I'm trying to create two separate networks spanning two switches using a single connection between the switches (Netgear GS108Ts). It seems like the way to do this is to setup 2 identical VLANs on each switch and use the default switching to ferry communications for both of them between the switches. This has not been quite as simple as I envisioned...
I started by connecting both switches (using port 7 on both), just to verify that the switches were functional (they appear to be).
I then configured both switches as follows:
- Assigned a static IP addresses in one network's subnet (I think this is necessary as I can't find a way to tell the switches which network to get their addresses from)
- Added 2 new VLANS: Internal (VLAN ID 4) and External (VLAN ID 5)
- Set port 1 to "Tagging" for the External VLAN
- Set ports 2-6 to "Tagging" for the Internal VLAN
- Changed ports 7-8 from "Untagging" to "Autodetect" for the Default VLAN
- Set PVID to 5 and "Ingress Filtering" to "Enable" for port 1
- Set PVID to 4 and "Ingress Filtering" to "Enable" for port 2-6
At this point, I have not tested the External VLAN, but devices on the Internal VLAN have lost access to each other (even to other devices on the same switch). I suspect that I've misunderstood either "Tagging/Untagging" or "Ingress Filtering", but I'm not sure which, or what to do about it.
We can assume that none of the devices attached to the switches support VLANs, so the switches need to manage all of the tagging. Also, each of the VLANs will have it's own router, which will provide DHCP.
Any suggestions on how to configure this properly would be appreciated.