L3 switch Vlans communications.

[lucruri.diverse]

Hi. I have an issue with a L3 switch. I have recently bought a Dlink switch DSG-1500-20 Pro. I am wondering how could i configure the communication between two vlans on this switch since this is a L3 switch. As i know a L3 switch should allow communication between two vlans. I could not figure it out on this one. Could someone help me please? Let me know if you need any ingo. Thank you!

[lucruri.diverse]

The scenario i am working on is like this. I have a VmWare host and i have assigned a Nic for VM traffic. On this Nic i have defined a vSwitch which contains seeral VM Port Groups, each group with its own vlan. Lets say that i have two vlans. I want to allow these computers to communicate with eachother at the L3 switch level since they are from differen domains, with different ip netwrok addresses. Thank you!

[GroundZero3]

When you talk about Vmware, im assuming you are talking about ESX/ESXi/vSphere correct?

Can you post what your port configuration look like? Have you testing L3 routing between the two vlans without vmware? If so do they communicate?

This can either be a misconfiguration of the switch ports and the switch

or

Misconfiguration of Vmware and its networking capabilities.

[lucruri.diverse]

Hi. Yes i am talking about vSphere, sorry. No i did not test it without vmware. The configuration on the ports i good. One Nic is for management, one nic is for iScsi traffic (i have separate network for this - hardware speaking) and one nic is for the vms traffic. The management nic and the one for the vms traffic are connected to the same switch - the one i am talking about in this post. My dilema is where on the switch i should configure the communication between the vlans. I suppose it should be something in the L3 section. I will post the configuration of the switch later today. Thank you!

[GroundZero3]

Do you mean you have the DLINK DGS-1500-20 pro

I love it when companies make it really hard to find the manual for their network hardware, I searched around on the Dlink website and for some reason I couldnt find it.

I did however find this:
Index of ftp://ftp.dlink.es/DGS/DGS-1500_Series/Manual

But it makes no mention of layer 3 routing, I dont have any experience on configuring Dlink switches but im sure you can see the routing table. Do you see both subnets? A simple test would be to have one machine in one vlan with a static ip address with its subnet and another machine in the second VLAN with a static address for that subnet and just do a simple ping test to see if you get a response. If you do then maybe L3 routing is enabled by default (which might be the case when you created the second vlan and added the different subnet) If you do get a response then we are fine with the vlans talking, the next step would be to check the port configuration and then lastly check the vSphere vswitch configuration

[lucruri.diverse]

Thank you GroundZero3. I have uploaded some pictures with the menu of this switch. Also with the defined Vlans and with the L3 functions. As i know if I want to define intercommunication between different vlans i should create a interface and assign an ip which will be used as gateway by all the vms which will reside in that specific vlan. Well, i have tried, see the pictures, but i had no luck. Could you have a look at the menu of this switch and let me know what do think about it? Thank you!

[lucruri.diverse]

Hi. Could you have a look at the menu of that switch when you have time? I have managed to do the routing at the firewall level, but not yet at the switch level. Thank you!

[GroundZero3]

That manual I posted is the only thing I could find.

As I said I have no real experience configuring those types of switches, have you tried the test I suggested by putting two different machines in two different VLANS and seeing if they can communicate? That will instantly tell you if L3 routing is enabled or not. Shouldnt take more than 5 minutes to test

[lucruri.diverse]

No, no. Just wanted your opinion about the pictures. If you look at them, it should support L3 right?