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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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Questions on DHCP server setup

I'm fairly new to networking of this so I have a lot of questions... any help is appreciated. I'm setting up a DHCP server and I've run into a few problems... Here is my current setup: Router IP: 192.168.0.1 Router is handling DHCP I have to SSH to…
user29600
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How to configure vlans with server 2003 DHCP

How do you configure Server 2003 to handle vlans? I believe I need to use the IP Helper in DHCP, but am unsure and am unable to find a decent tutorial or guide on doing this. Can someone help me or point me to a site that has a guide for setting…
msindle
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Why some DHCP clients are not showing DNS names?

I have a Linux server running ISC DHCPd and BIND DNS. Clients that receive their IP from DHCPd sometimes seem to update the DNS with their DNS info., but sometimes not. Any ideas why this might occur?
David Mackey
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Can I just drop in a new DHCP server in place of my old one without breaking everything?

Right now, in my office, we have a Cradlepoint MBR1000 wireless router as our DHCP server. It's not as configurable as I'd like for it to be, and I need to set up a VPN, so I am considering replacing it with a dedicated box running Zeroshell. I'm…
eckza
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How do I set SBS 2008 as DHCP-server? I had the router as DHCP-server before

Until yesterday, we had no server at our network, so we used our router, D-Link DFL 200 as DHCP server. The router has IP: 192.168.1.1 and all clients has IP in the range: 192.168.1.10 - 192.168.1.20. Yesterday I installed a Windows SBS 2008, and I…
Jonas
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Does NMBD depend on DHCP?

I am trying to debug a SMB share issue on an embedded Linux setup. Before diving into source code, I want to make sure this is not a configuration problem. So here is my case: Scenario-1: dhcp server enabled by default 1- system boots 2- udhcpcd…
Atilla Filiz
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Linux DHCP Server - Interface Association

I have a question about the dhcp server on linux Basically my server has 2 interface cards eth0 : 192.168.2.201/255.255.255.0 eth1 : 192.168.4.1/255.255.255.0 eth1:0 : 10.1.1.0/24 On this server i am running the dhcpd daemon to hand out leases in…
ankit
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How to run multiple instances of dhcpd or add/remote listen interfaces at runtime?

The same network interfaces interfaces in my laptop (eth1, wifi0, br0) are often connected to different networks (home/work/university network, virtual network with Virtualbox, ad-hoc network with my laptop as router), so dhcpd can listen to various…
Vi.
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Wrong DHCP-Adress when switching VLANs

I have a problem with our fairly new kea-dhcp setup. We have a bunch of different VLANs in use for which we want to give out DHCP-Adresses. For this purpose we use a little APU-box which serves our kea-dhcp4. This APU-box has on port on which all…
paddex
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Change DHCP range and tcpip connections

I want to change the dynamic range of my DHCP server for a network e.g. it is at the moment from 192.168.0.2 to 192.168.0.100 I want to move it from 192.168.0.101 to 192.168.0.200 but I don't want to break the connections/sessions. If I have dnsmasq…
AAB
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ISC DHCP server web interface

I want to ask what web interface could be used for isc dhcp server on Ubuntu 22.04 server. I want to create dhcp server on ubuntu, I installed and configured isc dhcp but now i want to manage it from web ui(see statistics, clients, etc.). I found…
skoczo
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Getting IP address from another subnet's DHCP

As in the diagram below I have two routers on two different subnets. I connected them together but have not set static routes yet. Network Diagram However, when connecting from Access Point A's SSID, I get an IP from Router B on its network…
Reedz
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DHCP renewal can't go through because DHCP server is down

To my experience, if a DHCP client tries to renew its lease, but the DHCP server is down, and after the lease time is over, there are two possible scenarios: The client keeps the IP The client goes back to INIT state I've seen the two scenarios…
AhmedWas
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How to manually purge dhcpd.lease?

How do I manually purge ALL dhcpd.lease ? Can I just sudo echo /dev/null > /var/lab/dhcpd/dhcpd.lease ? It's a special use case of testing ground; we have an isolated LAN for developers to do test run. And after each testing session I'd need to…
RichardLiu
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What is Option 60 (Vendor Class Identifier) used for in DHCPv4?

Currently I'm using Wireshark to analyze the DHCP process between wireless devices and my DHCP server (which in this case, is my Wi-Fi router). On all of the devices that I tested, I noticed that each device provides a 'Vendor Class Identifier' (or…
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