| Subject | English | French |
| commun. | classless inter-domain routing | routage interdomaine sans classe |
| comp., MS | Classless Interdomain Routing An IP address and routing management method that allocates IP addresses in a way that reduces the number of routes stored on any individual router, while also increasing the number of available IP addresses. CIDR replaces class-based IP address allocation | routage CIDR (Classless InterDomain Routing) |