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Forum to discuss Silver Peak EdgeConnect SD-WAN and Aruba SD- Branch. This includes SD-WAN Orchestration WAN edge network functions including routing, security, zone-based firewall, segmentation and WAN optimization, micro-branch solutions, best practices, third party integrations, All things SD-WAN!
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Path Selection for GRE Tunnel Traffic

This thread has been viewed 24 times
  • 1.  Path Selection for GRE Tunnel Traffic

    Posted Mar 18, 2021 07:53 AM
    Hello,
    we route traffic with GRE Tunnels from One branch over  VPNC to another Branch. We have chosen this, because we had Problems with Site-tp Site VPN.
    everything works fine this way. But the traffic is always using the good DSL line and we want to force it to only use the LTE.
    Setup: sourcenetwork---->GRE-Tunnel-IP--->System-IP---->remote System-IP---->remote-GRE-Tunnel-IP---->Target-Network.
    We tried to force it with "dynamic Path Selection Policys" with no luck. Tried to use Policys for "Source-IP to Destination-IP", "GRE-Tunnel-IP to System-IP", "System-IP to remote System-IP" and treid to filter for any GRE TRaffic, but DPS system doesent seem to recognize the traffic. DPS works fine for any other traffic. How can we filter DPS for this kind of traffic, otherwise are there any other ways to force GRE Traffic to a specific external interface.

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    Niklas Karg
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  • 2.  RE: Path Selection for GRE Tunnel Traffic

    EMPLOYEE
    Posted Mar 18, 2021 10:30 PM
    you can make use of the branch mesh feature check this link.
    https://help.central.arubanetworks.com/2.5.3/documentation/online_help/content/gateways/cfg/vpn/br-mesh.htm?Highlight=branch%20mesh

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    Any opinions expressed here are solely my own and not necessarily that of Hewlett Packard Enterprise or Aruba.
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  • 3.  RE: Path Selection for GRE Tunnel Traffic

    EMPLOYEE
    Posted Apr 21, 2021 11:01 AM

    Hi niklaskarg!

    first you need to check if the LTE link has been configured as a backup. If so, traffic will only be forwarded to this link if the other links fail. You can check this configuration in the configuration tab of the wan links within the group or at the device level.



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    Felipe Rodrigues
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  • 4.  RE: Path Selection for GRE Tunnel Traffic

    EMPLOYEE
    Posted Apr 21, 2021 11:03 AM
    Hi Niklas!

    First you need to check if the LTE link is configured as a backup. If so, traffic will only be forwarded to LTE if the other links are offline.


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    Felipe Rodrigues
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