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Trunking is not working
http://forum.gns3.net/topic11040.html
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Author:  GNS38482 [ Thu Jul 17, 2014 4:44 pm ]
Post subject:  Trunking is not working

I configured trunk on switch l2 sitting between two routers- created vlan and allowed on trunks- for some reason I am unable to router interfaces- if I changed to access port it works..

using 15.0

Author:  aa052 [ Thu Jul 24, 2014 1:40 am ]
Post subject:  Re: Trunking is not working

If i understand correctly, your topology simply looks like this:

R1 <---> SW <--> R2

You changed the links between the routers and the switch to trunks. If you do this, it is my understanding you would have to use subinterfaces on the router interfaces, telling each subinterface which vlan it should listen to.

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