我今天启动了一个命名 ACL 实验室,但我的配置不太正常。
实验室: http: //gns3vault.com/security/named-access-list/
第一项任务是创建一个 ACL,阻止用户从 NSA 的 L1 访问 CIA 的 L2 上的 HTTPS。
寻址很好,我可以ping所有接口。
我的配置放置在 NSA 上,不同于作者将配置放置在 CIA 路由器上的配置。后来我按照实验室作者的配置方式进行了配置,并且成功了。
我的配置:
NSA#sh access-lists
Extended IP access list NSA_L1_TO_CIA_L2
10 deny tcp 33.33.33.0 0.0.0.255 111.111.111.96 0.0.0.31 eq 443
20 permit ip any any (444 matches)
sh ip int e0/0
Ethernet0/0 is up, line protocol is up
Internet address is 192.168.13.3/24
Broadcast address is 255.255.255.255
Address determined by setup command
MTU is 1500 bytes
Helper address is not set
Directed broadcast forwarding is disabled
Multicast reserved groups joined: 224.0.0.5 224.0.0.6
Outgoing access list is NSA_L1_TO_CIA_L2
Inbound access list is NSA_L1_TO_CIA_L2 (This shouldn't be here, I just put for test purposes)
... (Continues...)
有人可以解释为什么吗?