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Forum Discussion

jk303's avatar
jk303
Icon for Nimbostratus rankNimbostratus
Sep 14, 2018

DNS to LTM (Server peering for GSLB)

GTM1 (one external selfIP) LTM1 (one external selfIP, multiple internal selfIPs)

 

I noticed that the HELP under DNS->GSLB->Server List states "Address: Spedifies an external (public) address for the device."

 

In Guides - it is recommended to use SELF-IPs of devices to peer. BUT does it really HAVE to be 'external' ? Are there any limitations simply peering to the LTM using one of the internal selfIPs?

 

Thanks for feedback!

 

application delivery
BIG-IP DNS
dns
gslb

3 Replies

  • Stanislas_Piro2's avatar
    Stanislas_Piro2
    Icon for Cumulonimbus rankCumulonimbus
    Sep 14, 2018

    If your deployment is

     

    • 1 gtm per data center
    • 1 ltm per data center

    So it’s better if both gtm can probe both ltm devices...

     

    In this configuration, ltm must have a public ip.

     

    Else, ltm and gtm can use internal ip

     

  • Dan_Pacheco's avatar
    Dan_Pacheco
    Icon for Cirrus rankCirrus
    Sep 14, 2018

    it can be any IP as long as each GTM can communicate with each LTM and vice versa.