Expressroute BGP advertising issue

azure-000 1 Reputation point
2024-06-10T13:34:46.8+00:00

We attempted to configure Expressroute between our site and MSEE Circuit.

Everything seemed to go well but only the vNET for the Expressroute gateway was advertised back to our switch and not any of its peers.

I believe the issue is related to the Peering settings for the spoke networks, I would think that if the box is checked below this should allow the hub networks to advertise their routes back to our switch through the Expressroute gateway.

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Can someone verify that that I am on the right track by assuming that once the check box is checked that the hub networks should start advertising back to our on prem switch

Thanks

Azure ExpressRoute
Azure ExpressRoute
An Azure service that provides private connections between Azure datacenters and infrastructure, either on premises or in a colocation environment.
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  1. azure-000 1 Reputation point
    2024-06-17T13:04:22.4666667+00:00

    Yes the alternate networks advertised with no issues. There is still a problem however.

    Even though our networks are populating the expressroute routing tables and we are seeing the VNETS in our switch/router we still cant seem to route to any VNET in aAzure.

    Tracert fails at the switch.

    I assume the issue could be anything from the switch config on our side throug to the PEor MSEE.

    We are trying to determine where the issue could be.

    Any thoughts.

    We are using only 1 EPL but advertising 2 IP addresses over 1DOTQ to account for both connections at the partner/MSEE EDGE.

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