Friday, 3 February 2023

Static vs dynamic IP addresses - configurations

Knowledge  A static IP address is a permanent, fixed address assigned to a device on a network, rather than being assigned dynamically by a DHCP server. This allows for easier network administration and can help with specific applications such as remote access or website hosting. DHCP stands for Dynamic Host Configuration Protocol. It is a network protocol used to dynamically assign IP addresses to devices on a network. DHCP allows for automatic and centralized management of IP addresses, reducing the manual effort required to configure devices on a network. It helps ensure that each device has a unique IP address and eliminates the risk of IP address conflicts.  Skill DHCP from a router Set a simulation environment similar to the below Assign  the IP address On the router enter the commands below. Here ip address 192.168.0.1 with default subnet mask 255.255.255.0 has been assigned to interface gigabitethernet 0/0/0 Configure DCHP pool Here the DHCP pool has been named "FOC" the network address has been assigned to the pool "192.168.0.0" and the default router: "192.168.0.1" . The default router address will give the default gateway address to the devices requesting a DHCP ip address. The final commands exclude an IP range. This range is outside the DHCP pool so our first host should connect with 192.168.0.11 Testing On one (or all the PCS) change the IP configuration to DHCP. If successful your first device should be given 192.168.0.11 and so on. Video run through DHCP from a server Build a topology similar to the below. Configure the router Set the ip address of the router. Here we have assigned IP address 192.168.0.1 to interface gigabit ethernet 0/0/0 with the default subnet mask of 255.255.255.0 Server DHCP configuration Turn the DHCP service on. Give the pool a name, here it is "FOC". Set the default gateway which is the router address (192.168.0.1) and the DNS server we will just use this server address for now. Click Save or Add. Assign an IP address to the Server In the interface section give the server an IP address of 192.168.0.2 Testing On one of the PCs change the IP configuration to DHCP in order to receive an IP address, Default Gateway and DNS server address Higher thinking * Where would you see these uses of DHCP? Server use and router use? What type of network? * What devices would  you expect to see in the excluded range? * What is the benefit of using DHCP? * What are the downsides to using DHCP? * Research lease times and DHCP
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