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Data Catalog dynamic IP address frustrates IP address security filters in remote clouds and on-premise systems.

I'm testing the Data Catalog's ability to access a remote(to IBM's cloud) relational database.  I provisioned a NoSQL database using AWS RDS service.  I wanted to set the AWS security group to only permit access from the IP address used by the Data Catalog.  I used AWS logging to determine the IP address used by Data Catalog and set the security group to permit access from that IP.  Data Catalog was able to access the MySQL database and access the data.  However, the next day it stopped working.  Reviewing the access logs on AWS showed the IP address used by the Data Catalog had changed.  I tried this several different times and at some point the IP address of the Data Catalog would change (the "From" address as seen by the AWS security group.) The class-A subnet also changed making it impossible to create a generic IBM cloud filter.  I realize IP addresses are a bad approach but, unfortunately, are in use as security filters by clouds and on-premise systems. 

Is there any way to specify a public IP address for the Data Catalog to use that doesn't change?   

I don't know if the observed behavior is coming from Data Catalog or the networking layer of Bluemix and/or Softlayer. 

My next step is to try setting up a Security Gateway between Bluemix and AWS with the idea I can get the Data Catalog to use the Security Gateway to tunnel over to a virtual lan segment at AWS where the database resides. 


Thank you

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  • Dec 14 2018
  • Needs review
Why is it useful?
Who would benefit from this IDEA? As a customer I want to access an on-premise or remote cloud protected by IP address based security filtering
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Idea Priority Low
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Submitting Organization F2F Sales
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  • David Lebutsch commented
    December 14, 2018 17:59

    Work with Domenico Conia ... essentially each IBM data center has an IP range for outgoing connections.  We need to get that documented.

    Hi David,
    I did a good discussion and also some of these info was present in the deck
    you saw 30min ago in the "Public Isolation" Webinar.

    I don't have time today to prepare a good simple diagram
    but here the answer to your question.

    Short answer:  YES , as I said you before the traffic coming from a customer account is in the 90% of the cases simple to "white-list".

    A- Customer account managed by IBM:
        Secure Perimeter can be Vyatta 5600 or Fortigate FW

    B- Customer account managed by the customer
        Secure perimeter can be  Vyatta 5600 or Fortigate FW
        or any "customized" secure solution they want to put.
    The main architecture is not changing, with Scenario B the customer is responsible to manage the security

    There are 2 Scenarios available today :

    1-Vyatta Based Perimeter     ==> Source NAT is always configured on the Vyatts by BMX network engineer
                                                      so all the out-coming traffic to internet has 1 or  a few specific public IPs as source
                                                      (configured on the Vyatta or equivalent firewall)
                                                      CF Accounts

    2- Armada Based Perimeter  ==> Source NAT is still configured but on IP Tables
                                                      Project name: "BedRock" 
                                                     Fred Tucci is the lead architect for this project.
                                                     They use Front End Armada nodes as "secure perimeter" with IP Tables on board
                                                     Application runs on Back End Armada Nodes.
                                                     Armada Accounts

    Both scenario (Vyatta-Vyatta less) MUST be monitor to avoid the risk of
    missing-wrong firewall rules.
    IPTables (scenario 2) can be a mess with a lot of Fred is probably using automation
    to deploy and monitor the IP Tables. IF one rule is wrong (e,g, they forgot any any any allowed)
    an alarm is notified.

    On Scenario 1-Vyatta- this is alsways included in the BMX security architecture (vyatta fw rules are monitored).

    FUTURE Scenario:                         
    3- Another scenario (not possible today, could be in a few months hopefully) is BYOP
        With BYOP the customer could assign speficic addresses as Source or his environment

    Kind regards
    Domenico Conia
    IBM Italia S.p.A.                              Mobile: +39 3357446011
    IBM Watson Data Platform             Infrastructure team
    Certified Expert IT Architect Cloud & Security

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