-gateway on the different VLANs is the respective adress of the SG-300 (192.168.X.254)
-added route: dest:0.0.0.0/0, next hop: 192.168.1.1, type: remote, metric: 1
From every VLAN I can ping the modem (192.168.1.1) and other clients but I can only access the internet from VLAN1 (or whicheever VLAN the modem is hooked up to).
I have the following assumption what could be the problem:
Example: I want to access the internet from VLAN2 with a computer having the IP-adress 192.168.2.10. The computer knows that the package-destination is not of its own subnet and sends it to the gateway-adress 192.168.2.254 (SG300 Switch). The SG300 then forwards the package to the modem according to the routing entry. The modem sends it to the internet using NAT.
So far so good.
When the answer comes back from the internet the modem uses NAT again an puts in the destination address 192.168.2.10 (from which the request origianlly came from). Now my assumtion is that since the address is not of the subnet of the modem it does not know what to do with it an discards the package instead of fowarding it to the SG300 on 192.168.1.254.
I didn't find any menu entry to set up routes on the EPC3208G modem, only portfowarding is possible
Is my assumption right?
Any ideas if there is a possibility to realize my plans with the given hardware?
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