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  1. Traffic Server
  2. TS-5071

ip_allow filtering happens after parent selection

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    Details

    • Type: Bug
    • Status: Open
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: Security
    • Labels:
      None

      Description

      I have child/parent setup where I would like to block some IP ranges by providing ip_allow filters on the child. The child is accepting connections from those blocked client IPs. This is an issue and needs to be addressed.

      After taking a closer look at the logs, it is evident that ip_allow filtering is happening after parent selection and hence child accepts the connection from client. The child then talks to parent and connection goes through successfully.

      ##################
      Child
      ##################
      Child's IP: 10.11.11.11

      Remap on child:
      map foo.com foo.com \
      @src_ip=10.11.0.0-10.11.255.255 \
      @action=allow

      parent.config on child:
      dest_domain=. parent="proxy1.example.com:8080" round_robin=strict

      ##################
      Parent
      ##################
      Remap on Parent:
      map foo.com origin \
      @src_ip=10.11.0.0-10.11.255.255 \
      @action=allow

      When I curl from client(Eg: 10.44.2.2), the connection goes through successfully.

      • Child does parent selection before ip_allow filtering. Hence it connects to parent.
      • Child talks to parent as client and hence the connection will go through successfully. I looked into logs on parent which shows that the clientIP has child's IP 10.11.11.11. Since 10.11.11.11 is a valid IP range for parent, the connection goes through.

      The issue is only with parent child setup. On a standalone ATS setup, it blocks the IP and works as expected.

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            • Assignee:
              bcall Bryan Call
              Reporter:
              meeramn Meera Mosale Nataraja
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              Dates

              • Created:
                Updated: