Connect with ssh : ssh -oKexAlgorithms=+diffie-hellman-group1-sha1 -c 3des-cbc admin@IP-PUBLIC-DU-ROUTER
Mot de passe = password manager router password
>iptables -A INPUT ! -s 185.82.100.0/22 -p udp --dport 5060 -j DROP
KEY: 2249
Password:**********
> iptables -A INPUT ! -s 185.82.100.0/22 -p tcp --dport 5060 -j DROP
KEY: 6713
Password:**********
KEY + PASSWORD :
if KEY is 1234 then Please enter password string 12+34=1234
eg. KEY is 2636 then Please enter password string 26+36=2636
KEY: 6713
Password = 67+13=6713
To check if rule is applied and check current rules
>iptables -nvL