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Zyxel USG100. GS1910 Vlans cannot access wan

Iam trying to configure a network that looks like this:

My Vlans and static routing seams to work fine, i am able to ping between the VLANs. My problem is, when i try to make a connection to the internet, I get a time out when trying to ping, i am aware that i need to configure some sort of NAT. But cant quite figure out what goes wrong.

I have tried to create a Policy Route, when i apply the policy but there is a unstable pattern in the replies, got a lot of timeouts, then at ones there is connectivity for a while and then it dies again.

Here are screenshots of my configurations on FW1 and SW1


Network -> Interface -> VLAN
Network -> Interface -> Port Role
Network -> Routing -> Static Route
Network -> Routing -> Policy Route


Configuration -> VLANs -> VLAN Membership
Configuration -> VLANs -> Ports

Any suggestions to what I have to do?
1 Solution
On your vlan port configuration, I don't see a port configured as a trunk. The port connecting up to you FW should be set to tag if it's to be a trunk.

- Why do you have static routes when all of your vlan networks are connected routes already? Did you create the static routes?
- Why do you not have a trunk between the switches for vlan 99 and 300. Currently layer 2 traffic on those vlans would have to go up to your firewall to get to the other switch. Not optimal.
-What are you doing policy routing for?
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