Create UDP server using C++ to embed in cross platform iOS and Android app

I am developing a cross-platform mobile game (iOS and Android) using cocos2d-x. Most of my code is written in C++, with OS specific code in Objective-C / Java / Swift using a bridge.

I was wondering if anyone has used any C++ library to host a UDP server within their app ?

EDIT: So far I have found many platform specific solutions (using Java for Android, and cocoaasync etc for iOS), but nothing specifically in C++ which has been used for a cross platform app.