#sysctl -a | grep forward
error: permission denied on key 'net.ipv4.route.flush'
net.ipv4.conf.all.forwarding = 0
net.ipv4.conf.all.mc_forwarding = 0
net.ipv4.conf.default.forwarding = 0
net.ipv4.conf.default.mc_forwarding = 0
net.ipv4.conf.lo.forwarding = 0
net.ipv4.conf.lo.mc_forwarding = 0
net.ipv4.conf.eth0.forwarding = 0
net.ipv4.conf.eth0.mc_forwarding = 0
net.ipv4.conf.local.forwarding = 0
net.ipv4.conf.local.mc_forwarding = 0
net.ipv4.conf.inet.forwarding = 0
net.ipv4.conf.inet.mc_forwarding = 0
net.ipv4.ip_forward = 0
net.ipv6.conf.all.forwarding = 0
net.ipv6.conf.all.mc_forwarding = 0
net.ipv6.conf.default.forwarding = 0
net.ipv6.conf.default.mc_forwarding = 0
net.ipv6.conf.lo.forwarding = 0
error: permission denied on key 'net.ipv6.route.flush'
net.ipv6.conf.lo.mc_forwarding = 0
net.ipv6.conf.eth0.forwarding = 0
net.ipv6.conf.eth0.mc_forwarding = 0
net.ipv6.conf.local.forwarding = 0
net.ipv6.conf.local.mc_forwarding = 0
net.ipv6.conf.inet.forwarding = 0
net.ipv6.conf.inet.mc_forwarding = 0