AlternateInterfaces allows the user to manually specify IP addresses to bind to in cases where the PMU Connection Tester cannot determine the full set of Ethernet IP addresses that are available.
Anytime you see an
Interface drop-down list in the PMU Connection Tester, this will be the list of Ethernet adapter names along with one of its associated IP addresses that the PMU Connection Tester was able to query. Since this list may not be exhaustive, as more than one IP address can resolve to a given Ethernet adapter, you can manually specify more to make sure the connection “goes out” on the desired IP.
Selecting the “Default” item in the
AlternateInterfaces just tells the PMU Connection Tester to use the default interface, i.e., whichever common Ethernet adapter the operating system considers the “default”. Technically the interface definition should be
Default|0.0.0.0|::0, this just defines a label, an IPv4 address and optionally an IPv6 address. For example, to add a custom IP address for an interface, you could define the
AlternateInterfaces this way:
Default|0.0.0.0|::0;MyInterface|192.168.1.91 - upon doing this the “MyInterface” item would should up in any of the
Interface drop-down lists and selecting it would cause the PMU Connection Tester to initiate traffic on the “192.168.1.91” IP address.
Hope that helps elucidate what that means…