Tuesday, August 17, 2021

GCP VLAN Attachment /29 IP assignment - 3rd IP pingable

When creating GCP Interconnect connections, once the VLAN attachments are created in GCP portal, GCP provides a /29 subnet for that connection, out of which first usable IP is for cloud router and 2nd IP is for on-prem device. The third IP in this subnet is not to be used anywhere but its always pingable from on-prem device. Any idea what this IP is used for inside GCP?



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