i installed a CHR on virtualbox, send all traffic with an l2tp vpn on my windows to this CHR. (windows -> l2tp -> CHR). i enable NAT on CHR and get 192.168.1.38/24 also add a firewall with masq to have internet on my windows.
now i have a MT SERVER which has an Static IP and its located in another country, what i want is to tunnel from CHR to this SERVER, the problem is most of the VPN protocols are stop working on my country (l2tp, sstp, wireguard, ovpn, pptp...) i have to connect with GRE or IPIP, but i dont know how to configure the ip on CHR to establish the connection.
also when i want to use ip cloud for DDNS i got this error : Cloud services not supported on x86
PC -> L2TP -> CHR(192.168.1.38) -> public ip (188.8.131.52) -> INTERNET <- (184.108.40.206)SERVER
on my CHR i can ping SERVER's ip but from SERVER i cant ping CHR's ip (for GRE and IPIP connection its necessary that both of them can ping eachothers yes ? )
how can i make this happen ? thanks for your help