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Router#show ? aaa Show AAA values access-lists List access lists arp Arp table cdp CDP information class-map Show QoS Class Map clock Display the system clock controllers Interface controllers status crypto Encryption module debugging State of each debugging option dhcp Dynamic Host Configuration Protocol status dot11 IEEE 802.11 show information ephone Show all or one ephone status file Show filesystem information flash: display information about flash: file system frame-relay Frame-Relay information history Display the session command history hosts IP domain-name, lookup style, nameservers, and host table interfaces Interface status and configuration ip IP information ipv6 IPv6 information logging Show the contents of logging buffers login Display Secure Login Configurations and State mac-address-table MAC forwarding table ntp Network time protocol parser Show parser commands policy-map Show QoS Policy Map privilege Show current privilege level processes Active process statistics protocols Active network routing protocols queue Show queue contents queueing Show queueing configuration running-config Current operating configuration secure Show secure image and configuration archive sessions Information about Telnet connections snmp snmp statistics spanning-tree Spanning tree topology ssh Status of SSH server connections startup-config Contents of startup configuration storm-control Show storm control configuration tcp Status of TCP connections tech-support Show system information for Tech-Support terminal Display terminal configuration parameters users Display information about terminal lines version System hardware and software status vlan-switch VTP VLAN status vtp Configure VLAN database Router#show Router#show ip ? access-lists List access lists arp IP ARP table bgp BGP information dhcp Show items in the DHCP database eigrp IP-EIGRP show commands inspect CBAC (Context Based Access Control) information interface IP interface status and configuration ips IPS (Intrusion Prevention System) information nat IP NAT information nbar Network-Based Application Recognition ospf OSPF information protocols IP routing protocol process parameters and statistics rip IP RIP show commands route IP routing table ssh Information on SSH show interfaces：显示所有路由器端口状态，如果想要显示特定端口的状态，我们可以键入“show interfaces” 后面跟上特定的网络接口和端口号即可，如：router#show interfaces serial 0/1。 show controllers serial：显示特定接口的硬件信息。 show clock：显示路由器的时间设置。 show hosts：显示主机名和地址信息。 show users：显示所有连接到路由器的用户。 show history：显示键入过的命令历史列表。 show flash：显示flash存储器信息以及存储器中的IOS映象文件。 show version：显示路由器信息和IOS信息。 show arp：显示路由器的地址解析协议列表。 show protocol：显示全局和接口的第三层协议的特定状态。 show startup-configuration：显示存储在非易失性存储器（NVRAM）的配置文件。0 0 0 0 0 0 0 0 0 show running-configuration：显示存储在内存中的当前正确配置文件。 |
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