Dear Community

 

I have only basic network knowledge.

I am struggling to implement VLANs between a SG2218 switch and a Cisco RV320 router.

 

Here's my previous configuration :

- 2 floors building : a workshop in the basement and an office in the ground floor

- Network core is located in the basement with the RV320 (no VLAN) and unmanaged switches

- In the basement, I have 3D printers, cameras, Wifi access point.... on unmanaged switches

- In the office, there is a unmanaged switch with desktop, printers...

- 1 ETH cable between the 2 floors

- an internet access, box from an ISP provider connected to the RV320 - WAN1

- a 4G router in backup for dedicated vpn access (Huawei 4G router) connected to the RV320 - WAN2 -> as it's in the basement limited throughput and reception

- a 4G router in backup for ISP (Free 4G router) connected to the ISP box -> as it's in the basement limited throughput and reception

- Load balancing + dedicated rules to route only the dedicated VPN access on WAN2

 

To improve my backup, I need to put the 2 4G routers on the ground floor.

I have replaced the office switch with the SG2218 and I am trying to implement 2 isolated VLAN between the RV320 and SG2218, keeping the default VLAN for the desktop, printers, 3D printers and cameras.

 

On RV320

I have created VLAN 2 for ISP 4G Router (Free) and VLAN 3 for VPN 4G Router (Huawei) as follows.

`No DHCP on the RV320 for these VLANs as the 4G routers provide an IP Adress.

Free 4G router output is on LAN 2 -> connected to the iSP box

Huawei 4G router output is on LAN 3 -> connected to the RV320 - WAN2

"Trunk" ethernet between the 2 floors is on LAN 1 with an unmanaged switch in between for the workshop network

 

 

On the SG2218

"Trunk" ethernet is on port 1

Desktop, printers, ... on ports 2-14

Free 4G router is on port 15

Huawei 4G router is on port 16

 

VLAN1 have the default configuration except port 15-16 Excluded

VLAN2 have Port 1 Tagged, Port 15 Untagged, others Excluded

VLAN3 have Port 1 Tagged, Port 16 Untagged, others Excluded

 

Port 1-14, 17-18 : PVID 1

Port 15 : PVID 2

Port 16 : PVID 3

All ports have ingress checking and Admit all

 

Currently, this configuration is not working.

Is it feasible only with these devices ? And where is the misconfiguration ?

Or should I go for another SG2218 as a core switch and a proper trunk between the two floors ?

Thanks in advance for your help