Cisco無線LAP1142升級

1.升級LAP1142的前期準備：

由于LAP1142無法獲取到IP地址，將console線接到AP上，并且報告錯誤，日志如下 ：

*Mar 1 00:00:44.491: %CDP_PD-2-POWER_LOW: All radios disabled - NEGOTIATEDWS-C2960S-48LPS-L (34bd.c8bc.5401)

*Mar 1 00:00:50.422: %CAPWAP-3-ERRORLOG: Not sending discovery request APdoes not have an Ip !!

*Mar 1 00:01:00.422: %CAPWAP-3-ERRORLOG: Not sending discovery request APdoes not have an Ip !!

2. 確定AP自身有問題，而非網絡原因無法獲得地址

2.1具體做法如下：

先找到AP的網關和vlan，在AP所連接的上游交換機一路尋找，查看DHCP配置是否正確（網關，地址范圍，vlan和option 43）等信息

2.2確定網絡配置無誤，將一臺PC放到AP所在VLAN，能正確獲得對應AP所在VLAN的IP地址

3. 1 LAP的鏡像文件：

  可從官方找到最新或近期的版本，注意是輕型AP的系統鏡像，最好是查找官方關于AP和WLC的系統版本對照表，以保證兼容性

http://software.cisco.com/download/release.html?mdfid=282439881&flowid=6789&softwareid=280775090&release=15.2.2-JB&relind=AVAILABLE&rellifecycle=ED&reltype=latest

3.2.準備好操作文檔，由于此處是本地升級，需要配置PC的IP地址，來傳輸AP的鏡像文件。

3.3 升級開始，AP恢復模式下的IP地址為10.0.0.1/8,本地IP為10.0.0.2/8。

放在一個地址段或一個vlan即可，并關閉本地計算機計算機防火墻。

  開啟在PC上開啟tftp服務器，并將鏡像文件放入TFTP指定目錄

這里選擇的是c1140-k9w8-tar.124-23c.JA4.tar：

 c1140-k9w8-tar.124-23c.JA4.tar ----> c1140-k9w8-tar.default

重啟AP，并按住mode鍵 ：

Base ethernet MACAddress: 00:1d:a1:ff:3c:dc
Initializing ethernet port 0...
Reset ethernet port 0...
Reset done!
ethernet link up, 100 mbps, full-duplex
Ethernet port 0 initialized: link is up
button is pressed, waitfor button to be released...  （可以松開mode鍵）

button pressed for 29 seconds
process_config_recovery: set IP address and config to default 10.0.0.1
process_config_recovery: p_w_picpath recovery
p_w_picpath_recovery: Download default IOS tar p_w_picpath tftp://255.255.255.255/c1240-k9w7-tar.default（根據實際情況修改）

剩下的過程就是AP重新安裝系統的過程 。

升級成功結果 ：

AP正常獲得地址：

*Mar 1 00:00:12.310: %SNMP-5-COLDSTART: SNMP agent on host AP6c20.569a.6e98is undergoing a cold start

*Mar 1 00:12:39.044: %CAPWAP-5-CHANGED: CAPWAP changed state to DISCOVERY

*Mar 1 00:12:39.111: %LINK-5-CHANGED: Interface Dot11Radio1, changed state toreset

*Mar 1 00:12:39.112: %LINK-5-CHANGED: Interface Dot11Radio0, changed state toreset

*Mar 1 00:12:40.298: %SSH-5-ENABLED: SSH 2.0 has been enabled

*Mar 1 00:12:40.298: %LINEPROTO-5-UPDOWN: Line protocol on InterfaceDot11Radio1, changed state to down

*Mar 1 00:12:40.298: %LINEPROTO-5-UPDOWN: Line protocol on InterfaceDot11Radio0, changed state to down

*Mar 1 00:12:49.108: %DHCP-6-ADDRESS_ASSIGN: Interface GigabitEthernet0assigned DHCP address 10.157..200, mask 255.255.255.128, hostnameAP6c20.569a.6e98

AP成功發現控制器：

*Mar 1 00:13:02.501: %CDP_PD-4-POWER_OK: Full power - NEGOTIATED inline powersource

*Mar 1 00:13:02.523: %LINK-3-UPDOWN: Interface Dot11Radio1, changed state toup

*Mar 1 00:13:02.548: %LINK-3-UPDOWN: Interface Dot11Radio0, changed state toup

*Mar 1 00:13:03.508: %LINEPROTO-5-UPDOWN: Line protocol on InterfaceDot11Radio1, changed state to up

*Mar 1 00:13:03.509: %SYS-6-LOGGINGHOST_STARTSTOP: Logging to host255.255.255.255 started - CLI initiated

*Mar 1 00:13:03.534: %LINEPROTO-5-UPDOWN: Line protocol on InterfaceDot11Radio0, changed state to up

Translating"CISCO-CAPWAP-CONTROLLER"...domain server (255.255.255.255)

*Mar 1 00:13:08.897: %CAPWAP-5-DHCP_OPTION_43: Controller address10.157..123 obtained through DHCP

AP升級成功