In our example network, all LAN segments can access all LAN segments. To block students from accessing resources available outside the Students segment, the administrator created an access list and applied it to the F0/0 interface of the router. The ACL has the following entry. If a packet ...
思科Cisco路由器access-list访问控制列表命令详解 标准型IP访问列表的格式 --- 标准型IP访问列表的格式如下: --- access-list[list number][permit|deny][source address][address][wildcard mask][log] --- 下面解释一下标准型IP访问列表的关键字和参数。首先,在access和list这2个关键字之间必须有一个连字...
回答:Router(config)#access-list 1 permit 192.168.1.0 0.0.0.255 建立一个控制列表 ,列表为 1,用来定义内部使用的私有IP地址段,为地址转换为公网IP做准备,此处定义了192.168.1.0网段.Router(config)#ip nat pool... 分析总结。 routerconfigaccesslist1permit19216810000255建立一个控制列表列表为1用来定义内部使用...
Router(config)#ip access-list standard 20 Router(config-std-nacl)#no 40 Router(config-std-nacl)#no 50 Router(config-std-nacl)#no 60 Router(config-std-nacl)#no 70 Router(config-std-nacl)#no 80 Router(config-std-nacl)#no 90 再看一下条目,40 50 60 70 80 90已被删除 Router#show ip ...
Router# show access-lists ipv6 marketing hardware ingress location 0/RP0/CPU0 ipv6 access-list marketing 10 permit ipv6 3333:1:2:3::/64 any 20 permit ipv6 4444:1:2:3::/64 any 30 permit ipv6 5555:1:2:3::/64 any Router# clear access-list ipv6 marketing hardware ingress ...
router eigrp 1 no auto-summary network 23.1.1.0 0.0.0.255 network 33.1.1.0 0.0.0.255 exit R1: end ping 33.1.1.1 source 11.1.2.1 conf t 1.标准Access List --- R2: access-list 10 deny 11.1.2.0 0.0.0.255 access-list 10 permit any int f1/0 ip access-group 10 out exit R3: access-...
在配置Cisco路由器中,经常会使用access-list来控制IP包的访问流向,从而达到安全效果。不应用到具体接口的access-list是没有意义的,在Cisco IOS中通过ip access-group access-list-number in|out命令来应用到具体的接口上。下面通过实验来谈谈在Cisco路由器接口上应用access-list时需要明确方向(in | out),以提高在工...
and named, but it is not in effect until the access list is referenced by a command that accepts an access list. Multiple commands can reference the same access list. An access list can control traffic arriving at the router or leaving the router, but not traffic originating ...
r1(config-router)#network 192.168.2.0 r2的配置如下 : Router(config)#hostname r2 r2(config)#interface s0 r2(config-if)#ip address 192.168.2.2 255.255.255.0 r2(config-if)#no shut r2(config-if)#interface e0 r2(config-if)#ip address 192.168.3.1 255.255.255.0 ...
Standard IP acceSS list 30 deny 127.0.0.0,wildcard bits 0.255.255.255 deny 172.16.0.0,wiidcard bits 0.15.255.255 permft any 根据上述信息,正确的access-list配置是___。 A) Router(config)#access-list 30 deny 127.0.0.0 255.255.255.0 Router...