?>

<coherence xml-override="/tangosol-coherence-override.xml">
<cluster-config>
     <authorized-hosts>
     <host-address id="1">172.16.1.1</host-address>
     <host-address id="2">172.16.1.2</host-address>
     <host-address id="3">172.16.2.1</host-address>
     <host-address id="4">172.16.2.2</host-address>
     </authorized-hosts>
</cluster-config>
</coherence>
Thanks in advance for your help.
Stacy Maydew

Hi Stacy,
it is possible to bind all Coherence traffic to a single network interface using the -Dtangosol.coherence.localhost=xxx.yyy.aaa.bbb and -Dtangosol.coherence.localport=xyzab which specifies which ip address and port to use for sending and receiving.
Alternatively you can use an operational configuration override file which specifies the unicast-listener configuration element (see the link for more information).
You may would also need to specify the -Djava.net.preferIPv4Stack Java property if your operating system/kernel also has IPv6 enabled and you want to use an IPv4 address, otherwise we saw packets lost due to them travelling on different interfaces.
Best regards,
Robert

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