Tag: dhcp

DHCP Troubleshooting

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Scenario: As one of the network engineers of the network you are responsible for all DHCP related configurations. In this scenario there is one DHCP server that is configured to supply IP addresses for the 192.168.12.0/24 and 192.168.23.0/24…

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DHCP Snooping

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Scenario: For this lab you need REAL hardware. You can’t use switches in GNS3! You need at least a Cisco Catalyst 3550 switch for this lab. One of your customers is being plagued by attacks on their switched…

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DHCP Authorized ARP

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Scenario: You work as a network engineer for a Hotel offering Internet access for a hourly rate. Recently you notice that some customers have been spoofing MAC and IP addresses to get free access by pretending they are…

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DHCP Proxy

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Scenario: You used to have a DHCP server for each VLAN but this wasn’t much of a scalable solution. You decide to get rid of all the DHCP servers and install a single DHCP server in the datacenter….

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DHCP Server On-Demand Addres Pool

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Scenario: Your network has many serial links running PPP. You heard some good things about DHCP and how you can create on-demand pools using IPCP. Let’s see if it works the way you expect… Goal: Configure both routers…

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DHCP Relay

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Scenario: You used to have a DHCP server for each VLAN but this wasn’t much of a scalable solution. You decide to get rid of all the DHCP servers and install a single DHCP server in the datacenter….

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DHCP Server

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Scenario: You are a trainee and studying for your CCNA certification. Your boss asks you if you can configure a DHCP server for some wireless clients. Confident as you are you take one of your routers and start…

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AutoInstall using DHCP for Frame Relay

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Scenario: You are the network engineer at a company specialized in creating virtual worlds. The last few months the company gained quite some new customers, for each customer a new router has to be installed and to save…

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AutoInstall using DHCP for LAN Interfaces

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Scenario: You are the network engineer at a company specialized in creating virtual worlds. The last few months the company gained quite some new customers, for each customer a new router has to be installed and to save…

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