8/10/2013

CISCO 指令:Fixed IP 及 DHCP 設定方式

  • Fixed IP 設定方式

  • Switch>enable
    Switch#configure terminal
    Enter configuration commands, one per line.  End with CNTL/Z.
    Switch(config)#interface vlan 1
    Switch(config-if)#ip address 192.168.10.1 255.255.255.0
    Switch(config-if)#no shutdown
     
    Switch#
     %LINK-5-CHANGED: Interface Vlan1, changed state to up

    Switch(config-if)#exit

    Switch(config)#ip default-gateway 192.168.10.254
    Switch(config)#exit
    Switch#copy running-config startup-config
    Destination filename [startup-config]?
    Building configuration...
    [OK]


    no shutdown 指令是把interface vlan 1 給予啟動

    下面的指令可以查到目前vlan 1 的IP 資訊

    Switch#show interface vlan 1
    Vlan1 is up, line protocol is down
     Hardware is CPU Interface, address is 0001.6493.19a1 (bia 0001.6493.19a1)
     Internet address is 192.168.10.1/24
     MTU 1500 bytes, BW 100000 Kbit, DLY 1000000 usec,
     reliability 255/255, txload 1/255, rxload 1/255
     Encapsulation ARPA, loopback not set
     ARP type: ARPA, ARP Timeout 04:00:00


  • DHCP 設定方式

  • Switch>enable
    Switch#configure terminal
    Enter configuration commands, one per line.  End with CNTL/Z.
    Switch(config)#interface vlan 1

    Switch(config-if)#ip address dhcp
    Switch(config-if)#no shutdown
    Switch(config-if)#exit
    Switch(config)#exit
    Switch#
    %SYS-5-CONFIG_I: Configured from console by console

    Switch#copy running-config startup-config
    Destination filename [startup-config]?
    Building configuration...
    [OK]
     
     
    使用show dhcp lease 查詢取的ˊIP資訊
    Switch#show dhcp lease
    Temp IP addr: 192.168.9.1 for peer on Interface: Vlan1
    Temp sub net mask: 255.255.255.0
    DHCP Lease server: 192.168.9.2 , state: Bound
    DHCP Transaction id: 6C888578
    Lease: 86400 secs,  Renewal: 43200 secs,  Rebind: 75600 secs
    Temp default-gateway addr: 192.168.9.254
    Next timer fires after: 11:59:58
    Retry count: 0  Client-ID:cisco-0001.6493.19A1-Vlan1
    Hostname: Switch
    若是要更換IP請再interface vlan 1 內輸入shutdown給予disable後,再輸入no shutdown給予enable,這時就會自動向DHCP server要求提供IP。