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Solved
GS305E - Communicating between subnets
I was looking to buy the GS305E switch and was wondering if it would work for my needs. How I would have the switch set up is my router from my ISP (either in router or modem mode) would plug into o...
Afraid, no Smart Managed Plus switch does support inter-VLAN routing.
The problem for your (and many other users looking into similar solutions) use case is that there is more required than pure routing - that's what some L2+/L3 switches or routers/SOHO/SMB security appliances would support (but e.g. not your ISP router) - the problem is that printers, media players, ... and the like use standard discovery protocols, for example Bonjour/mDNS or UPnP SSDP, other IoT or network devices use proprietary stuff often based on IP Broadcast. And these are designed to work on a single broadcast domain only - a single flat LAN/VLAN and IP subnet.
Adding a classic router or security appliance does still require a static route from the default gateway (that's the ISP router) on the LAN interface to another subnet pointing to the router interface on that same LAN subnet. Otherwise you would have to deploy static routes on all systems on the primary LAN - what is in between unhandy to impossible.
All these are often the killer for well intended security design...
Afraid, no Smart Managed Plus switch does support inter-VLAN routing.
The problem for your (and many other users looking into similar solutions) use case is that there is more required than pure routing - that's what some L2+/L3 switches or routers/SOHO/SMB security appliances would support (but e.g. not your ISP router) - the problem is that printers, media players, ... and the like use standard discovery protocols, for example Bonjour/mDNS or UPnP SSDP, other IoT or network devices use proprietary stuff often based on IP Broadcast. And these are designed to work on a single broadcast domain only - a single flat LAN/VLAN and IP subnet.
Adding a classic router or security appliance does still require a static route from the default gateway (that's the ISP router) on the LAN interface to another subnet pointing to the router interface on that same LAN subnet. Otherwise you would have to deploy static routes on all systems on the primary LAN - what is in between unhandy to impossible.
All these are often the killer for well intended security design...
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