Wireless Access

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Access network design for branch, remote, outdoor, and campus locations with HPE Aruba Networking access points and mobility controllers.
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Interface Session ACL

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  • 1.  Interface Session ACL

    Posted Sep 29, 2016 08:59 AM

    Hello,

     

    my aruba controller is connected to the MZ and directly reachable from the internet.

     

    We DNAT connections to the controller IPs to a internal system, but all other connections we want to block.

     

    ip access-list session ExtInterface_ACL
      host x.x.x.x host x.x.x tcp 443  dst-nat ip x.x.x.x
      any any any  deny log
    !

    DNAT is working. If I observe the security log I can see other external systems "probing" TCP Ports and theese packets get blocked as expected.

     

    But if I try to establish a connection via ssh to the IP Adress of this Interface I get a login promt.

     

    #show acl hits
    
    Port Based Session ACL
    ----------------------
    Policy                   Src   Dst         Service/Application  Action  Dest/Opcode  New Hits  Total Hits  Index  Ipv4/Ipv6
    ------                   ---   ---         -------------------  ------  -----------  --------  ----------  -----  ---------
    validuser                any   any         any                  permit               5         55          53     ipv4
    ExtInterface_ACL  any   controller  any                  deny                 12        12          1591   ipv4
    ExtInterface_ACL  any   any         any                  deny                 10        10          1592   ipv4

    I guess this is related to the validuser ACL?

     

    If yes: There are no valid users behind this interface. How can I disable this ACL for this interface?

    If not: Please tell where to search for a solution.

     

    Thanks in advance!

     



  • 2.  RE: Interface Session ACL

    Posted Sep 29, 2016 09:06 AM

    I forgot one thing. If I want to make this port untrusted, I get the following message:

     

    Illegal Operation: Cannot make the port untrusted.