Inter VLAN/Subnet routing on Switch instead of Router. How to configure it via Omada Controller?

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Inter VLAN/Subnet routing on Switch instead of Router. How to configure it via Omada Controller?
Inter VLAN/Subnet routing on Switch instead of Router. How to configure it via Omada Controller?
2022-02-02 09:54:03
Model: OC200
Hardware Version: V1
Firmware Version:

Hi,

 

I have ISP -> Router -> Switch1 -> Switch2.

 

I have NAS in VLAN 10 (192.168.10/24) connected to Switch 1.
I have a PC in VLAN 20 (192.168.20/24) connected to Switch 2.

 

Router: ER7206
Switch 1: TL-SG2210P
Switch 2: TL-SG3210

All managed via OC200.

 

As of now have those VLAN/Subnets configured via Settings->Wired Networks -> LAN.

 

First:

Purpose: Interface

VLAN: 10

Gateway/Subnet: 192.168.10.1/24

DHCP: Enabled: 192.168.10.100-199
Default Gateway: Auto

 

Second:

Purpose: Interface

VLAN: 20

Gateway/Subnet: 192.168.20.1/24

DHCP: Enabled: 192.168.20.100-199
Default Gateway: Auto

 

When I disconnect Router from Switch 1 while pinging from PC to NAS I get an error. This makes sense, as the router is set as default gateway for out of subnet traffic.

 

Question:

How to set it up so that Switch 1 will work as a gateway for VLAN 10 and 20 so that all traffic between those goes via Switch 1 and not via Router?

 

My own investigation:

This below might be total gibberish on a technical level but this is my thinking. Please correct me if I said something wrong. I want to learn.

I know that I need Switch 1 to be visible to downstream clients as a gateway (now it doesn't have IP address other than management one on management vlan).

Additionally, I know that DHCP needs to advertise Switch 1 as the default gateway.

But I don't know how/where to set it.

 

I found "VLAN/Subnets configured via Settings->Wired Networks -> LAN -> First -> Manaul Gateway" option but don't know what it does.

 

I also found "Switch Settings -> Edit Port Profile -> Config -> VLAN Inteface" for both switches. There I can setup separate DHCP etc. 

I can see that I can set DHCP or Static IP for Switch (?) here. I can also set DHCP mode to None/DHCP Server/Relay. My guess is if I want Router to give out addresses then I need to set it to None or Relay. If I set it to none will will the Router give out IP to client? If yes, then what does Relay option really do? Please guide me in the right direction.


 

 

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Re:Inter VLAN/Subnet routing on Switch instead of Router. How to configure it via Omada Controller?
2022-02-03 08:23:36

@hoi I think their official website has two articles that can give you some ideas.

https://www.tp-link.com/en/support/faq/3155/

https://www.tp-link.com/en/support/faq/887/

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Re:Inter VLAN/Subnet routing on Switch instead of Router. How to configure it via Omada Controller?
2022-02-03 09:16:24

@Yannie 
The first link is about using the Router as a DHCP server. But it still uses Router as a gateway. Additionally, I would like to keep the Router as the only DHCP server in the system. I don't want to have multiple.

 

The second link is much more informative. For example, how to set up this Transmission->NAT on the Router via Omada. But I'm not sure how to translate this configuration to the Omada controller.

 

Side question. If I would run DHCP on the switch, I don't see an option to set DHCP range to something different than x.x.x.0-254. I can't find the option to set it to 100-199.

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