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Interzone policy in AR

Latest reply: Oct 13, 2018 10:02:51 746 2 2 0 0

ProblemDescription

    AR is able to ping the destination ip ieSNMP Server ( 10.2.9.11 & 10.1.9.11 ), but SNMPServer are not able to ping our router ip .

    Customer wants the network is reachable.

    【ProblemAnalysis






   About this ticket , the issue  is AR settinga  interzone Policy to block the traffic from Untrust (SNMP Server) toLocal (10.50.62.97 )


        


         But the trafficfrom Local(10.50.62.97) to Untrust (SNMP Server ) is allowed  , so AR is ableto ping SNMP Server , and the server is not.


 


         IF you want theSNMP Server be able to ping the AR , you can add an Advanced ACL to permit the traffic from SNMP Server(10.2.9.11 & 10.1.9.11) to AR.


        


         Please referbelow commands:


        


<Huawei>system-view


[Huawei]acl 3001


[Huawei-acl-adv-3001]rule 5 permit ip source 10.1.9.11  0 destination 10.50.62.97 0


[Huawei-acl-adv-3001]rule 10 permit ip source 10.2.9.11  0 destination 10.50.62.97 0


         [Huawei]firewall interzone local untrus


[Huawei-interzone– local - untrust] packet-filter 3001 inbound


 


         Configure ACLand apply it , please refer below link:


        


http://support.huawei.com/hedex/pages/EDOC1000085855AEG05127/13/EDOC1000085855AEG05127/13/resources/dc/dc_cfg_acl_1032.html?ft=0&fe=10&hib=7.3.17.6.7.2.2&id=dc_cfg_acl_1032&text=Configuring an Advanced ACL&docid=EDOC1000085855


 


http://support.huawei.com/hedex/pages/EDOC1000085855AEG05127/13/EDOC1000085855AEG05127/13/resources/dc/dc_cfg_fw_0015.html?ft=0&fe=10&hib=7.3.17.7.7.2&id=dc_cfg_fw_0015&text=Configuring ACL-based Packet Filtering in an Interzone&docid=EDOC1000085855


 


P.s


Aboutto tracert of the AR Router,  it’s default unreachable , if you need it beable to tracert , you should configure it like below:


 



 


http://support.huawei.com/hedex/pages/EDOC1000085855AEG05127/13/EDOC1000085855AEG05127/13/resources/dc/dc_ar_troubleshooting_0069.html?ft=0&fe=10&hib=9.2.13.3&id=dc_ar_troubleshooting_0069&text=Ping and Tracert&docid=EDOC1000085855

 



Root Cause

      The AR router has been enabled Firewall function , but not permit the traffic .


SolutionDescription

Remote to customer's AR router add ACL for permiting traffic ,then solve the issue

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Mark.hu
Created Sep 30, 2018 01:57:14

I have encountered this question about you. I have checked a lot of information, but I still have not answered this question clearly. Thank you for sharing this knowledge and solving my doubts. I hope that you can continue to update such knowledge points. Thank you. !
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faysalji
Author Created Oct 13, 2018 10:02:51

Good case. sharing the case is appreciated !
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