csco10716389 Thu, 11/20/2008 - 20:36
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Please describe your requirement in bit detail.I don't understand the motive of doing this.

shivlu jain Tue, 11/25/2008 - 06:42
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i think you want to create in subinterface because you are having one physical interface and want to use two sub interface one for isp and one for lan.

So simpley plug your router interface to switch and isp interface also on switch if you are getting ethernet. Now on run the command

int fa0/0.10

encapsulation dot1q 10

ip address isp ip



int fa0/0.11

encapsulation dot1q 11

ip address lan ip



regards

shivlu jain


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