<p></p>
<p>Hello <a class="user-mention" data-hovercard-type="user" data-hovercard-url="/users/henningw/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://github.com/henningw">@henningw</a>,</p>
<p>I checked usage of cscf_get_ue_via function. And I saw ims_ipsec_pcscf, ims_qos, ims_registrar_pcscf module are using this function.</p>
<p>All of them are pcscf modules.</p>
<p>ims_usrloc_pcscf  keeps a hashtable  to keep the pcscf contacts. And hash code is calculated with UE's IP address.  To get UE's IP address we are currently using cscf_get_ue_via function.</p>
<p>In pull request , we will change the cscf_get_ue_via with cscf_get_ue_last_via in  ims_registrar_pcscf_registrar module only. So contact will be saved into hash table with the return value of cscf_get_ue_last_via.</p>
<p>Since we will not change  ims_ipsec_pcscf and ims_qos modules, they will query hash table with the return value of cscf_get_ue_via.  Since these module will not use the same function to get UE's IP adress, they may get a different value and may not reach the contact in the hash table. because calculated hash code will be different.</p>

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