Cisco 教程 （简单的配置方法）

注意：在配置之前请先看拓扑图（要关注设备之间的连接和连接所用的端口）;并用笔画出拓扑图，在图上备注IP地址和端口信息。 本步目标特注：内网主机(PC1～PC8)能够相互访问；内网主机能够访问外网主机（PC9）。 第一部分：配置交换机1912－1、1912－2和路由器R2621－1（PC机分别属于不同Vlan及不同IP网段） //配置交换机1912－1 >en #conf t Enter configuration commands, one per line. End with CNTL/Z. (config)#vlan 2 name v2 (config)#int e0/2 (config-if)#vlan-membership static 2 (config-if)#exit (config)#int fa0/26 (config-if)#trunk on (config-if)#exit (config)#int fa0/27 (config-if)#trunk on //配置交换机1912－2 >en #conf t Enter configuration commands, one per line. End with CNTL/Z. (config)#vlan 2 name v2 (config)#int e0/2 (config-if)#v s 2 (config-if)#exit (config)#int fa0/26 (config-if)#trunk on //配置路由器R2621－1 Router> Router>en Router#conf t Enter configuration commands, one per line. End with CNTL/Z. Router(config)#int fa0/0 Router(config-if)#no ip address （只须在已经为此端口配置IP地址的情况下使用该命令） Router(config-if)#no shutdown %LINK-3-UPDOWN: Interface FastEthernet0/0, changed state to up Router(config-if)#int fa0/0.1 Router(config-subif)#encapsulation isl 1 Router(config-subif)#ip addres 192.168.1.10 255.255.255.0 Router(config-subif)#int fa0/0.2 Router(config-subif)#encapsulation isl 2 Router(config-subif)#ip addres 192.168.2.10 255.255.255.0 Router(config-subif)#end Router#sh int fa0/0.1 FastEthernet0/0.1.1 is up, line protocol is up Internet address is 192.168.1.10/24 MTU 1500 bytes, BW Kbit, DLY 1000 usec, rely 255/255, load 1/255 Encapsulation ARPA, loopback not set, keepalive set (10 sec) Auto-duplex, Auto Speed, 100BaseTX/FX ARP type: ARPA, ARP Timeout 04:00:00 Router#sh int fa0/0.2 FastEthernet0/0.2.2 is up, line protocol is up Internet address is 192.168.2.10/24 MTU 1500 bytes, BW Kbit, DLY 1000 usec, rely 255/255, load 1/255 Encapsulation ARPA, loopback not set, keepalive set (10 sec) Auto-duplex, Auto Speed, 100BaseTX/FX ARP type: ARPA, ARP Timeout 04:00:00 //配置PC机 PC1：配置IP地址为192.168.1.1（根据交换机上的配置PC1属于vlan1），默认网关地址为192.168.1.10； PC2：配置IP地址为192.168.2.2（根据交换机上的配置PC2属于vlan2），默认网关地址为192.168.2.10； PC3：配置IP地址为192.168.1.3（根据交换机上的配置PC3属于vlan1），默认网关地址为192.168.1.10； PC4：配置IP地址为192.168.2.4（根据交换机上的配置PC4属于vlan2），默认网关地址为192.168.2.10。 －－－在PC2上用ping命令测试： C:>ping 192.168.2.4 Pinging 192.168.2.4 with 32 bytes of data: Reply from 192.168.2.4: bytes=32 time=60ms TTL=241 Reply from 192.168.2.4: bytes=32 time=60ms TTL=241 Reply from 192.168.2.4: bytes=32 time=60ms TTL=241 Reply from 192.168.2.4: bytes=32 time=60ms TTL=241 Reply from 192.168.2.4: bytes=32 time=60ms TTL=241 Ping statistics for 192.168.2.4: Packets: Sent = 5, Received = 5, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 50ms, Maximum = 60ms, Average = 55ms C:>ping 192.168.2.10 Pinging 192.168.2.10 with 32 bytes of data: Reply from 192.168.2.10: bytes=32 time=60ms TTL=241 Reply from 192.168.2.10: bytes=32 time=60ms TTL=241 Reply from 192.168.2.10: bytes=32 time=60ms TTL=241 Reply from 192.168.2.10: bytes=32 time=60ms TTL=241 Reply from 192.168.2.10: bytes=32 time=60ms TTL=241 Ping statistics for 192.168.2.10: Packets: Sent = 5, Received = 5, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 50ms, Maximum = 60ms, Average = 55ms C:>ping 192.168.1.10 Pinging 192.168.1.10 with 32 bytes of data: Reply from 192.168.1.10: bytes=32 time=60ms TTL=241 Reply from 192.168.1.10: bytes=32 time=60ms TTL=241 Reply from 192.168.1.10: bytes=32 time=60ms TTL=241 Reply from 192.168.1.10: bytes=32 time=60ms TTL=241 Reply from 192.168.1.10: bytes=32 time=60ms TTL=241 Ping statistics for 192.168.1.10: Packets: Sent = 5, Received = 5, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 50ms, Maximum = 60ms, Average = 55ms C:>ping 192.168.1.1 Pinging 192.168.1.1 with 32 bytes of data: Reply from 192.168.1.1: bytes=32 time=60ms TTL=241 Reply from 192.168.1.1: bytes=32 time=60ms TTL=241 Reply from 192.168.1.1: bytes=32 time=60ms TTL=241 Reply from 192.168.1.1: bytes=32 time=60ms TTL=241 Reply from 192.168.1.1: bytes=32 time=60ms TTL=241 Ping statistics for 192.168.1.1: Packets: Sent = 5, Received = 5, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 50ms, Maximum = 60ms, Average = 55ms C:>ping 192.168.1.3 Pinging 192.168.1.3 with 32 bytes of data: Reply from 192.168.1.3: bytes=32 time=60ms TTL=241 Reply from 192.168.1.3: bytes=32 time=60ms TTL=241 Reply from 192.168.1.3: bytes=32 time=60ms TTL=241 Reply from 192.168.1.3: bytes=32 time=60ms TTL=241 Reply from 192.168.1.3: bytes=32 time=60ms TTL=241 Ping statistics for 192.168.1.3: Packets: Sent = 5, Received = 5, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 50ms, Maximum = 60ms, Average = 55ms －－－在PC3上用ping命令测试： C:>ping 192.168.1.1 Pinging 192.168.1.1 with 32 bytes of data: Reply from 192.168.1.1: bytes=32 time=60ms TTL=241 Reply from 192.168.1.1: bytes=32 time=60ms TTL=241 Reply from 192.168.1.1: bytes=32 time=60ms TTL=241 Reply from 192.168.1.1: bytes=32 time=60ms TTL=241 Reply from 192.168.1.1: bytes=32 time=60ms TTL=241 Ping statistics for 192.168.1.1: Packets: Sent = 5, Received = 5, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 50ms, Maximum = 60ms, Average = 55ms C:>ping 192.168.1.10 Pinging 192.168.1.10 with 32 bytes of data: Reply from 192.168.1.10: bytes=32 time=60ms TTL=241 Reply from 192.168.1.10: bytes=32 time=60ms TTL=241 Reply from 192.168.1.10: bytes=32 time=60ms TTL=241 Reply from 192.168.1.10: bytes=32 time=60ms TTL=241 Reply from 192.168.1.10: bytes=32 time=60ms TTL=241 Ping statistics for 192.168.1.10: Packets: Sent = 5, Received = 5, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 50ms, Maximum = 60ms, Average = 55ms C:>ping 192.168.2.10 Pinging 192.168.2.10 with 32 bytes of data: Reply from 192.168.2.10: bytes=32 time=60ms TTL=241 Reply from 192.168.2.10: bytes=32 time=60ms TTL=241 Reply from 192.168.2.10: bytes=32 time=60ms TTL=241 Reply from 192.168.2.10: bytes=32 time=60ms TTL=241 Reply from 192.168.2.10: bytes=32 time=60ms TTL=241 Ping statistics for 192.168.2.10: Packets: Sent = 5, Received = 5, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 50ms, Maximum = 60ms, Average = 55ms C:>ping 192.168.2.2 Pinging 192.168.2.2 with 32 bytes of data: Reply from 192.168.2.2: bytes=32 time=60ms TTL=241 Reply from 192.168.2.2: bytes=32 time=60ms TTL=241 Reply from 192.168.2.2: bytes=32 time=60ms TTL=241 Reply from 192.168.2.2: bytes=32 time=60ms TTL=241 Reply from 192.168.2.2: bytes=32 time=60ms TTL=241 Ping statistics for 192.168.2.2: Packets: Sent = 5, Received = 5, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 50ms, Maximum = 60ms, Average = 55ms C:>ping 192.168.2.4 Pinging 192.168.2.4 with 32 bytes of data: Reply from 192.168.2.4: bytes=32 time=60ms TTL=241 Reply from 192.168.2.4: bytes=32 time=60ms TTL=241 Reply from 192.168.2.4: bytes=32 time=60ms TTL=241 Reply from 192.168.2.4: bytes=32 time=60ms TTL=241 Reply from 192.168.2.4: bytes=32 time=60ms TTL=241 Ping statistics for 192.168.2.4: Packets: Sent = 5, Received = 5, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 50ms, Maximum = 60ms, Average = 55ms 第二部分：配置路由器R2621－2和PC5～PC8（PC机分别属于不同IP网段） //配置路由器R2621－2 Router>en Router#conf t Enter config