Dynamic Host Configuration Protocol (DHCP) allows computers on the same network to automatically obtain a unique IP address.

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Setting the IP with dhcpcd

I have a setup where my system is in the regular home network connected to the router. The router assigns the IP to my device without issues. I would like to use the same IP every time for my device. ...
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1answer
48 views

How to see DHCP assignments in Draytek Vigor 2920 router

Web interface looks chaotic for me. Where can I see a list of computers, which had received IP addresses by DHCP?
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1answer
81 views

Windows failing to renew IP lease

Approximately a month ago I started experiencing a minor, but frustrating problem: my internet connection would drop for several seconds every two hours. My quick investigation showed that these ...
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1answer
35 views

How do I change the IP address of a DHCP reservation in Windows Server?

I am trying to change the IP address of a DHCP reservation in Windows Server but the IP address box is grayed out.
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24 views

Script to email administrator when a duplicate IP is found on the network

I know this is a bit of a custom requirement but I was hoping someone currently has (or can put together) a script that checks for duplicate IP addresses on a network (something that might occur when ...
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1answer
70 views

I have too many DNS servers configured

The OS is Win 8.1. I have my laptop connecting to my wireless router, and I have told the router to issue out DNS via the DHCP lease. The laptop is configured to use the information. The router is ...
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17 views

DLink 614+ Connect two LANs

I have a DI-Link 614 router. As WAN connection I have a LAN which has access to internet and I do not manage it. I have 2 computers (PC1, PC2) and 2 devices connected to the router. I have ...
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2answers
279 views

Can only ping on LAN, not internet

I have 2 computers running Ubuntu 12.04 connected to a router on the 192.168.3 subnet. This router is connected to another router via the first router's modem port, so the 192.168.3 router has access ...
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1answer
42 views

domain name in dhcp

My os is ubuntu and I use virtualbox and I have xp on that. now I want to set my ubuntu to dhcp server. So I downloaded isc-dhcp-server on ubuntu in configuration file i see these two line are not ...
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122 views

Re-assign IP address for VMWare image that is already running

I'm using VMWare Player. When an image running CentOS (Linux) 6.5 boots up, VMWare Player assigns an IP address dynamically (probably using DHCP) to that image. I'm assuming the IP address on the ...
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2answers
123 views

How do I get my devices to recognize the correct router and IP subnet?

The Basics Our home has a DSL line coming in to a modem on the second floor. A line then goes down to a switch/hub and through to our downstairs living room where a wireless router is set up. Up ...
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77 views

Internet slow down after Setting up Domain Controller on VM

I running Hyper-V on 12 computer and windows server 2012 on 1 computer. I set up 2 Virtual machine Domain Controller on 2 separate computer. The second one is just a failover read only DC. My whole ...
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2answers
51 views

How can i keep an entry in my routing table, even when the associated interface goes down?

I have a linux box set up as my internet router. I have the eth0 interface connected to the lan, and the eth1 interface connected to a pppoa modem and configured with dhcp to my public ip. Due to ...
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1answer
74 views

Static route set from dhcp

Does anyone know if it is possible to add static routes with dhcp? I know that there is option 121 in dhcp but I read that it can set routing via some gateway IP, and I need to set routing via device. ...
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3answers
937 views

Check if a DHCP server existing in my network using bash

using CentOS with static IP, Is there any way to determinate if a DHCP server running on the network using bash ?
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23 views

Additional ip addresses along dhcp

On windows it seems possible to add arbitrary ip addresses on the interface, but as soon as you add one, the addresses obtained with DHCP is removed. Is it possible to set static ip addresses while ...
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29 views

dhcp no lease because of not-DAD mode

My virtual machine does not receive an IP lease anymore. Manually requesting a new ip lease by 'ifdown/ifup eth0' or 'dhclient eth0' or 'service network restart' don't work either. The error is ...
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204 views

IP attributed with Microsoft Virtual Wifi Miniport Adapter

I created a "Wireless Hosted Network" using this very helpful command : netsh wlan set hostednetwork mode=allow ssid=YourVirtualNetworkName key=YourNetworkPassword (It is a very interesting ...
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2answers
347 views

Can a DHCP router with MAC address whitelist be hacked with a VM?

I locked down my whole network’s MAC addresses so that only CPU’s on the whitelist can get an IP from the AirPort Extreme DHCP server and router. Well, guess what. A Mavericks VM with a completely ...
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47 views

How to setup private network using 2 routers with the following setup, one with ddwrt: internet modem > router > router?

I just purchased a DDWRT router with ddwrt v24 installed. Now I have a regular netgear router (R6300) that is connected to an internet cable modem. Internet Cable Modem > Netgear Router > DDWRT ...
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54 views

DHCP server which only configures default gateway

I have static ip's assigned to my machines, but no default routes. I want to send only the default gateways via a dhcp server. Is that possible?
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1answer
134 views

dhcpcd overwrites NetworkManager's /etc/resolv.conf

I have an Archlinux machine. The IP is set to a fixed value, configured via the NetworkManager. When I tell the NetworkManager to connect with this configuration it successfully updates my ...
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1answer
123 views

ZyWall USG 200 assigning many IPs to one device

Running a network behind a ZyWall USG 200. Our subnet has around 100-110 devices connected at any particular time. Recently some users were having trouble with getting a DHCP address (keep getting ...
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1answer
39 views

Static DHCP with Century Link Modem

I'm currently attempting to change my IP address with my modem provided by my ISP (Centurylink). I was told because of the service I have, they use Dynamic IPs with indefinite lease time, and that ...
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60 views

why the ping doesn't get a reply?

I have an embedded board that has the CFE, a minimal loader. I have a host machine - linux FC16, where I am running a dhcpd server. My interface is p3p1. Here are the details of the ifcfg-p3p1. ...
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2answers
72 views

How to find the IP address of a router

I live in a dorm where many students have setup small wireless networks. There are two of this networks that are very close to my room as the signal is very strong. Our college uses DHCP to assign IP ...
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134 views

How to setup the DHCP server?

I am new to networking. I have a FC16 machine that has two network interfaces em1 and p3p1. The em1 is connected to the outside world. The p3p1 is the interface that I want to connect to my embedded ...
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225 views

Using DHCP to get multiple IP addresses on single NIC on RedHat

I am trying to obtain multiple IP addresses using the ISC dhclient supplied with Red Hat Enterprise Linux 5 in order to provide the IPs to multiple applications, which will run on separate virtual ...
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87 views

Relinux Live CD - waiting for network configuration

I installed ubuntu 12.04 base system via minimal ubuntu iso. I make a script to get hostname from dhcp server which explained here. It works perfect. I don't install network manager because I dont ...
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125 views

Windows 7: can I renew DHCP lease through GUI?

In Windows XP, there was a GUI option within each network interface to renew the DHCP lease of the interface. Does Windows 7 Professional no longer offer a GUI to renew DHCP? Else, how and where do ...
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68 views

ISC-DHCP stop working when an interface is down

I'm using a computer running Mageia Cauldron as a server/router. Since the default network managing tool wasn't convenient and was sometime problematic, I'm now using netifd from OpenWRT. But the ...
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1answer
121 views

How to get host-name from DHCP server via Network Manager?

I can get hostname and ip address from DHCP server with invoking the script under /etc/dhcp/dhclient-exit-hooks.d/ directory as explained here on client side . But it stopped after installed network ...
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2answers
78 views

How to know default gateway without dhcp

Sometimes i use some wifi, maybe in public places or hotels. Sometimes they do not have DHCP Server on they router, and they do not provide LAN IP Settings, and maybe they also DO NOT KNOW what LAN ...
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98 views

Network Instable Connection over LAN, Airport Express works

I just got a cubox-i4 but have a big problem with the LAN connection. It establishes and crashes again. The thing is, that if I connect it via LAN to an Airport Express (connected via wifi), the ...
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1answer
59 views

Is it possible to use DHCP to obtain default gateway and DNS server only?

I have a few VMs which I want to keep with static IP addresses. However, I run those on my laptop and frequently connect to different networks which use different default gateway and different DNS ...
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1answer
20 views

Server 2008 DHCP on a wireless adapter

We have a Server 2008 (x86) computer which acts as a server, also as a router to share Internet into multiple network segments with RRAS. Everything works fine except DHCP on a wireless adapter with ...
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2answers
64 views

With a MAC-DHCP binding at the router, do I configure the client as static?

I'm working on setting up a home web/file server together with a new-to-me Cisco router. This router does not support setting ip addresses on the interfaces, because of some peculiarities (its a ...
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83 views

OpenVPN DHCP server issue

I've worked through the tutorial listed at http://www.dd-wrt.com/wiki/index.php/VPN_(the_easy_way)_v24%2B. I have dd-wrt running on my router with the OpenVPN server daemon running. I'm running in ...
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610 views

Dnsmasq running on raspberry pi will serve non-local DNS to ethernet but not wireless hosts

I have a Linksys WRV200 wireless router. I have just added a raspberry pi, connected via ethernet, working as a DCHP server and caching DNS server. Dnsmasq also serves local domain names. Dnsmasq ...
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2answers
137 views

How to use the internet modem DHCP on a LAN created by wireless router?

My home network description: [Laptop] -> [Wireless Router] -> [Internet Modem] -> [Internet] Sorry if I'll say something noob I'm not a professional on networking. I have a LAN created by ...
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1answer
51 views

How can I point a domain at a changing IP?

So I'm running a website off my own server. I piggybacked off my dad's domain; I added subdomain, evamsharma.finosus.com, and pointed to our network IP, and set up port forwarding. But when I logged ...
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2answers
265 views

How to configure the network interface with a dynamic range of IP addresses?

I am new to networking, so please bear with me. I have two network interfaces. One network interface is connected to the external world. Another network interface 'p3p1' is what I want to use for ...
0
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0answers
348 views

iPhone self-assigning IP address 169.xxx.xxx when connecting to my slave router

My aim is to have a network configured where all devices can see and communicate with each other, all devices should have access to the internet as standard. The reason why I have decided on a ...
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177 views

Connect to Google Play via eth0 android x86

I installed in VirtualBox Android x86 4.0 for eeepc (android-x86-4.0-RC2-eeepc.iso). After installation, android want connect to play, but I haven't configured network. I press "not now". After ...
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47 views

Changing router GATEWAY IP using CLI

I'm setting up my load balance router with 3 ISPs, 2 of the modems have the same GATEWAY IP. Any idea how to change Huawei BM622i GATEWAT IP? I can't get to work using the web interface. So, ...
0
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1answer
96 views

Use a combination router/modem as a slave to another router

I've got a combination cable modem/router from my cable company. I've also got a Netgear N900 that I love. I'd like to use the advanced features of the N900 (partitioning, guest networks, print ...
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295 views

DHCP option to control interface metric

For some reason Windows is using only one interface for local network broadcasting (the one with lowest metrics). When client connects to VPN network, i want it to make new network preferred for ...
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1answer
354 views

How to load test a DHCP Server? [closed]

I basically want to test how many client requests my DHCP server can handle.Is there a simulator available to load test a DHCP server running on Ubuntu 12.10?
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1answer
39 views

Connecting 2 networks together via router

I have a small size business where we have around 22 PCs. At present, I have the internet connected directly to a switch1 (We use dedicated leased line and I have been provided with 5 static IPs by ...
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1answer
127 views

DHCP Pool Range / IP-Camera Setup

Lately I have been trying to set up a IP-Camera for friends wirelessly. I realized on their router its DHCP pool range is from 192.169.2.100 - 192.168.2.200. But when I changed the IP address of the ...