Why I can't ping from Vlan2? - easy question

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Nov 7th, 2007
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Hi folks, I am just goofing on this. I forgot how to solve this. Please see attached configuration for router and layer 2 switch:

If I setup a workstation1,IP=,MASK=,DEFAULT_GATEWAY= I have connectivity OK, I can ping the router, etc.

Now I want a machine connected to switch- VLAN2 to be able to communicate as well.

Then On port 6, set for VLAN2, I put a machine with IP=,MASK=,DEFAULT GATEWAY= I have no connectivity.

I noticed that the VLAN2 in the switch remains administratively shutdown, even if I do no shut.

What I am missing here? How should I setup my switch and which default gateway information should I use in my client machine on vlan2 to make this intervlan routable?

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szahid Wed, 11/07/2007 - 15:50
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For an L3 SVI to go up , you have to have one port in spanning-tree forwarding state . In this case , it seems like you do not have vlan 2 defined at all. Please go to the global config mode and type this.

vlan 2


show spanning-tree vlan 2

Once you see the port goes into fwd status , the vlan interface should come up at that point


glen.grant Wed, 11/07/2007 - 18:09
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As in your duplicate post if this is a true layer 2 switch like a 2950 or 2960 then you will need a layer 3 device like a router or a layer2/3 switch to route between the vlans . A layer 2 switch address is to manage the switch only so you can only have a single SVI on a switch in the up state.

news2010a Wed, 11/07/2007 - 22:09
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Sorry if I didn't mention this:

the router is doing the routing. if you see the attached configuration, you will see that I defined dot1q for vlan1 and vlan2.


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