Suppose I have a following simple network architecture :
- WAN1 : 188.8.131.52/24 (GW: 184.108.40.206)
- WAN2 : 220.127.116.11/24 (GW: 18.104.22.168)
- Default Route : 22.214.171.124
In WAN1, all the interface mgmt services are workable, I can connect it from a internet address, I also can ping any internet address by orginating source address from 126.96.36.199.
But all above situations are unworkable in WAN2, even I configure a PBF rule as :
- source zone : WAN2
- source address : 188.8.131.52
- destination address and service : any
- action : forwarding to 184.108.40.206
Why? and how can I resolve it? is there any workaround?
Thanks a lot,
You can follow this DOC for configuration:
The reason this is happening is a routing issue. When coming in from the internet the reply packets will use the default route out of the firewall. In your case this is set to the primary interface. Even if you were to get two default routes active you would not necessarily be able to control which wan interface got the reply packets.
The separation into virtual routers overcomes this problem by giving each wan interface their own routing table and default route. So the reply will return out to the internet on the ingress interface.
For this solution you do need to make sure routing is setup between your two vr as you want to use the services. For this you may want to use policy based routing.
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