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

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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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8 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
58 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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1answer
5k views

PC does not get ip address from router using wired connection

I have an ASUS WL-520GU wireless router with four LAN ports. When my laptop is running Windows 7, and I make a wired connection from the laptop to the router, the laptop does not get an IP address. ...
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2answers
3k views

Android Not Resolving Internal DNS on Home Server

I have a home network with a Ubuntu Server that handles all DNS and DHCP requests (I have disabled these services in my wireless router). My DHCP server (ISC-DHCP-Server) hands out IP addresses to our ...
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3answers
136 views

Reserving DHCP address

I am working in a serviced office, where I do not control the DHCP server. I have more than 3 machines that I need to have the same IP address after they get assigned. How would it be possible for me ...
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1answer
2k views

Running a DHCP Server on DD-WRT in “Repeater Bridge” mode?

I am currently running a Linksys WRT160N router on DD-WRT set up as a "Repeater Bridge". It currently serves to rebroadcast my Virgin Mobile MiFi's WiFi through this router, hence broadcasting a more ...
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4answers
2k views

Network interface/dhcp problems ubuntu with kvm and network bridge

I have a ubuntu system running 12.10 I am using KVM and have configured a bridge for the virtual machines, which is using nat forwarding. I am having problems with the connection dropping out ...
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3answers
2k views

No internet connection when connected via wi-fi, but fine via ethernet (DD-WRT)

I just bought a new router and installed DD-WRT on it. When I connect to the router via wi-fi, I cannot get an outside internet connection (and in fact, can not connect to the router admin interface ...
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1answer
25 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
17 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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4answers
1k views

IP Conflicts via DHCP on Home Network & Multiple Router Setup

I currently have a Netgear ADSL modem/router connected to the telephone master socket, which has DHCP enabled. I then have a wired connection to an Apple Time Capsule in Bridge Mode, which is a ...
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11 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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2answers
28 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
1k views

Configuring default gateway returned by dhcp server

I have a machine which connects via ethernet to a private LAN, and wireless to a network which provides internet connectivity. The private LAN uses a wireless router to perform DHCP. The problem is ...
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4answers
2k views

How to skip pushing the default gateway via DHCP in OpenWRT?

I have a router with OpenWRT that I want to resolve IP addressing with DHCP without setting a default gateway. I have added a DHCP-Option parameter with value 3,0.0.0.0 that is supposed to set the ...
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1answer
26 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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1answer
6k views

Arch Linux: eth0 no carrier - network fails at boot

The problem My computer is connected to a network where dhcp is required. So my network configuration in /etc/rc.conf looks like interface=eth0 address= netmask= broadcast= gateway= My deamons are ...
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2answers
4k views

Will disabling NAT on my wireless router cause a performance hit on my DSL router?

I have a Thomson TG508v2 router/modem and a brand new AirPort Extreme connected to it. At first, I set the AirPort Extreme to "share a public IP", which enables DHCP/NAT. Everything works great but I ...
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1answer
3k views

What causes my desktop computer to lose its internet connection on a wired LAN?

Please help! I am at my wits end. I am by no means a techy, but I feel I am intelligent enough to read these forums and follow directions, but I digress... My issue, I have a very simple home network ...
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5answers
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How can I stop Mac OS X overriding my hostname when I receive a DHCP request on Snow Leopard?

Whenever I go on a network where the DHCP server assigns hostnames then it overrides the settings I've set for my hostname on my Mac in the "Sharing" section of System Preferences. How do I stop this ...
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2answers
3k views

How to disable disclosing a computer name to a network?

I don't use (I've disabled it by normal means and blocked the ports with personal a firewall) Windows Networking (CIFS aka NetBIOS aka SMB etc), but my PC has a name as it seems to be mandatory in ...
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36 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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31 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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65 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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43 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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1answer
50 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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32 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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52 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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23 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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2answers
35 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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34 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
42 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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4answers
28k views

How to find my DHCP server IP address via a command prompt in Windows?

Linux has easy commands to find the DHCP server IP address via a command prompt. Is there anything for Windows?
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3answers
92 views

Sharing Internet connection across LAN

For the life of me, I can't figure this out. I had it working once in my network, but never after that. I have two machines A (Win7-x64) and B (WinXP-x86), connected through TP-Link's TL-MR3420 ...
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1answer
18 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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1answer
176 views

Change IP based on AP

I connect to 8 different Access Points, each with a separate subnet and each location does not allow DHCP. I want my computer to change my IP address to an assigned IP address per location based on ...
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2answers
30 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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2answers
62 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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27 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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0answers
150 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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1answer
38 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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3answers
2k views

How to use dnsmasq with DHCP-assigned DNS servers?

TL;DR version: How do I configure dnsmasq to fall back to the DNS servers pointed to by the DHCP server on my LAN, to enable switching wireless networks? On my developer laptop I've recently started ...
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2answers
86 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
212 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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1answer
94 views

Why does my (home) router append a DNS suffix?

I wonder if any other people have come across this. I've rented rooms in two houses this year, and they both have Sky (a UK ISP) Broadband routers. For some reason, the router I currently use hands ...
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126 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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442 views

How to configure AirPort Extreme as the DHCP/DNS/NAT server where DSL modem/router does them?

I have an AirPort Extreme BS and a modem/router (ISP's NetMaster). I want to host my own websites from my Mac Mini with OS X Server. At the moment, ISP's router is the DHCP/DNS/NAT server, and AirPort ...
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0answers
27 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, ...
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1answer
116 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?