Hi there,
my client has a basic setup with one local subnet 192.168.3.0/24 on the XG standard physical LAN port 1. Now we are about to introduce new switches and vlans to separate his traffic from his tenants'. The current subnet needs to be preserved because there a lot of machines with static IPs. The tenants' subnets / vlans would look similar to the main one (e.g. 192.168.4.0 with vlan 4 and so on).
So far I came across two options to set this up on the XG:
1. Leave the original subnet as it is and add vlans (= sub-interfaces) to the eth1 interface ( vlan4 = eth1.4, vlan5 = eth1.5 and so on).
That's what I have done with my own network to separate IoT-Devices and a guest network from the business network. This was a smooth transition. When I plugin new devices in a business network switch port though, they receive a 192.168.3.0/24 address via DHCP so I assume that the switch tags the traffic as vlan1 and the XG accepts vlan1 traffic on its eth1 interface. However I could not find a way to tag the original subnet on the eth1 interface with a user-defined vlan e.g. vlan3.
2. Create a new interface, e.g. on physical port 4 with a static "dummy" IP, e.g. 192.168.1.1 and add vlan3 / if4.3 ( with 192.168.3.0/24 as my clients' business network), vlan4 / if4.4 (tenant1), vlan5 / if4.5 (tenant2) and so on. I have not tested this setup yet but I assume it would work.
And maybe there is a third / better way to do this?
Any comment is appreciated!
Kind Regards,
Martin
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