How to create an effective route for Virtual HUB with type VPN_S2S_Gateway with out AS PATH field

Shaked Eyal 41 Reputation points
2024-11-24T10:31:37.04+00:00

Hi,
We are trying to recreate a situation we saw previously on our system, which is inside the effective routes of a Virutual HUB with Azure Firewall and Routing Intent enabled.
The case was an effective route in the default routing table we had a route with a Next hop Typeequal to VPN_S2S_Gateway, but the AS Path was empty.
What are the conditions for this situation?

Azure Virtual WAN
Azure Virtual WAN
An Azure virtual networking service that provides optimized and automated branch-to-branch connectivity.
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  1. Vahid Ghafarpour 22,290 Reputation points
    2024-11-25T03:58:16.38+00:00

    An empty AS Path typically indicates that the route is not learned via BGP (Border Gateway Protocol) but is instead manually configured, may this thread help you

    https://learn.microsoft.com/en-us/answers/questions/1524187/azure-vpn-gateway-and-azure-firewall-s2s-communica

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