IP addresses may not be configured on L2 links.

Unanswered Question
Feb 11th, 2008
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Hello to all, 877 have just brought a shindy but I have problems to form the fastethernet, on having tried to form an ip address it(he,she) appears:

IP addresses may not be configured on L2 links.

Since I can solve it? I have tried to use the SDM but it(he,she) does not assign me ip for DHCP. Thank you very much

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Overall Rating: 4 (2 ratings)
andrew.burns Mon, 02/11/2008 - 03:04
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Only the Ethernet WAN interface can have an IP directly assigned. The LAN interfaces need to be assigned to a VLAN, which has the IP address.

Have a look at the following and post again if you still have trouble.


and this link has a complete sample config:




nachogdiaz Mon, 02/11/2008 - 03:11
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Hello Andrew, I continue with the same mistake, not because it(he,she) does not warn me: (

cadrn@tdc.dk Tue, 02/12/2008 - 04:16
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use the interface vlan 1 command:

interface vlan 1

ip address x.x.x.x y.y.y.y

no shut


that shut do it!


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