VLANs cant communicate with LAN

FritzS

Hi Community,

I dont have experience about VLANs. I followed the instructions how to set up VLANs. Now my test-VLANs can communicate with each other as I wanted but from and to LAN there is no communication possible. 

I have an XGS1930 (Layer 3). LAN is 192.168.1.0, VLAN10 is 192.168.10.0 and VLAN11 is 192.168.11.0.

Do I have to have a router or is it possible without that everyone can communicate with everyone? I guess that my problem is the missing routes. 

My reason to create VLANs is that I dont have enough IP-addresses in 192.168.1.0 anymore. So I would like to create new subnets for a few departments.

Thank you very much for your help.

Fritz

mMontana

FritzS said:

I have an XGS1930 (Layer 3).
LAN is 192.168.1.0,
VLAN10 is 192.168.10.0
VLAN11 is 192.168.11.0.

Do I have to have a router or is it possible without that everyone can communicate with everyone?

You should have a router for allow inter-LAN/VLAN communication.
Depending on how you configure ports, by a logical point of view, 3 LAN/VLAN = 3 switches.
With a VLAN-Aware router and appropriate configuration you can manage connection between the three VLANs with only 1 port connected, but this solution caps the max throughtput to the one of the port used.
10GBPs if you use SFP+ port
1GBPs if you use 1GbE port.

mMontana

FritzS said:

I have an XGS1930 (Layer 3).
LAN is 192.168.1.0,
VLAN10 is 192.168.10.0
VLAN11 is 192.168.11.0.

Do I have to have a router or is it possible without that everyone can communicate with everyone?

You should have a router for allow inter-LAN/VLAN communication.
Depending on how you configure ports, by a logical point of view, 3 LAN/VLAN = 3 switches.
With a VLAN-Aware router and appropriate configuration you can manage connection between the three VLANs with only 1 port connected, but this solution caps the max throughtput to the one of the port used.
10GBPs if you use SFP+ port
1GBPs if you use 1GbE port.

FritzS

Hi mMontana,

Thank you so much for your help!