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tuannguyen1712's avatar
tuannguyen1712
Icon for Altocumulus rankAltocumulus
Jul 10, 2019

BigIP DNS in route domain

Hi guys, really need your help!!!

I have 4 F5 (2 running DNS, 2 running LTM, both in HA pair). since this system needs to service for public user (internet) and private user (over wan) I need to configure bigIP DNS and bigIP LTM in 2 route domain. BigIP LTM run 2 route domain is ok for me, but I find some troubles to configure BigIp DNS with 2 route domain. The steps to configure vlan, self IP, static route with route domain is ok (same as LTM) but when I configure servers on big IP DNS, I can not assign route domain ID to server, this leads to one thing: the server is down forever.

application delivery
BIG-IP DNS
LTM

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  • Dario_Garrido's avatar
    Dario_Garrido
    Icon for MVP rankMVP
    Jul 10, 2019

    Hello.

    ​

    Base on the documentation:

    ​"Important: On a BIG-IP® system that includes both Local Traffic Manager™ (LTM®) and Global Traffic Manager™ (now BIG-IP ®DNS), all IP addresses that BIG-IP DNS references (virtual IP addresses, link addresses, and so on) must be associated with route domain 0."

    REF - https://techdocs.f5.com/kb/en-us/products/big-ip_ltm/manuals/product/tmos-routing-administration-12-0-0/9.html

    ​

    You can use route domains in different LTM devices using this

    REF - https://techdocs.f5.com/kb/en-us/products/big-ip-dns/manuals/product/bigip-dns-implementations-13-0-0/11.html

    ​

    KR,

    Dario.

    • tuannguyen1712's avatar
      tuannguyen1712
      Icon for Altocumulus rankAltocumulus
      Jul 10, 2019

      you are correct bro, it is unable to configure big-ip dns with route domain. Thank you so much!

    • tuannguyen1712's avatar
      tuannguyen1712
      Icon for Altocumulus rankAltocumulus
      Jul 11, 2019

      By the way, do you know the big-ip dns feature which allows to resolve the same domain to different virtual server for public and private request?

      • Dario_Garrido's avatar
        Dario_Garrido
        Icon for MVP rankMVP
        Jul 11, 2019

        I don't know if I understand correctly, but you can apply an iRule to one VS to respond differently base on the source ip for example.