Programmatically modify Ethernet settings in iOS 10.x and above

Now, my question is, does iOS provides any public API to set static IP and subnet mask programatically for Ethernet settings.

No it does not.

Other than manually setting network options, do we have any way to set this programatically.

Programmatically, no. In managed environments like this you can often achieve such goals by installing a configuration profile. However, I looked through the Configuration Profile Reference and I can’t see anything that will let you set up static IP addresses, even on Wi-Fi.

The correct solution to this problem, IMO, is to have the accessory support Bonjour [1]. Then things will work out of the box, without any messing around with static IP addresses. If you control the firmware on the accessory, I recommend that you look into that. If you don’t control the firmware on the accessory then, alas, this isn’t an option.

Normally in situations like this I recommend that folks file an enhancement request for the features they need. You can still do that if you want, but I must set expectations here. What you’re looking for is a system management API and on iOS system management is done via configuration profiles, not via APIs.

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Quinn “The Eskimo!”
Apple Developer Relations, Developer Technical Support, Core OS/Hardware

let myEmail = "eskimo" + "1" + "@apple.com"

[1] That is:

• RFC 3927 Dynamic Configuration of IPv4 Link-Local Addresses

• RFC 6762 Multicast DNS

• RFC 6763 DNS-Based Service Discovery

Thank you for your reply. This is much appreciated.