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Questions tagged [dhcp-server]

Dynamic Host Configuration Protocol (DHCP)

The DHCP service is a client/server application that allows "clients" to obtain configuration information (typically for network settings) from a "server".

Questions carrying this tag should focus on the server-side more than the client-side.

540 questions
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how to get a connection between Windows and Linux without an existing DHCP server

Scenario: In general a ubuntu machine (called server) runs in a network and gets an IP from it. Due to testing, sometimes a windows machine (client) is physical connected to the ubuntu machine exclusively. (Because the server is mounted on a car…
wenzul
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Cisco Router not displaying DHCP client hostnames

I've got a branch office configured to issue IP address from a Cisco Router (IOS 15.0). The router is successfully issuing DHCP addresses just fine. My questions is that when I issue the command "sh ip dhcp binding" it doesn't show the hostnames…
Joe Silver
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Enterprise DHCP server solution?

I have a network of about 1000 assorted devices, all of witch are running by static IP addressing. Given the size of the network and the lapse of technical advice, the addressing scheme is in chaos and there are about 14 class C subnets. I would…
Wyatt
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Create separate Network for testing purpose

I have installed Windows Server 2012 on a VM (ESXi) for testing/learning purpose and I also like to install DHCP Server as well but this will conflict with my ISP router and I don't want to disable DHCP from my router. How do I create a separate…
I'll-Be-Back
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DHCP messages in LAN

I run a Mac and release/renew my IP with: sudo ipconfig set en0 DHCP In wireshark I get the following with udp.port==67 as filter: Why are the messages sent from my computer broadcasted, but the server send them directly to me. The litterature I…
Francis9910
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Windows Server 2012 AD DC/DNS/DHCP in single server

I have to say I am not a system admin but I had to setup the development environment in my company and I ran into many issues and after searching for many hours I hope somebody can help me out here! My Setup consist of an ADSL modem/router…
Bati
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Temporary DHCP Static Leases

I want to set up a DHCP server that gives out semi-static leases. Allow me to explain. I want the server to give out static leases (I think these are also referred to as "sticky" leases) to users, but if a user has been inactive for a long period of…
Seanny123
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Using Windows Server 2008 R2 and PfSense

Hey I want to setup my personal home network so that R2 is dishing out DHCP and currently my PfSense box is doing this for me. my setup is motorola surfboard to PfSense to switch. How do I configure PfSense so it does not give IP addesses to the…
Kubie
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Windows 2008 R2 DHCP for two scope on two interfaces

I'm setting up a brand new DHCP Server over Windows 2008 R2 Standard edition server, and I'm planning to serv two differents lan with this one. Here is my configuration: 1 AD/DNS/DHCP Server with following ETH setup: ETH0 = PROD_SERVERS_LAN =…
Dr I
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Our cable modem is acting as a rogue DHCP server, even though its DHCP function is supposedly disabled

We have, for quite some time, had problems with systems on our LAN coming up "bottled," i.e., with non-functional connections. I recently noticed that the assigned IP addresses looked like they were colliding with fixed IP addresses on the LAN,…
hbquikcomjamesl
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How does a client find the DHCP server on network if DHCP is disabled on the router?

I am an acting, self-taught network administrator, so please excuse me if this should be obvious. I have a Windows network with domain controllers running DHCP. My gateway/router is a Meraki MX67 that is also running DHCP. I want to disable the DHCP…
David Christian
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What is default IPv6 configuration on routers

I've just started learning IPv6. I have a router running OpenWrt and I would like to configure it to use IPv6. As I know this address can be assigning to a client with or without DHCPv6 server. Do you know what is the default configuration on…
tomi7654
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DHCP Server received Discover mesage but not responding with Offer mesage

I using DHCP (windows server 2019 standard) for multiple scopes witch DHCP relay is Cisco 3750 L3 switch. For the first time, it's working normally but after about 8 hours the DHCP server received discover message but not response with offer message…
Khoa Le Anh
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Hosting Azure Active Directory and retiring on-prem AD

Background:- We have Office 365 licenses and all employees have their individual mailboxes. Currently there is one Domain Controller, which not only hosts Active directory but also acts as DNS and DHCP Server. Intent is to retire on-prem AD and use…
Chetan Kumar
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Different lease duration for dhcp clients

Is it normal in Windows implementation of DHCP Server and DHCP Client that some clietnts gets strange long lease expires time like 15 days? ,,Lease duration for DHCP clients'' setting in DHCP Server is set to 2 days.
sokar
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