Strange different IPs in wp_statistics_hit_rest call

Hello,

I find in my Accesslog following line :
176.190.199.238 - - [09/Dec/2021:20:53:32 +0100] "GET /wp-json/wp-statistics/v2/hit?_=1639078160&_wpnonce=63f693a8d9&wp_statistics_hit_rest=yes&browser=Safari&platform=iOS&version=14.4.2&referred=https://expertimmodelarc.com&ip=88.122.155.198&exclusion_match=no&exclusion_reason&ua=Mozilla/5.0%20(iPhone;%20CPU%20iPhone%20OS%2014_4_2%20like%20Mac%20OS%20X)%20AppleWebKit/605.1.15%20(KHTML,%20like%20Gecko)%20Version/14.0.3%20Mobile/15E148%20Safari/604.1&track_all=1&timestamp=1639081760&current_page_type=home&current_page_id=27&search_query&page_uri=/&user_id=0 HTTP/2.0" 200 0 "https://expertimmodelarc.com/" "Mozilla/5.0 (iPhone; CPU iPhone OS 14_7_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/14.1.2 Mobile/15E148 Safari/604.1"

Where Apache IP is 176.190.199.238
And wp_statistics reported ip is 88.122.155.198

Why such difference ?

Regards

JP FOL