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Questions tagged [dhcp-server]

A DHCP server is a program to hand out Dynamic Host Configuration Protocol leases.

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Disable DHCP in Speedify connection sharing

I'm enabling speedify connection sharing by setting ENABLE_SHARE & SHARE_INTERFACE in /etc/speedify/speedify.conf, but I'm getting DHCP server on that interface after that. I would like to use ...
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How do respond to BOOTP requests using the TFTP daemon with Fedora?

I'm trying to boot a few embedded machines over an RNDIS network link (USB) and I can't seem to get the TFTP server daemon to respond to the BOOTP requests. I can see the BOOTP request packet being ...
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Unable to connect to internet in Kali Linux 2024.2 after the error "Your Network is probably not using the DHCP protocol."

I can't connect to my internet in Kali Linux. I installed Kali on a Virtual Machine using Oracle VM VirtualBox. During the installation I encountered the error: "Your Network is probably not ...
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Basic kea-dhcp4 server setup failure, likely caused by wrong config file

Setup Intended setup: <router>----ethernet cable ---<linux PC> Router IP: 192.168.1.1 (DHCP relay, DHCP Server IP: 192.168.1.2) Linux PC (hosting the server) Static IP: 192.168.1.2 OS: ...
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dhcp6 server config problems when match if option dhcp6.vendor-class

The complete content of the client's Vendor Class data is as follows: Vendor Class Option: Vendor Class (16) Length: 38 Value: 000001570020505845436c69656e743a417263683a303030... Enterprise ID: Intel ...
Kang Zayn's user avatar
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How can an inactive reserved IP address be used by another device on Windows server? Shouldn’t it be reserved?

I freshly set up DHCP server on Windows Server 2022 and create in advance IP reservation for devices. At this stage, all devices concerned by this reservation are not yet connected, so IP reservation ...
user1903961's user avatar
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Trying to run Pi-hole as a DHCP server in Docker but lighttpd service conflicts on port 80 with OctoPrint

I need help setting up Pi-Hole in Docker running alongside OctoPrint in Docker. I did the initial setup for Pi-Hole in Docker: Pulled the Pi-Hole container Ran the following bash script: #!/bin/bash ...
Gigoiy's user avatar
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DHCP server clock isn't sync with current date; would it affect leases with a 0 (infinite) duration?

I have a question regarding DHCP server where the clock of the server isn't set to the current date? All the leases are set to infinite, now when the DHCP server time is synced using NTP to the ...
Goldy Tomy's user avatar
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isc-dhcp-server configuration issues

I use Debian as a router and use dhcpv6 server on ens19 to get the IPv6 address. Now I want to use DHCPv6/SLAAC to assign IPv6 addresses to other devices on ens18. But dhcpd6.conf confused me. The ...
Karmylr's user avatar
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Raspberry Pi DHCP server loses its static address

I am using a Raspberry Pi 3B running Pi-OS 10.13 (kernel 5.10.103-v7+). I am running bind9 to provide DNS services for my LAN and isc-dhcp-server to provide DHCP services for my LAN. The Pi is ...
David C.'s user avatar
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Linux dnsmasq and Windows

I have a Pi Buster OS (debian variant) in which I use dnsmasq and it is configured as a DHCP server. I have Pi connected to laptop like a null mode. When Pi starts up, it is all good and PC soon sees ...
xXCodeMonkeyXx's user avatar
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Podman container not getting ip from macvlan DHCP, what is wrong with my config?

I'm not sure what I'm doing wrong. I know my DHCP server is running and working, I'm giving out IPs to other non-macvlan network devices... basically everything connecting to my wifi AP. What's wrong ...
Justin808's user avatar
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Connect a Label Printer via LAN Port directly to PC in Windows 11

The problem: I have 2 identical Label printers RP410. If I connect them via USB I can be lucky if both are correctly installed... but most of the time only one USB virtual printer port is visible (...
Toaran's user avatar
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Is DHCP server started and running?

I'm using Windows 10. I need to figure out whether a DHCP server is started and running. I used ipconfig /all command and the output says that the DHCP Server is 192.168.4.1. I don't know if that ...
zzzhhh's user avatar
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How can I overwrite the default gateway which radvd is advertising

I have flat network with 7 nodes, one of the nodes act as the DHCPv6 server and also runs radvd. When used like that, radvd will use the helper node (local-link) IP as the gateway when sending the RA. ...
Rabin's user avatar
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Windows server ipv6 dhcp

I'm sorry but i'm stuck since a lot of time now. I tried to make a scope for ipv6 at my home, i have a windows server 2019 machine that manages a lot of things. I don't understand why but i can't have ...
Vonkel.'s user avatar
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dhcpd leased a permanent address - why?

I'm using isc-dchp-server on my home network. Today my only desktop client wasn't able to recieve an IP address from the dhcpd server, which is strange because it has a reserved address in dhcpd.conf: ...
Paleee's user avatar
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Is it possible to force the use of DHCP on Wireless connections? (i.e. not on Wired ones)

I have an Asus router AC87U. Is it possible to block wireless connection for devices that are configured with a static IP while still allowing LAN connections for devices that are also configured with ...
Amit G.'s user avatar
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Is there a chance for a laptop with a static IP to get connected to a random Wifi network?

Is there a chance for a laptop with a static IP to get connected to a random Wifi network? For example: a laptop is configured with a static IP address of 192.168.1.5 and attempts to connect to a ...
Amit G.'s user avatar
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Resolving private ip using device name/hostname

I am programming for a raspberry pi headless setup and I and my cross-compiling toolchain ssh into it very frequently. The device name it registers with to my wifi router is "rpi" and ...
Rajat Mondal's user avatar
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Deploying dhcp-server on router: is netplan involved?

I have a PC that acts as my home router. It has a NIC to the WAN. It has a NIC to the LAN. It has a NIC to the WAP. It also has a bridge that spans the LAN/WAP. Now, I want this router to dispense ...
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Disable another DHCP server

I'm using a home router with several devices connected to it. DHCP area is something like 192.168.2.50 to 192.168.2.150. Default gateway is 192.168.2.1. However, when I connect to the network, I was ...
EYO's user avatar
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Determine/Configure which IP address gets offered next by a DHCP server?

I need a way to determine the next IP address a DHCP server will offer. RFC 2131 states: Each server may respond with a DHCPOFFER message that includes an available network address in the 'yiaddr' ...
Fandi's user avatar
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How to make DHCP clients prefer IPv4 DNS

I have a SOHO network with a split DNS configuraiton, and I have configured my router's (a Huawei H122-373) DHCP to provide my DNS as the primary DNS. However I have no control on the DHCPv6 of my ...
Hugal31's user avatar
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Cloned Ubuntu VMs in vSphere get same IP, despite resetting /etc/machine && /var/lib/dbus/machine-id

vSphere 7.0 + Ubuntu 18 / 20 (tried both) I am trying the steps from this blog post: https://blah.cloud/kubernetes/creating-an-ubuntu-18-04-lts-cloud-image-for-cloning-on-vmware/ I also tried this ...
KidACrimson's user avatar
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Will Multiple Routers (Using Split-DHCPs for IP grouping) for Smart Home separation cause problems?

I'm reconfiguring my home Wi-Fi & I'm trying to find the best way to deal with my Smart Home devices. I have ≈70 Smart Home devices, from a Google Home Mini in each room, Smart thermostat, smart ...
LostOnTheLine's user avatar
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Issues trying to set up a Windows 10 PC as a DHCP server

I have a situation where I have a Windows 10 PC that is acting as a DHCP server on a private network with no internet connection. The PC has a second ethernet adapter that is connected to the internet ...
larrycook99's user avatar
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Linux Router Middlebox Failing to Initialize Internet Connection

I'm trying to configure a Linux machine as a "middlebox router" that allows a connecting client machine to use the internet connection of the machine itself. It has two physical ethernet ...
RoboBear's user avatar
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2 votes
1 answer
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ISC DHCPD: Dynamic IP Range for all Members of Class matched by Hardware Address

I have a DHCP server (Version: isc-dhcpd-4.3.5) running on Debian and managing multiple subnets, all running on virtual interfaces eth1:1, eth1:2, etc. over the same physical interface eth1. All ...
sge's user avatar
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How do you view DHCP servers within VirtualBox?

I set up a DHCP server within VirtualBox long ago and I wish to remove it. The VBoxManage dhcpserver does not have an option to list the servers -- only remove, add, or modify. I can't "tab" ...
Johnny Cash Cow's user avatar
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how can i access device on dhcp server from outer net

i made DHCP server on rpi with following settings: for interface eth1: interface eth1 static ip_address=192.168.1.1/20 static routers=192.168.1.0 and for dnsmasq.config interface=eth1 bind-interfaces ...
Three Strikes's user avatar
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1 answer
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Virtualbox dhcp server not able to find vm to assign ip address

I have been trying to run two virtual machines using Oracle Virtualbox. virtualbox is able to assign ip address to one vm, but showing error for the second vm. Tried to get the ip address of the two ...
ccvs's user avatar
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Is it possible to configure Sonicwall TZ350 to provide DNS for DHCP clients?

I've got a SonicWall TZ350, and I've set it up to provide DHCP to a local LAN (192.168.168.X). Right now, when a DHCP client on the local lan does nslookup of another client, it fails because the name ...
Michael Kohne's user avatar
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How to disable windows desktop 10 hotspot's dhcp server?

I am connected via ethernet to a router which gives me an IP via dhcp. I want to share that dhcp of the real router via wifi of my laptop to devices around. My plan is to bridge ethernet and wifi, get ...
AmazingMiki's user avatar
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Are there no DNS entries for static pi-hole dhcp hostnames?

A pi-hole instance is also acting as the DHCP server in my network. I assigned static IP addresses for some of my devices (eg. an octopi server with Hostname "octopi" and IP address "...
Bruno's user avatar
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Hyperactive DHCP and related issues

I have a simple home network - modem --> Nighthawk router --> D-Link 24 port switch --> bunch of clients (including three Ubiquiti APs - nobody uses the router wifi at all). I put the ...
Adam Mac's user avatar
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Cannot receive IP from router bridge

I have a "router" that is basically a computer with 4 network ports and Linux Centos installed that I will be calling Centos-Router from now on. My operator cable router is configured with ...
Cidi Rome's user avatar
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Is there a way to know what public ip addresses my pc had last months or year?

Is there a way to know what public ip addresses my pc had last months or year ? Are they saved somewhere ? Thanks in advance
Liberator's user avatar
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1 answer
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DHCP Options in VMware Fusion

I tried to get my DHCP server on vmnet2 to include an option for a particular host, so I added this configuration below the "DO NOT MODIFY SECTION" block in the relevant config file (/...
Greg Schmit's user avatar
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2 answers
513 views

router is assigning a different private ip address for my intranet

I have a rog ag11000 router setup as the main router, and also have a DDWrt linksys router connected to it via lan cable and configured to work as an extender (DHCP server off). The gateway ip address ...
Edmundo Ford's user avatar
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145 views

Can a DHCP Client tell the DHCP Server not to hand him a specific IP address?

I have a device that has two ports and one always requires static IP address "X". The other port can be connected to a LAN for internet access. Is it possible that when that port is ...
heczaco's user avatar
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9 votes
1 answer
82k views

Can I configure my Windows 10 PC as a DHCP server on a local switch?

I'm creating a local network that I would like to have DHCP capability. I have a primary Windows 10 PC that will be on the local network full time. Is it possible to configure this PC as a DHCP server ...
Izzo's user avatar
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2 answers
8k views

Multiple interfaces match the same subnet - how to fix this?

I have a raspberry pi 2 with a lan interface (eth0) and wan interface (wlan0)- usb wifi adapter. My OS is raspbian. I want to use my raspberry as a wifi AP. So, it is necessary to have a ics-dhcp-...
Krechet USA's user avatar
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1 answer
546 views

Configuring DHCP for Windows 10 Network Installations

While following a tutorial for PXE booting a Windows 10 Installation Media, the requirements mention using a DHCP server to do what seems to me to be intercept the DHCP broadcast and instead assign ...
Christian's user avatar
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1 answer
810 views

How can I reserve a static IP address for my PC on a TPLINK Wireless N ADSL2+ Modem Router?

I am trying to add a static IP address for my PC. I have tried to search on Google, and I got on this page on TP-LINK official website. Unfortunately, the screenshots in the article shows a very ...
true_north_404's user avatar
15 votes
3 answers
11k views

Does a DHCP server really check for conflicts using "ping"?

I read the following excerpt in a CCNA prep book and it doesn't sit well with me: So during IP address assignment, a DHCP server checks for conflicts using the Ping program to test the availability ...
Mike B's user avatar
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1 vote
1 answer
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How should a dhcp server allocate only one ip address?

How should I configure the dhcpd.conf file so the DHCP server would allocate only one IP address from a subnet to the first VM that is connecting to the DHCP server? Thank you. Operating system: ...
Vladuhul's user avatar
2 votes
1 answer
3k views

how to setup IPv6 ULA advertisement and -DHCPv6 in home network?

I am on ArchLinux, and I am running IPv6 in my local home network. IPv6-Internet comes with my fritz.box and works well with all clients. On my home server, I set up radvd to advertise my local ULA ...
Produnis's user avatar
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0 answers
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DHCP packets cut off after configuring VLANs on switch

I initially set up my switch taking inputs from my router, modem, and all network devices... and quickly found that was a bad idea when I tested DHCP results and found I was getting responses from the ...
runelynx's user avatar
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1 vote
1 answer
2k views

Netplan/DHCP Config: Forwarding requests from one bridge port to another

im trying to configure a bridge network on Ubuntu 20.04. There are 4 ethernet ports in the brige. This is how the corresponding netplan config looks like: network: version: 2 ethernets: ...
MechaTheo's user avatar