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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.

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Using DHCP with Multi-Homed NICs

I am trying to steer away from our current manual addressing system and embrace the decades-old wonder of DHCP. In our domain and even at my home network DHCP is great - I can use address reservations to handle the need for static IP. However, in…
tacos_tacos_tacos
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Getting same IP address for cloned Virtual Images

I was trying to install 3 VM and instead of creating them individually (by using the New VM) I actually cloned them. Now after I start the VM (they are running in the bridge mode) all the VM's are getting the same IP address. I'm using auto DHCP for…
bi0s.kidd0
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Ranges for Multiple DHCP Server: Better to overlap or separate? wireless vs ethernet clients?

I know there are mixed feelings about running multiple DHCP servers on one LAN, but I'm wondering about the best way to set their ranges. In my case, I have a router which performs DHCP and also my Ubuntu Server which I use for FOG ghosting (among…
neildaemond
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Can a DHCP reservation use an IP address in the exclusion range?

Windows Server 2008 R2, running the DHCP service. DHCP Scope: 192.168.1.1 - 192.168.1.254 Exclusions: 192.168.1.1 - 192.168.1.99 If a reservation uses an IP address in the exclusion range (like 192.168.1.42), what will happen when that specific…
Massimo
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Resolving IP address conflicts on a LAN

We have our LAN set up with DHCPD providing fixed IP addresses to the systems. However we are facing IP address conflicts if some one connects a laptop and assigns an IP address belonging to another system. Is there a way to prevent this? Or ways to…
nitins
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Multiple PXE server same subnet

I've been struggling with this for some time. I have a few test machines that boot from the network, they receive the boot data from the DHCP server, this tells them who is the boot server where is the file they'll boot etc. However, I need to add a…
Termiux
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Configuring DHCP on RHEL 6

I have a fresh install of RHEL6 and I am unable to find any config file to do advanced configuration for dhclient. I am trying to find something like dhclient.conf on Ubuntu so I can modify options like supersede domains, fqdn, Maybe they should be…
frisco
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Error while checking IPv6 address using Get-NetIpAddress

Get-NetIPAddress -AddressFamily IPv6 -AddressState Preferred -SuffixOrigin DHCP | Select IPAddress I am facing the error below while executing above script. It shows the correct IPv6 configurations for some details but for some servers it is…
vicky
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What happens to DHCP sessions on client devices when the DHCP server breaks down and comes online after an interval?

Scenario: I use DHCP server to authenticate and provide specific services to my device. Everything is working well, my client device has a valid IP address 192.168.0.2 and a QoS service assigned by the DHCP server. My DHCP server breaks down,…
fortnite_v4
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Linux DHCPv6 server for PD on ppp interfaces

I need to configure prefix delegation on PPPoE. What is the best DHCPv6 server implementation for this? So far I checked the following: isc-dhcp-server - doesn't work with PPP interfaces dibbler - works, but needs all the interfaces to be present…
Karol Jędrzejczyk
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dnsmasq not responding DHCP requests that don't follow a DHCP discover

I have an instance of dnsmasq running on network namespace X, and I run dhclient (or any other dhcp client) from within network namespace Y to obtain an IP address on a given interface. The two network namespaces are on the same openvswitch bridge,…
Ricky Robinson
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Why DHCP relay offers are sent back to GIADDR and not source?

Given this network [DHCP Client] | (172.16.0.1) [DHCP Relay Agent] (10.1.0.2) | (10.1.0.1) [DHCP Server] Where the DHCP Server has a pool for 172.16.0.0/16, when the realy-agent relays the client request to the server, the…
Giovanni Lovato
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Server 2012R2 DHCP & DNS Updates

I have the following DNS settings configured on an DHCP scope: My question is, will the DNS entry be made against the DNS server that the DHCP is configured to go against or will it update the DNS server of the underlying client of the DHCP…
duhaas
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How to list DHCP options sent to a client from a DHCP server in Windows?

How does one list the options that are sent to a client from a DHCP server in Windows? Using PowerShell or the command line?
leeand00
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How to generate DHCP Decline scenario / packets

I have a dhcp packets sniffer, which needs to log if it sees dhcp decline response coming from client.I need to know the scenario where client can send dhcp decline response to dhcp server. I tried to get this reproduce by minimizing small range of…
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