1、要关闭一些tcp端口,有没有什么办法,全局应用关闭?给个小脚本参考一下谢谢!
acl ad 3050
rule 0 deny tcp source-port eq 5800
rule 5 deny tcp destination-port eq 5800
rule 10 deny tcp source-port eq 5900
rule 15 deny tcp destination-port eq 5900
rule 20 deny tcp source-port eq 1434
rule 25 deny tcp destination-port eq 1434
rule 30 deny tcp source-port eq 445
rule 35 deny tcp destination-port eq 445
rule 40 permit ip
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最佳答案
您好,参考:
1、创建ACL,对高危端口进行拦截:
acl number 3210
rule 0 deny tcp destination-port eq 135
rule 1 deny udp destination-port eq 135
rule 2 deny tcp destination-port eq 137
rule 3 deny udp destination-port eq netbios-ns
rule 4 deny tcp destination-port eq 138
rule 5 deny udp destination-port eq netbios-dgm
rule 6 deny udp destination-port eq netbios-ssn
rule 7 deny tcp destination-port eq 139
rule 8 deny tcp destination-port eq 445
rule 9 deny udp destination-port eq 445
rule 10 deny tcp destination-port eq 3389
rule 11 deny udp destination-port eq 3389
rule 20 deny tcp source-port eq 135
rule 21 deny udp source-port eq 135
rule 22 deny tcp source-port eq 137
rule 23 deny udp source-port eq netbios-ns
rule 24 deny tcp source-port eq 138
rule 25 deny udp source-port eq netbios-dgm
rule 26 deny udp source-port eq netbios-ssn
rule 27 deny tcp source-port eq 139
rule 28 deny tcp source-port eq 445
rule 29 deny udp source-port eq 445
rule 30 deny tcp source-port eq 3389
rule 31 deny udp source-port eq 3389
rule 1500 permit ip
2、将ACL下发到端口:
interface Ten-GigabitEthernet 1/1/1
packet-filter 3210 inbound
packet-filter 3210 outbound
quit
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谢谢你
谢谢你
1、如果是交换机本身的tcp端口,只能通过关闭服务实现,也就是undo telnet server enable,类似这种
2、如果是途径的,可以acl过滤
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