请问下列几条命令分别表示什么意思
deny ip host 255.255.255.255 any
deny ip 127.0.0.0 0.255.255.255 any
deny ip host 0.0.0.0 any
deny ip any any log
另一个严重的问题,如何根据那些ACL来判定是为信任接口还是非信任接口配置的呢?
10.1.2.0 |
内部 10.1.3.0 | 外部
64.1.1.4 |
access-list 102 remark auto generated by SDM firewall configuration
access-list 102 remark SDM_ACL Category=1
access-list 102 deny ip 10.1.3.0 0.0.0.255 any
access-list 102 deny ip 10.1.2.0 0.0.0.255 any
access-list 102 deny ip 64.1.1.4 0.0.0.3 any
access-list 102 deny ip host 255.255.255.255 any
access-list 102 deny ip 127.0.0.0 0.255.255.255 any
access-list 102 permit ip any any
access-list 103 remark auto generated by SDM firewall configuration
access-list 103 remark SDM_ACL Category=1
access-list 103 deny ip 10.1.3.0 0.0.0.255 any
access-list 103 deny ip 10.1.2.0 0.0.0.255 any
access-list 103 deny ip 10.1.4.0 0.0.0.255 any
access-list 103 permit icmp any host 64.1.1.5 echo-reply
access-list 103 permit icmp any host 64.1.1.5 time-exceeded
access-list 103 permit icmp any host 64.1.1.5 unreachable
access-list 103 permit ospf any any
access-list 103 deny ip 10.0.0.0 0.255.255.255 any
access-list 103 deny ip 172.16.0.0 0.15.255.255 any
access-list 103 deny ip 192.168.0.0 0.0.255.255 any
access-list 103 deny ip 127.0.0.0 0.255.255.255 any
access-list 103 deny ip host 255.255.255.255 any
access-list 103 deny ip host 0.0.0.0 any
access-list 103 deny ip any any log<这里,前面都是deny,为什么这里还有deny any any 呢,用这一句不是包含前面所有的了吗>