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+# 作业
+
+# 路由器的基本配置
+
+路由器与pc使用交叉线。
+
+rt与sw不同，自身可配IP。
+
+相关命令：
+
+查看路由表：show ip route
+
+消除ip：no ip address
+
+查看接口列表：show ip interface（brief简洁）
+
+rt各接口只能接不同网段，不同网段pc通信通过网关，网关一般是接口ip，与pc一个网段。
+
+# 作业：
+
+拓扑图：
+
+![](F:\计算机网络基础\network\52 苏清华\images\240419.png)
+
+pc0与pc1的网关为1.10；pc2与pc3的网关为2.10
+
+路由器
+
+```java
+Router>en
+Router#conf
+Router(config)#int g0/0
+Router(config-if)#ip add 192.168.1.10 255.255.255.0 //配置pc0 1的网关
+Router(config-if)#no sh
+
+Router(config-if)#int g0/1
+Router(config-if)#ip add 192.168.2.10 255.255.255.0 //配置pc2 3的网关
+Router(config-if)#no sh
+Router(config-if)#line vty 0 4
+Router(config-line)#pass 000
+Router(config-line)#login //配置telnet
+Router(config-line)#exit
+Router(config)#enable pa 000
+Router(config)#ex
+Router#wr
+Building configuration...
+[OK]
+```
+
+以pc1为例：
+
+~~~java
+C:\>ping 192.168.1.2 //同网段的pc1
+
+Pinging 192.168.1.2 with 32 bytes of data:
+
+Reply from 192.168.1.2: bytes=32 time<1ms TTL=128
+Reply from 192.168.1.2: bytes=32 time<1ms TTL=128
+Reply from 192.168.1.2: bytes=32 time<1ms TTL=128
+Reply from 192.168.1.2: bytes=32 time<1ms TTL=128
+
+Ping statistics for 192.168.1.2:
+    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
+Approximate round trip times in milli-seconds:
+    Minimum = 0ms, Maximum = 0ms, Average = 0ms 
+
+C:\>ping 192.168.1.10//同网段的网关
+
+Pinging 192.168.1.10 with 32 bytes of data:
+
+Reply from 192.168.1.10: bytes=32 time=1ms TTL=255
+Reply from 192.168.1.10: bytes=32 time<1ms TTL=255
+Reply from 192.168.1.10: bytes=32 time<1ms TTL=255
+Reply from 192.168.1.10: bytes=32 time<1ms TTL=255
+
+Ping statistics for 192.168.1.10:
+    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
+Approximate round trip times in milli-seconds:
+    Minimum = 0ms, Maximum = 1ms, Average = 0ms 
+
+C:\>ping 192.168.2.10 //不同网段的网关
+
+Pinging 192.168.2.10 with 32 bytes of data:
+
+Reply from 192.168.2.10: bytes=32 time=1ms TTL=255
+Reply from 192.168.2.10: bytes=32 time<1ms TTL=255
+Reply from 192.168.2.10: bytes=32 time<1ms TTL=255
+Reply from 192.168.2.10: bytes=32 time<1ms TTL=255
+
+Ping statistics for 192.168.2.10:
+    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
+Approximate round trip times in milli-seconds:
+    Minimum = 0ms, Maximum = 1ms, Average = 0ms
+
+C:\>ping 192.168.2.1 //不同网段的pc2
+
+Pinging 192.168.2.1 with 32 bytes of data:
+
+Request timed out.
+Reply from 192.168.2.1: bytes=32 time<1ms TTL=127
+Reply from 192.168.2.1: bytes=32 time<1ms TTL=127
+Reply from 192.168.2.1: bytes=32 time<1ms TTL=127
+
+Ping statistics for 192.168.2.1:
+    Packets: Sent = 4, Received = 3, Lost = 1 (25% loss),
+Approximate round trip times in milli-seconds:
+    Minimum = 0ms, Maximum = 0ms, Average = 0ms
+
+C:\>telnet 192.168.2.10 //远程登录
+Trying 192.168.2.10 ...Open
+
+
+User Access Verification
+
+Password: 
+Router>en
+Password: 
+Router#
+
+[Connection to 192.168.2.10 closed by foreign host]
+C:\>
+~~~