跳到主要內容

Cisco Switch 密碼還原

手上的Cisco 2950 Switch設了密碼,猜了半天也進不去,重開後按Ctrl+Break也無反應,還在懷疑是不是線壞掉的時候,Google了一下.....原來Switch密碼還原和Router完全不同

1. 按住Switch上的Mode鍵,並將Switch開機


2.此時Switch會出現以下訊息,紅字為輸入的文字
C2950 Boot Loader (C2950-HBOOT-M) Version 12.1(11r)EA1, RELEASE SOFTWARE (fc1)
Compiled Mon 22-Jul-02 18:57 by antonino
WS-C2950-24 starting...
Base ethernet MAC Address: 00:0a:8a:c0:52:80
Xmodem file system is available.

The system has been interrupted prior to initializing the
flash filesystem.  The following commands will initialize
the flash filesystem, and finish loading the operating
system software:

    flash_init
    load_helper
    boot

switch: flash_init
Initializing Flash...
flashfs[0]: 326 files, 5 directories
flashfs[0]: 0 orphaned files, 0 orphaned directories
flashfs[0]: Total bytes: 7741440
flashfs[0]: Bytes used: 5598208
flashfs[0]: Bytes available: 2143232
flashfs[0]: flashfs fsck took 8 seconds.
...done initializing flash.
Boot Sector Filesystem (bs:) installed, fsid: 3
Parameter Block Filesystem (pb:) installed, fsid: 4
switch: load_helper
switch: rename flash:config.text flash:config.old
switch: boot



詳細方法可以參考官方網站

留言

這個網誌中的熱門文章

2台 Vigor 2920建立 LAN To LAN VPN (IPsec)

我有兩台Vigor 2920,環境如下: Vigor B 撥出 LAN:192.168.1.0/24 Vigor A 撥入 LAN:172.16.1.0/24 設定如下: Vigor B設定 Vigor A設定 詳細設定請參考官網 http://www.draytek.com/index.php?option=com_k2&view=item&id=2666&Itemid=264&lang=tw

使用Cisco L3 Switch做VLAN的Routing

目標: 讓VLAN100與VLAN200的電腦透過L3 Swtich做VLAN的Routing,並且可以互相存取資源與上網,另外再使用Windows Server 2012配發VLAN100,VLAN200的IP Firewall: 使用ASUS AP當Firewall,並設兩條Static Route Switch: Core Switch為Cisco 3750切VLAN 10,VLAN100,VLAN200,VLAN10為預設的VLAN,VLAN100為Sales,VLAN200為RD Edge Switch為Cisco 3750與2950,其中2950為VLAN100,3750為VLAN200,如果要By Port切VLAN也可以,這裡只是為了方便說明,所以Edge Switch都直接設為單一VLAN Core Switch的設定 原本我只想Show Running-config其中比較重要的設定,後來想想還是全部列出,用紅色標記重要的設定 Gi 1/0/1接2950 Gi 1/0/2接3750 Gi 1/0/24接Router Core-3750#show running-config Building configuration... Current configuration : 2436 bytes ! version 12.2 no service pad service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname Core-3750 ! boot-start-marker boot-end-marker ! ! ! ! no aaa new-model switch 1 provision ws-c3750g-24t system mtu routing 1546 ip routing no ip domain-lookup ! ! ! ! ! ! ! ! spanning-tree mode pvst spanning-tree portfas...

HP A5120 Switch 基本設定

沒用過HP的Switch,指令跟Cisco完全不同,花了一些時間熟悉~ 1.啟動Spanning-Tree,預設沒有開啟 (黑色粗體是我敲的指令) <HP> system-view System View: return to User View with Ctrl+Z. [HP] stp enable [HP] %Apr 26 12:03:59:826 2000 HP MSTP/6/MSTP_ENABLE: STP is now enabled on the device. %Apr 26 12:03:59:918 2000 HP MSTP/6/MSTP_FORWARDING: Instance 0's GigabitEthernet1/0/17 has been set to forwarding state. %Apr 26 12:04:00:068 2000 HP MSTP/6/MSTP_DETECTED_TC: Instance 0's GigabitEthernet1/0/17 detected a topology change. #Apr 26 12:04:00:208 2000 HP MSTP/1/PFWD: hwPortMstiStateForwarding: Instance 0's Port 0.9437200 has been set to forwarding state! 2.DHCP Snooping   (黑色粗體是我敲的指令) 假設我的DHCP Server接在24 Port,其他Port不允許有DHCP Server <HP> system-view System View: return to User View with Ctrl+Z. [HP] dhcp-snooping  DHCP Snooping is enabled. [HP] interface GigabitEthernet 1/0/24 [HP-GigabitEthernet1/0/24 ]dhcp-snooping trust 若是沒有Port 設成dhcp-snooping trust,那麼這台Switch就沒有Client可以從DHCP Serv...