https://devzone.nordicsemi.com/f/nordic-q-a/22489/nrf52---extract-correctly-irk-from-connected_evtHello, I&#39;m working with SDK 11 on nRF52832. I want to get the IRK from a connection event. I need to identify the connected device. My following code : static void on_ble_evt(ble_evt_t * p_ble_evt) { uint32_t err_code; switch (p_ble_evten-USTelligent Community 13Fri, 02 Jun 2017 11:44:24 GMThttps://devzone.nordicsemi.com/thread/88487?ContentTypeID=1Fri, 02 Jun 2017 11:44:24 GMT137ad170-7792-4731-bb38-c0d22fbe4515:eb79e26e-0e09-4d06-89e4-d39941fdb820Petter Myhre<p>&amp;compared_data.p_bonding_data-&gt;peer_id.id_info doesn&#39;t make any sense to me.</p> <p>Have you tried pm_peer_data_bonding_load()? It should return the LTK.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/88486?ContentTypeID=1Fri, 02 Jun 2017 10:24:12 GMT137ad170-7792-4731-bb38-c0d22fbe4515:3f3ea286-a0a4-46b9-a546-3a7452a0853bNabil<p>Hello,</p> <p>Thank you for your answer.</p> <p>After bonding where can i read that IRK ? With the same way ?</p> <pre><code>&amp;compared_data.p_bonding_data-&gt;peer_id.id_info ? </code></pre><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/88485?ContentTypeID=1Fri, 02 Jun 2017 10:19:04 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a0397beb-b3fd-44a8-94fe-d9ebe1e3870fPetter Myhre<p>No IRK comes with the connection event.</p> <p>I can&#39;t see that you are setting the IRK anywhere, you are just declaring a pm_peer_data_flash_t struct. The IRK in there is probably just random.</p> <p>If you want to resolve an address with an IRK you first need an IRK. The only way to get the IRK is to bond.</p><div style="clear:both;"></div>