I have a customer who has an existing 877W on his network. He wants to add an access point in another area that is not covered by the ISR's wireless capability. Can the access point be plugged into the ISR and connect into the existing vlan's/ssid's or is it not possible because there are no layer 3 ports? He has the same scenario at another site but here he is using an 1801W. Any advice or links to configs etc much appreciated.