@Clive_A Thank you for your response. I have 3 wan lines and one phone center. I have to register the phone center with these 3 wan lines. Inside the menu of phone center i have to setup for every registration (username and password) the gateway that it has to use for the registration process. I put the gateway of omada router for every registration proccess. The problem that i have is, how to setup inside router (ER605) to send traffic from phone center to each wan for the registration proccess. I can write the example with IP's:
The vpn router (ER605) has IP 192.168.100.1
The phone center has IP 192.168.100.210
I setup the NAT configuration 192.168.100.210 ---> 192.168.2.20 for WAN
192.168.100.210 --->192.168.4.20 for WAN/LAN1
192.168.100.210 --->192.168.3.20 for WAN/LAN2
Inside phone center i have this setup:
Gateway for Line1: 192.168.100.1
Gateway for Line2: 192.168.100.1
Gateway for Line3: 192.168.100.1
Sometimes the registration process inside phone center it works but sometimes, for example, Line1 registration has failed because the traffic doesnt go through the right WAN, is not stable. But phone center has this to work stable because if it goes from wrong WAN the registration will failed.
