iptables loadbalancing question

[faustf]

hi guys i try to do a load balance with 2 wireless lan, this is my scenario:
pc with Linux Mint 18.3 Sylvia 64-bit
Kernel Linux 4.13.0-36-generic x86_64
mate 18

i have first wireless wlp6s0 in 192.168.0.52
and second wireless wlp8s0 in 192.168.1.18

first controll the rule of iptables with this command sudo iptables -L
return this:

Code: Select all

Chain INPUT (policy ACCEPT)
target     prot opt source               destination         

Chain FORWARD (policy ACCEPT)
target     prot opt source               destination         

Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination         

classical vanilla configuration
i try to set by hand
sudo iptables -t mangle -A OUTPUT -j CONNMARK --set-mark 1
sudo iptables -t mangle -A OUTPUT -m statistic --mode nth --every 2 --packet 0 -j RETURN
sudo iptables -t nat -A POSTROUTING -m connmark --mark 1 -j SNAT --to 192.168.0.52

after this i control if the rule is accepted in:
sudo iptables -L
but return always vanilla configuration , and rule do not return error , anyone can help me ???
thankz