Category Archives: IP SUBNET

DHCP – How DHCP works.

The DHCP server’s most fundamental task is Providing IP addresses to clients. DHCP uses three different address allocation mechanisms when assigning IP addresses: Manual Allocation: The administrator manually assigns a pre-allocated IP address to the client and DHCP only communicates the IP address to the device. Automatic Allocation: DHCP automatically assigns a static IP address permanently to a device, selecting it from… Read More »

DHCP Lease Periods Explained

Configuring DHCP Lease Periods on Cisco router. What Is DHCP Lease Period? The DHCP (Dynamic Host Configuration Protocol) lease period refers to the length of time that a network device (like a computer, smartphone, or any other connected device) is allowed to use an IP address that’s been assigned to it by a DHCP server. This concept is… Read More »

CIDR Explained with Examples

What Is CIDR? CIDR (Classless Inter-Domain Routing) was introduced in 1993 (RCF 1517) replacing the previous generation of IP address syntax – classful networks. CIDR allowed for more efficient use of IPv4 address space and prefix aggregation, known as route summarization or supernetting. CIDR introduction allowed for: CIDR allows routers to group routes to reduce the bulk of… Read More »