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Overlapping Subnet in VNET-Peering and ExpressRoute?

EnterpriseArchitect 4,896 Reputation points
2021-01-18T12:58:41.8+00:00

Folks,

In Azure, how can we detect or know if the Subnet1 in VNET1 is overlapping with Subnet2 in VNET2?

also what would be the implication if any of the Subnets in Azure that we peered, is overlapping or the same as the onPremise Subnet after establishing ExpressRoute or VPN Gateway?

Thank you in advance.

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  1. SUNOJ KUMAR YELURU 13,976 Reputation points MVP
    2021-01-18T14:35:52.86+00:00

    @EnterpriseArchitect

    It starts giving the warning for overlap To detect if the subnet is overlapping and overlapping subnet can't be peered 57675-capture1.jpgas per attached screenshot.

    Do not overlap networks of each VNet.

    Ensure non-overlapping address spaces. Make sure your VNet address space (CIDR block) does not overlap with your organization's other network ranges

    Please don’t forget to Accept the answer and up-vote wherever the information provided helps you, this can be beneficial to other community members.

    1 person found this answer helpful.