VLAN Traffic in MT with L3 Cisco Switch

RouterOS Beginner Basics
1

Hi everyone,

Problem: I cannot find the traffic in all different VLANs.
Scenario:
MT Router: 750
Cisco Switch: L3 - 3560
DHCP/DNS Server - separate Microsoft 2003

I have configured all the vlans (2,3 and 4) in cisco switch. I have chosen 2 as a management vlan.
(vlan 2 - 10.10.11.2/30
vlan 3 - 192.168.100.1/24
vlan 4 - 192.168.101.1/24)
After intervlan routing all the vlans are communicating eachother.
The port that is connected to Cisco switch it is configured as trunk (fa0/24).
I have created all those vlans (2,3 and 4) in MT Router as well under ethernet port 2.
I have created ethernet port1 as WAN port.
Under vlan 2 (inside ethernet 2) MT Router i have assigned the same range ip address to communicate with cisco switch. (vlan 2 - 10.10.11.2/30)
I have done Natting and static route in MT Router.

From the computer with vlan 3 and 4, they can access to the internet.

Now i am trying to capture vlan 3 and vlan 4 traffic in MT Router.

All i can capture is vlan 2 since it is being act as management vlan. Meaning all the traffic is being shown under vlan 2(inside ethernet port 2).

I am sure i am missing some steps which is unable to capture the vlan traffic separately.

I want to see traffic in vlan 2 and vlan 3 separately.

Any suggestions.

Many thanks in advance.

Nepa

2

What do you mean by “capture vlan 3 and vlan 4”? Do you mean you want to do all the routing on the Microtik router rather than inter-VLAN routing on the Cisco switch?

If so:

####  Make VLANs 2-4 valid on interface ether2, and tag packets as they exit the interface.

/interface vlan
add name=VLAN2 vlan-id=2 interface=ether2-master-local disabled=no
add name=VLAN3 vlan-id=3 interface=ether2-master-local disabled=no
add name=VLAN4 vlan-id=4 interface=ether2-master-local disabled=no

/ip address 
add address=10.10.11.1/30 interface=VLAN2
add address=192.168.100.1/24 interface=VLAN3
add address=192.168.101.1/24 interface=VLAN4

On the Cisco switch you will need to configure fa0/24 to carry VLANs 2,3 and 4 all as tagged VLANs. I believe the command is “switchport mode trunk” but you also need to say which VLANs are valid on that interface.

If you want to have one of the VLANs on ether 2 not tagged, I think the correct way to do this is add the IP address not to the VLAN interface but to the ethernet interface directly.