Sync iPhone over Wi-Fi with Mac when iPhone is connected to the Wi-Fi created by Internet Sharing

When my Mac and iPhone are connected to the same Wi-Fi network, I can sync my iPhone wirelessly using iTunes Wi-Fi Sync, and perform third party syncing like 1Password Wi-Fi sync.

However, the problem is that most of the time my Mac is connected to Ethernet, and my iPhone is connected to the Wi-Fi network created by Internet Sharing (Ethernet to Wi-Fi). When I'm under this setting, Wi-Fi syncing never works — for instance, iTunes Wi-Fi Sync is always stuck on "looking for [computer name]...".

Therefore, my question is: is it possible to tweak the network settings so that my Mac and iPhone could sync over Wi-Fi when the iPhone is connected to the Wi-Fi created by Internet Sharing? As a layman, it seems to me that since my Mac and iPhone are on the same LAN (are they?), syncing should be possible.

(I really want to use Wi-Fi syncing these days because I'm running short on USB ports — they are all taken up by external drives. Meanwhile I can't give up the Ethernet since that's a five-to-ten-time speed boost.)

Note that:

• I know very little about networking so please be detailed if you can;


• The command line is part of my daily workflow so please feel free to suggest command line solutions, provided that they are not ugly hacks that will potentially put my network under risk (if you do suggest an ugly hack, please consider explaining it or pointing to external resources — I have to understand a hack before applying it).

Thanks.

By the way, this is how my Network Preferences look like when Internet Sharing is on: