Configuration for iptables

iptables -t nat -A PREROUTING -p tcp -m multiport --dports 8060,8070 -j DNAT --to-destination ROUTER_AND_RELAY_IP
iptables -t nat -A POSTROUTING  -s LOCAL_NETWORK -d ROUTER_AND_RELAY_IP -p tcp -m multiport --dports 8060,8070 -j SNAT --to-source EXTERNAL_IP

Replace the following with your data:

ROUTER_AND_RELAY_IP - IP address of the computer on which the Router/Relay is installed.

LOCAL_NETWORK – your local network (for example 192.168.1.0/24).

EXTERNAL_IP - your external IP address