Modifiable VCNs, subnets, and VLANs now available

  • Services: Networking
  • Release Date: Nov. 12, 2020

You can now update VCN and subnet CIDR block information after creation:

  • A VCN now supports up to five /16 CIDR blocks.
  • You can add or remove CIDR blocks from a VCN.
  • You can expand or shrink the size of CIDR blocks in use by VCNs, subnets, and VLANs.
  • There is validation in place to make sure shrinking a CIDR block will not affect an IP address that is in use.

For more information, see the documentation articles on VCNs and Subnets.