VMware NSX

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  • 1.  Route between VRFs

    Posted Mar 26, 2021 02:35 PM

    Hello all,

    I'm using VRF lite on NSX-T 3.1. I'm facing the following issue:

    Petersaints_0-1616768480652.png

    I need that Customer1 VRF can reach internet. To do that i create a static route on Customer1 VRF to reach the 1st T1. The route is 0.0.0.0/0, next hop x.x.x.1 (scope T0). On my T0, i have a static route to reach PROD T1 and other static to reach DEV T1 (.7 and .13 - scope customer1). Everything work, i have internet access.

     

    But, if on Customer1 VRF i change the 0.0.0.0/0 route to reach the 2nd T1 (next hop x.x.x.17 - scope T0) or even the .16 of T0, instead  of .1 ip, i loss internet access. What is the difference? Why if i point to 1st T1 works? I don't have any hit on gateway firewall.

    Can anyone explain?

    Thanks.

    Regards.



  • 2.  RE: Route between VRFs

    Posted Mar 26, 2021 02:59 PM

    In order to reach the internet from your VRF Customer 1, you should have a 0.0.0.0/0 pointing to a next hop that does not belong to the outside fabric.

    Since you have multiple uplinks, I would create some loopbacks on the TOR and point to them.

    I have never tried pointing to the other T1 in order to reach something north bound.... I will though.

     

    Try the methodology above please.

     

    Thanks

     

    Nicolas



  • 3.  RE: Route between VRFs

    Posted Mar 26, 2021 03:57 PM

    Hi  

    What do you mean with "pointing to a next hop that does not belong to the outside fabric"?

    My T0 is connect via BGP to TOR, and the internet connection if through a vlan backed.

     

    Thanks.