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Questions tagged [dhcp]

DHCP stands for Dynamic Host Configuration Protocol and is an auto configuration protocol used on IP networks and an extension of the Bootstrap Protocol.

The Dynamic Host Configuration Protocol (DHCP) is an auto configuration protocol used on IP networks and an extension of the Bootstrap Protocol. DHCP allows for computers to be configured automatically to communicate with each other over an IP network without the need for manual setup by a network administrator.

The implementation of DHCP relies on a DHCP server to hand out network configuration information to DHCP-capable clients that request an IP address (and other information required or useful in communicating with other devices on an IP network). In addition to an IP address, common configuration information served over DHCP includes a default gateway, subnet mask and DNS sever(s), though there are many more possible configurations that can be sent out using the DHCP protocol.

More in-depth detail on DHCP and its implementation can be found at Wikipedia.

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DHCP and hosting with MAMP on a network

Im hosting a small DB app on my computer, my ip is attributed with DHCP and so Im not too sure on how to provide aces to this page that im hosting with MAMP on a Mac, all computers on the network are Macs. Is it possible that instead of providing…
user28606
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Weird routing behavior between 2 Subnets

I have two Subnets and the Routing works like this: Client A can Ping (ICMP) Client B Client B can't Ping (ICMP) Client A There are no Routes manually configured in the Access Point (Google Wifi Wlan Router - hasn't got a lot of options, let alone…
Dominik
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DHCP IP address with a client specified DNS server? Is this against spec?

I have some embedded network devices that allow me to specify whether or not they use DHCP. Unfortunately, we have some clients that have less than stellar DNS servers in their networks and have caused routing issues with these devices. My solution…
Todd Brooks
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Two DHCP servers giving static addresses in a network

I have a network having two servers that are occasionally booted. I wish to maintain DHCP services even during a boot of one server. One of the servers currently has a DHCP server that gives static IP addresses. It gives addresses only to users with…
juhist
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DHCP snooping - my clients dont get ip from dhcp

Why the PCs don't get ip from Core switch Dhcp pool? without dhcp snopping there is no problem, but when i enable dhcp snooping clients stoping to get ip from dhcp. This is my topology: topology Thanks. http://uupload.ir/files/fqsd_capture.png
user2649382
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Is IP address of VirtualBox instance - in saved state - kept for it?

when a Virtualbox instance is closed with save state, does the VirtualBox program/daemon still present the instance to the DHCP daemon as working, so that the current instance's IP address will be assigned to it - when the VB instance is revived…
boardrider
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Windows DHCP server audit activation with analytical logs

I'm trying to activate DHCP server auditing logs on a Windows Server 2012 R2 using the DHCP analytical logs. Until now, I was using the former method using TXT files (see image below). This was working well but since we are now collecting DNS logs…
Michel de Crevoisier
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Link Local IP Address Method

I have a testing scenario where our device will be plugged into network without having a static IP and no DHCP server in the network. The aim is to create the scenario for the device to auto config itself to a random Local Link Address -…
Programmer
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DHCP IP assignment in dnsmasq

I have the following configuration in my dnsmasq.conf: dhcp-range=172.16.0.100,172.16.0.254,255.255.255.0,12h From range 172.16.0.1-99 we assign static IP address to important servers and from 172.16.0.100-254 we assign dynamic addresses. We…
Ev.
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Local domain access issues

I moved our DHCP from a windows small business 2008 server to our sonicwall firewall. when I try and domain a computer to the local domain on the server I get an error."That domain couldnt be found. Check the domain name and try again." What are…
ahomsher
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ISC-DHCPD classes for ZTP (with Juniper)

I'm currently trying to setup a DHCP server to use it in a ZTP environment. My first goal is to be able to upgrade my Juniper devices automatically based on the hardware. What I'm really trying to achieve is to dispatch the proper JUNOS software to…
gmazoyer
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Rogue DHCP Server

We have been struggling with a rogue DHCP server for quite some time now. Users are meant to be on a network of 192.168.10.xx with .14 as the DNS, and .254 as the gateway, but this will set users on a subnet of 192.168.30.xx with both DNS and…
Craig White
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DHCP router option disregarded by all clients

My WAN router, a TP-LINK Archer C2 doesn't have a local DNS server for DHCP'd clients so I was looking for another solution. I found the Dual DHCP DNS Server for Windows and installed it on the LAN server. It seems to work fine when I'm inspecting…
ygoe
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Configure DHCP Server in KVM Guest to provision all other KVM Guests

I set up a DHCP server in a KVM Guest inside a CentOS7 box. What I want is this DHCP Server to provide addresses to all other installed VMs and, if possible, the main host as well. The network used by all VMs is a custom conf bridged network. The…
Leo
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How do I find the name of the DHCP server when I have a statically assigned IP address in a Windows environment?

I work in an environment where we sometimes only have access to the servers and we always set up servers with static IPs. When I run our reports I need to check DHCP IP ranges and sometimes our documentation does not list the functions of all 12+…
naps1saps
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