Notation for IP ranges that writes an address followed by a prefix length, as in 10.1.255.0/24; short for Classless Inter-Domain Routing.
Also called Classless Inter-Domain Routing.
Read more: Microsoft Learn
In the Ultra Transcenders books
AZ-305AZ-104AZ-700SC-5002V0-17.25AZ-900DP-750SC-200SC-300ALZ
Each book explains CIDR in context, with comparison tables and the common traps.
Terms in this definition
- Notation
Command-line tool from the Notary Project for signing container images and verifying their signatures, drawing on certificates held in Azure Key Vault via a plug-in.
Related terms
- Address space
The CIDR block or blocks that define a VNet. Every subnet has to fall inside it; blocks can be added, or altered when nothing is using them.
- IP access list
Only connections from the IPv4 addresses or CIDR ranges entered here are allowed. An OpenSharing open recipient accepts at most 100 entries, set up separately from the lists that protect a workspace.
- IP network rule
A storage firewall entry (
IpRules) permitting a public IPv4 address or CIDR range, for example an on-premises egress range. An account can hold up to 400; they cannot match private addresses and do not affect requests from the same Azure region. - IP space
VCF Automation provider object holding CIDR ranges set aside for VCF; organizations are given public addresses from it, and it is tied to provider gateways.
- IPMatch
An operator for WAF custom rules that compares the client's IP with a list of addresses or CIDR ranges.