For versions >= 1.6.0 of the library only
The ROHC sniffer is a lightweight application for testing the robustness of the ROHC library. The sniffer passively captures all the traffic on a network interface, compresses it, decompresses it, then compares it with the original traffic. If any of the previous steps fails, the sniffer stops and reports the problem.
In some aspect, the ROHC sniffer replaces the ROHC over UDP tunnel because it allows testing the library with real traffic without any impact on the network or on other applications: