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same IP subnet network communication through srx300

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  • 1.  same IP subnet network communication through srx300

    Posted 06-06-2018 03:26

    Hi,

     

    Here is  2 buildings with same IP subnet but different gateway. We need to connect SRX300 in between 2 building and exchange data between certain nodes(node IP are diffrent at both location). we can not change IP subnet at both end(all systems are in production).

     

    Building A --> 172.16.0.0/21  Gateway 172.16.0.174

    Building B --> 172.16.0.0/21  Gateway 172.16.0.200

    All nodes are connected on respective L2 switch at respective building. We could not connect A building nodes directly on B building switch. there are different application running at both location.

    Can we configure nat on srx to communicate same subnet IP or any other solution. i also want to apply security policy for source and destination IP/node.


    #SRX


  • 2.  RE: same IP subnet network communication through srx300

    Posted 06-06-2018 03:42

    Hi,

    Please share proposed network diagram with SRX and IP details.

     



  • 3.  RE: same IP subnet network communication through srx300
    Best Answer

    Posted 06-06-2018 04:04


  • 4.  RE: same IP subnet network communication through srx300

    Posted 06-06-2018 08:01
      |   view attached

    Hi,

    Please find attached network diagram. This is small setup. Customer can not go for PS.

    PC from Outside zone will communicate with Inside zone PC

    PC from Vendor zone will communicate with Inside zone PC

     

    Please suggest

    Attachment(s)

    pptx
    Network topology.pptx   34K 1 version


  • 5.  RE: same IP subnet network communication through srx300

    Posted 06-06-2018 19:19

    Hi,

    As 'aarseniev' suggested, configuring SRX as a transparent firewall is the best option here.