2 years of trying to find solution but no one know how ( about ipsec vpn l2tp)

Hi, i have galaxy s7 edge rooted and iphone 6s jaillbreaked
First it's very easy to prohibit ipsec from l2tp protocol on iphone vpn
plugin L2TP.ppp" > options
l2tpnoipsec >> options
save options /etc/ppp/
and ipsec will be desabled !

My question is how i must do on android ?
like this but with android ? i wan't prohibit ipsec but i can't found any solution on net , please help
Millions of thank's ^^

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