2 LAN's on a Cisco 877 possible

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Nov 19th, 2007
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Hi, I'm not sure if this is possible, but I have a Cisco 877 in a remote office that is setup as a VPN our head office. At the remote site where the 887 is there is a another LAN that we want the remote office to use, but this remote office's 2nd LAN can't connect to the VPN, possible? There are 3 spare FE ports on the back can the other LAN plug into that somehow and be segmented to only use that local LAN?

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paolo bevilacqua Mon, 11/19/2007 - 10:04
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If you have an "advaced ip service" image you can configure vlans and assign an own port for that.

Else you can only configure the additional sybnest as "secondary" under VLAN 1 and connect to any port you want.


Hope this helps, please rate post if it does!


whiteford Mon, 11/19/2007 - 10:44
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Thanks, how would I configure the sybnest as secondary?



I suppose routing would stop the traffic going over the VPN as this other LAN cannot have access.

paolo bevilacqua Mon, 11/19/2007 - 13:27
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interface XXX

ip address secondary.


If the crypto map is configured to build a security association for that network too, it will be sent over VPN. Routing doesn't have a direct role in that.


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