From a host connected on GE1 (vlan 10) I can ping: - 10.0.10.1 (gateway of that vlan) - 192.168.178.2 (interface GE9, connected with my internet access router) - 192.168.178.1 (my internet access router) - my external WAN address
But I can't ping 22.214.171.124 (a google dns server). There is no internet connection. A traceroute does not beyond 10.0.10.1
Pinging 126.96.36.199 from the command line on the SG300 is no problem. From another host connected on the EPC3928 a ping to 188.8.131.52 is no problem.
I have tried it with firmware 184.108.40.206 and 220.127.116.11 What is the problem here?
Does your Cisco EPC3928 able to be configured for both Vlans on port 1? Do apologies the Cisco EPC3928 is not a Small business product so this is why i ask this question. Call ISP for any questions regarding this device. It would have to be aware of Vlan 10 to get traffic back to the switch. To get traffic on Vlan 10 to out to internet switch would have a default route of 0.0.0.0 point to DG of Cisco EPC3928 192.168.178.1. Hope this helps you!
I cannot configure vlans or add routes on my Cisco EPC 3928. Its a very closes ISP box. I guess that it is a non vlan aware router. It is only my gateway to the internet.
I do not need to route traffic from the outside/internet to my network. I only need internet access on my office. Split my nat 192.168.178.0/24 in 3 vlans for office, voice, and guest-wifi, etc. And route non local trafic to my gateway 192.168.178.1.
I was on the assumption that I could realize that with a layer 3 switch like a SG300.
this can be done with layer 3 switch but more advanced firewalls might not allow it without additional configuration. since you have no access to the EPC 3928 we can only assume that this is the cause.
What you could do however is to make layer 2 isolation while keeping layer 3 subnet.
port 1 - mode general 10UP, 2U - one network
port 2 - mode general 20UP,2U - second network
port 3 - mode general 2UP, 10U, 20U - uplink port
How this works:
1. host on port 1 when initiate traffic will send this to all ports in VLAN 10 (PVID) so it will also reach uplink port
2. when traffic returns on uplink port it will be in VLAN 2 (PVID on port 3) so it would also reach port 1 since it is a member of VLAN 2 as well
3. you can share the same subnet 192.168.178.0/24 between hosts on vlan 10 and 20 thus no access to EPC is needed
4. you would not have switch management access if not directly connected to the unit
I works very well but how it would address your issue,
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