How to add a broadcast address to loopback with ifconfig on a OS/X?

Posted by chrisapotek on Server Fault See other posts from Server Fault or by chrisapotek
Published on 2012-08-26T17:43:49Z Indexed on 2012/08/28 21:42 UTC
Read the original article Hit count: 269

Filed under:

linux

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networking

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macosx

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udp

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ifconfig

I am trying to use ifconfig to turn on broadcast on my loopback interface. It currently reads:

lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384

As you can see, no broadcast address! :( :( :(

I tried this on OS/X but it did not work and it did not give any error or feedback:

ifconfig lo0 broadcast 127.255.255.255

Any guru would know that?

I have one server that sends one packet. I have two clients running on the same machine as the server. I need them to pick up the packet WITHOUT having to force the server to send it twice.

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