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Junos Equivalent of Front Door VRF

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  • 1.  Junos Equivalent of Front Door VRF

    Posted 09-15-2020 15:03

    Hi Everyone,

     

    In past, when I used Cisco routers, I configured tunnels with a front door VRF. As far as I'm aware, this is Cisco terminology.

     

    Now I need to create a site-to-site VPN using an SRX at both ends. Is there a Junos equivalent of the front-door VRF?

     

     

    Thanks

     



  • 2.  RE: Junos Equivalent of Front Door VRF

    Posted 09-15-2020 18:14

    Hello Luke,

     

    The Junos equivalent of Cisco's VRF is Routing Instances. Please check the following document for configuring the VPN in SRX in Routing Instance - https://www.juniper.net/documentation/en_US/junos/topics/topic-map/security-secure-tunnel-interface-in-a-virtual-router.html



  • 3.  RE: Junos Equivalent of Front Door VRF

    Posted 09-15-2020 20:22

    Thanks for your reply, but I'm not asking about VRF-Lite.

    I want to know if Juniper has an equivalent of a Front-Door VRF.

     

    This is where a specific VRF (or routing-instance) is used as the underlay, and another VRF is the overlay.

    For example, VRF-1 is the underlay, and has a default route over the internet. This VRF is used for building the tunnel, and establishing the IPSec SA's.

    VRF-2 (of the global VRF) is the overlay. The tunnel interface is in this VRF. This VRF has a default route that pushes traffic over the tunnel.

     

    Does Juniper have this?



  • 4.  RE: Junos Equivalent of Front Door VRF
    Best Answer

    Posted 09-16-2020 01:56

    With SRX you can have your IKE gateway address placed in one routing-instance (or global inet.0) and then terminate the decapsulated traffic into a different routing-instance... so from your description, I would say "yes" 🙂

     

    You will just use route-based VPN with SRX gateways and then bind eg. st0.1 interface to routing-instance X and st0.2 to routing-instance Y.



  • 5.  RE: Junos Equivalent of Front Door VRF

    Posted 09-16-2020 14:54

    That sounds like what I'm looking for, thanks!

     

    I think I will need to lab this first... Off to jLabs I go!