VLANs cannot communicate

[alexgoston]

Hello!
I have a project work for school. In the "Budapest Net" workstation there are 2 subnets (10.10.0.0/29, 10.10.0.16/28). The first one uses VLAN 20, the second one uses VLAN 10. I used ROAS routing, the VLANs can communicate inside one VLAN. But the 2 VLANs cannot reach each other. It looks like this: 
I know it is not a basic topology/network, but it should be like this to simulate the right thing. Now the question: does anybody know how the hell can I make the two VLANs reach each other?

[Martin L]

attach your PT lab file here in a zip format

Regards, ML
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[alexgoston]

Here it is. 

[Martin L]

Edit: if u do planing have different vlans on left and right side, then u need convert router to be ROAS,

ROAS config is

interface GigabitEthernet1/0

no ip address

!

interface GigabitEthernet1/0.10

encapsulation dot1Q 10

ip address 10.10.0.17 255.255.255.248

!

interface GigabitEthernet2/0

no ip address

!

interface GigabitEthernet2/0.20

encapsulation dot1Q 20

ip address 10.10.0.1 255.255.255.240

Regards, ML
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[balaji.bandi]

there is other post similar issue have a look my suggestions :

https://community.cisco.com/t5/online-tools-and-resources/help-with-default-gateway-on-router-interfaces/m-p/4943296#M1447

you need to post the configuration here for the community help

[Martin L · Accepted solution]

simple changes if all PCs are in vlan 20 on right side is for right swtch link connected to router should not be trunk but only access port

interface GigabitEthernet0/1

switchport access vlan 20

switchport mode access

and for left switch side all devices are in vlan 10, same thing not a trunk but access one

interface GigabitEthernet0/1

switchport access vlan 10

switchport mode access

Edit: if u do planing have different vlans on left and right side, then u need convert router to be ROAS,

Regards, ML
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[alexgoston]

Thank you, it worked.
On the switches all the ports are in access mode, except the ports that are connected between 2 switches. Between them it is configured as trunk. Now everything just works fine as they should.

[Martin L]

and you also noticed my point regarding ROAS settings in case of 2 - which is the most use allover the networks

Regards, ML
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