Capture VoIP traffic through IPsec VPN

asked 2020-03-02 05:15:01 +0000

zamar24 gravatar image

updated 2020-03-02 05:16:40 +0000

I'm trying to capture WiFi VoIP calls from Freephoneline phone app via IPsec virtual adapter on a Win 10 PC with latest NPCAP installed and Wireshark 3.2.1 . I can capture these calls on the WiFi adapter ESP encrypted, but when trying to capture them on the virtual IPsec adapter, Freephoneline app traffic gets blocked so its impossible to place a call with it. Why this happens, and is it possible to overcome? Also, is there a way to decrypt captured ESP traffic?

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