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1/ define vmbr1 in proxmox interface :
192.168.0.254 255.255.255.0
2/ execute in host :
Get access to the outside
iptables -t nat -A POSTROUTING -s 192.168.0.0/24 -o vmbr0 -j SNAT --to xxx.xxx.xxx.xxx
get access from the outside
iptables -t nat -A PREROUTING -p tcp -d xxx.xxx.xxx.xxx --dport xxx -i vmbr0 -j DNAT --to-destination 192.168.0.1:xxx
or
iptables -t nat -A PREROUTING -p tcp -d xxx.xxx.xxx.xxx --dport 10000:10100 -i vmbr0 -j DNAT --to-destination 192.168.0.1 iptables -t nat -A PREROUTING -p udp -d xxx.xxx.xxx.xxx --dport 10000:10100 -i vmbr0 -j DNAT --to-destination 192.168.0.1
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