Cisco 819 ISR router - Embedded wireless AP configuration

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Access point overview

The Cisco 819 ISR supports built-in enterprise class WLAN capability with an embedded Cisco 3500 Access Point featuring 802.11a/b/g/n and 2X3 MIMO antenna diversity (2 transmitting antennas and 3 receiving antennas).  With the dual 802.11 radio capability, the integrated AP can serve both as an access point and as a client to another wireless network for backbone/internet connectivity. This provides another source for WAN diversity along with Gigabit Ethernet, serial, and 3G/4G capabilities.

The Cisco 819 ISR router wireless access-point is a service module connected to the router with the following interfaces :

  • wlan-ap0 for access point management
  • Wlan-GigabitEthernet0 for production traffic between the router and the AP. This interface can be configured as a trunk to allow the AP to link multiple SSID to different vlans


Router#show ip interface brief 
Interface              IP-Address      OK? Method Status                Protocol
GigabitEthernet0       unassigned      YES NVRAM  administratively down down
FastEthernet0          unassigned      YES unset  up                    down
FastEthernet1          unassigned      YES unset  up                    down
FastEthernet2          unassigned      YES unset  up                    down
FastEthernet3          unassigned      YES unset  up                    down
Serial0                unassigned      YES NVRAM  administratively down down
Wlan-GigabitEthernet0  unassigned      YES unset  up                    up
wlan-ap0           YES TFTP   up                    up
Cellular0              unassigned      YES unset  administratively down down
Vlan1              YES NVRAM  up                    up


IOS version of the embedded access-point :

Cisco IOS Software, AP802 Software (AP802-K9W7-M), Version 12.4(25d)JAX1, RELEASE SOFTWARE (fc4)
Technical Support:
Copyright (c) 1986-2012 by Cisco Systems, Inc.
Compiled Fri 03-Aug-12 10:01 by mnguyen

ROM: Bootstrap program is AP802 boot loader
BOOTLDR: AP802 Boot Loader (AP802-BOOT-M) Version 12.4(25e)JA1, RELEASE SOFTWARE (fc1)

ap uptime is 25 minutes
System returned to ROM by power-on
System image file is "flash:/ap802-k9w7-mx.124-25d.JAX1/ap802-k9w7-mx.124-25d.JAX1"

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cisco 802      (revision A0) with 98304K/32768K bytes of memory.
Processor board ID FTX181982RM
Last reset from power-on
1 Gigabit Ethernet interface
2 802.11 Radio(s)

32K bytes of flash-simulated non-volatile configuration memory.
Base ethernet MAC Address: 00:03:E4:08:49:01
Part Number                          : 74-10407-01
PCA Assembly Number                  : 800-00000-00
PCA Revision Number                  : 00
PCB Serial Number                    : FOC18115P09
Top Assembly Part Number             : 800-37061-02
Top Assembly Serial Number           : FTX1819X7F1
Top Revision Number                  : D0
Product/Model Number                 : 802

Configuration register is 0xF


Access Point connection

The Cisco 819 embedded access point is not configured through the router's running-config. After setting up an IP address to the wlan-ap0 router interface, connect to the access point using the following command in privileged mode :

Router# service-module wlan-ap0 session

Detailled configuration :

Router(config)# interface wlan-ap0
Router(config-if)# ip address
Router(config-if)# no shut
Router(config-if)# exit

Router# service-module wlan-ap0 session
Trying, 2002 ... Open



Guest SSID configuration

The following configuration steps are required to configure a working guest SSID

  • Define the SSID name (dot11 ssid SSID_NAME)
  • Configure the SSID in guest mode (guest-mode)
  • Configure the SSID authentication method (auhentication open / open eap / network-eap )
  • Link the configured ssid to a Dot11Radio interface


dot11 ssid GUEST_SSID
authentication open
authentication key-management wpa
wpa-psk ascii 0 12345678
interface Dot11Radio0
no ip address
encryption mode ciphers aes-ccm


Main SSID configuration

Coming soon