Pour éviter l'erreur ICMPv6: RA: ndisc_router_discovery failed to add default route
Correction, désactiver l’annonce des routes (accept_ra) :

nano /etc/sysctl.conf

# Uncomment the next line to enable packet forwarding for IPv6
#  Enabling this option disables Stateless Address Autoconfiguration
#  based on Router Advertisements for this host
net.ipv6.conf.all.forwarding=1

# Accept Router Advertisements
net.ipv6.conf.all.accept_ra=0

Activer net.ipv6.conf.all.forwarding=1 et ajouter net.ipv6.conf.all.accept_ra=0
Puis sysctl -p pour une validation immédiate

dd if=/dev/zero of=test bs=100M count=1
scp -P 55036 -i /home/admin/.ssh/OVZ-STORAGE-128 test usernl@5.2.79.127:/dev/null
scp -P 55051 -i /home/admin/.ssh/hms-sto-250 test userhms@45.145.166.51:/dev/null

nmap -p 20-200 192.168.1.2

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