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Cisco Packet Tracer自反ACL

一直以为Cisco Packet Tracer无法做单向ACL,但实际官网说从5.3版本开始支持CBAC,那么CBAC是啥呢?是Cisco's Context-Based Access Control 的缩写 ,是一种安全组件,功能类似于ISR路由器中提供的自反ACL。
工具/原料

Cisco Packet Tracer6.3

方法/步骤
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使用Cisco Packet Tracer6.3

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实验使用拓扑

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首先先查看许可文件情况enableshow license feature

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需要激活2911路由器设备的许可操作步骤如下:Router>enable Router#configure terminal  Router(config)#license boot module c2900 technology-package securityk9PLEASE  READ THE  FOLLOWING TERMS  CAREFULLY. INSTALLING THE LICENSE OR LICENSE  KEY  PROVIDED FOR  ANY CISCO  PRODUCT  FEATURE  OR  USING SUCH PRODUCT  FEATURE  CONSTITUTES  YOUR  FULL ACCEPTANCE  OF  THE FOLLOWING TERMS. YOU MUST NOT PROCEED FURTHER IF YOU ARE NOT WILLING TO  BE BOUND BY ALL THE TERMS SET FORTH HEREIN. Use of this product feature requires  an additional license from Cisco, together with an additional  payment.  You may use this product feature on an evaluation basis, without payment to Cisco, for 60 days. Your use of the  product,  including  during the 60 day  evaluation  period,  is subject to the Cisco end user license agreement http://www.cisco.com/en/US/docs/general/warranty/English/EU1KEN_.html   If you use the product feature beyond the 60 day evaluation period, you must submit the appropriate payment to Cisco for the license. After the 60 day  evaluation  period,  your  use of the  product  feature will be governed  solely by the Cisco  end user license agreement (link above), together  with any supplements  relating to such product  feature.  The above  applies  even if the evaluation  license  is  not  automatically terminated  and you do  not receive any notice of the expiration of the evaluation  period.  It is your  responsibility  to  determine when the evaluation  period is complete and you are required to make  payment to Cisco for your use of the product feature beyond the evaluation period.Your  acceptance  of  this agreement  for the software  features on one product  shall be deemed  your  acceptance  with  respect  to all  such software  on all Cisco  products  you purchase  which includes the same software.  (The foregoing  notwithstanding, you must purchase a license for each software  feature you use past the 60 days evaluation  period, so  that  if you enable a software  feature on  1000  devices, you must purchase 1000 licenses for use past  the 60 day evaluation period.)Activation  of the  software command line interface will be evidence of your acceptance of this agreement.ACCEPT? [yes/no]: yes% use 'write' command to make license boot config take effect on next boot %IOS_LICENSE_IMAGE_APPLICATION-6-LICENSE_LEVEL: Module name = C2900 Next reboot level = securityk9 and License = securityk9 %LICENSE-6-EULA_ACCEPTED: EULA for feature securityk9 1.0 has been accepted. UDI=CISCO2911/K9:FTX1524PCPQ; StoreIndex=0:Evaluation License StorageRouter(config)#exit Router# %SYS-5-CONFIG_I: Configured from console by console  Router#write Building configuration...[OK]Router#reload重启后查看许可文件情况Router>enableRouter#show license feature

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配置接口地址configure terminalinterface GigabitEthernet0/0no shutdownip address 192.168.1.1 255.255.255.0exitinterface GigabitEthernet0/1no shutdownip address 1.1.1.1 255.255.255.252exit

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添加acl和CBACip access-list extended DENY_ANYdeny ip any anyexitinterface GigabitEthernet0/1ip access-group DENY_ANY inexitip inspect name ALLOWED_TRAFIC http audit-trail onip inspect name ALLOWED_TRAFIC icmp audit-trail oninterface gigabitEthernet 0/1ip inspect ALLOWED_TRAFIC outexit

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两台服务器的ip配置

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两台服务器web服务器都打开

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server1测试ping及web访问

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server0测试ping及web访问

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