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复习

静态路由:应用静态路由 iP route +网络段+子网掩码+下一跳地址

 

Ospfrouter ospf1-- router-id 1.0.0.0-- network 10.0.1.0 0.0.0.31 area 0

 

单臂路由+dhcp中继+地址池:router0   in f0/0.1 ip helper-address 172.16.3.1

                                    in f0/0.2 ip helper-address 172.16.3.1

router1  in f0/0.1ip router 172.16.1.0 255.255.255.0 172.16.3.2

         in f0/0.1 ip router 172.16.2.0 255.255.255.0 172.16.3.2

ip dhcp pool server0   default-router  172.16.1.1   network 172.16.1.0 255.255.255.0    ip dhcp excluded-address 保留的地址

               

地址池:路由器:ip dhcp pool servA   

        default-router 172.16.1.1  

        network 172.16.1.0 255.255.255.0

 

全局  ip dhcp excluded-address 172.16.1.1 172.16.1.99

      ip dhcp excluded-address 172.16.1.121 172.16.1.254

      ip dhcp excluded-address 172.16.1.110 172.16.1.110

 

 

2、配置合适的ACL,满足以下要求:

   1PC0pingPC1,但不能访问PC1发布的FTP服务;

   2PC0不能pingPC2,但能访问PC2发布的Web服务。

(1)ip access-list ex 100    deny (tcp端口,IP不是端口) host 172.16.0.2(源地) host 172.16.1.2 ()目标地址)eq ftp   permit ip any any   in f1/0   ip access-group 100 out 

(2)接(1no permit ip any any   deny icmp, host 172.16.0.2 host 172.16.1.3  permit ip any any

permit ip any any

 

 

pc0不能访问pc2  pc0为源,pc2为目标

ip access-list standard 1-99  为标准控制列表

ip access-list extanded 100-199 为扩展控制列表

ACL离目标最近用OUT

ACL 离源最近用    IN

(端口:FTP 21,DNS 53,POP3 110,WWW 80,SMTP 25,TELNET 23

                                                                  

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