DHCP is an auto configuration protocol used on IP networks.

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3
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1answer
418 views

set VM IP address to be the same every time from DHCP on CentOS 5.6

I have an issue where, each time I start my CentOS 5.6 VM, DHCP (I believe) is allocating my VM a different IP. I have the VM mapped as a Samba share in Windows 7 and this changes between 192.168.0.8, ...
4
votes
2answers
215 views

What happens when I plug a Ethernet cable?

What happens when I plug in a Ethernet cable? I want to be able to see what's happening on the Level 2/3 (I believe the protocols I'm trying to watch is Ethernet, IP (v4 and v6) and DHCP for IP ...
1
vote
0answers
211 views

how to solve the problem of network DHCP when I install Debian?

I am trying to install Debian 6, but I have a problem every time I pass through the network part, it says cannot recognize the DHCP and couldnt connect to the network, so, I tried manually to ...
1
vote
2answers
237 views

Another package being selected instead of what I am trying

I am trying to install dhcp3-server,but it is instead selecting isc-dhcp-server and its not working as per my expectations. Please help. Reading package lists... Done Building dependency tree ...
2
votes
0answers
255 views

Booting over the LAN using uboot

I am trying to boot my beaglebone over the LAN. I am able to download the Kernel uImage from the TFTP server. Here is what I did - U-Boot SPL 2011.09-00053-gb423c52 (Aug 10 2012 - 11:26:55) Texas ...
2
votes
1answer
437 views

dhclient for normal (non-root) users

Calling dhclient as root works beautifully on my debian machine. However, I would like to allow some users to execute dhclient, too. So far, I have tried these two examples: Example 1: When a normal ...
5
votes
1answer
4k views

isc-dhcp-server fails to start at boot

I have been running the isc-dhcp-server fine for quite a while. A few days back after an update, it fails to start. I found a few more people reporting similar problems but that was from 2009. I was ...
2
votes
3answers
169 views

Connecting Debian webserver to network

I am currently running a webserver with Debian 5.0.2. It has been working (more or less) fine for the past 2-3 years but recently it went down due to some power-outage. Ever since I have brought it ...
1
vote
0answers
233 views

How can I renew lease when it kept printing eth0 lease expired x seconds ago?

My guest VM cannot get an IP address from my host. It keeps printing: eth0: lease expired x seconds ago I've tried to start dhclient -r and dhclient and restart eth0 to no avail, see here for ...
1
vote
1answer
288 views

How can I resolve local IPs to hostnames? [duplicate]

Possible Duplicate: How to make a machine accessible from the LAN using its hostname I have is a simple home network with a few machines connecting through DHCP. If everyone and their ...
4
votes
1answer
11k views

Setup static IP in redhat 6

I installed Redhat 6 x86_64. I am using the Network connection screen to set a static IP address like below (I want two PC's in my house to see each other: one Redhat PC and one Mac) 192.168.0.5 ...
4
votes
1answer
945 views

How to force Debian to wait for DHCP

I am running Debian squeeze in a virtual machine (VirtualBox). The machine has two interfaces: eth0 in "Host-only" mode so that the machine is accessible from the outside; and eth1 in "NAT" mode so ...
2
votes
0answers
311 views

How to configure dhcpd to register ipv4 with bind while having static ipv6 addresses?

I have IPv6 configured on my local network via radvd; it advertises a routable IPv6 block, that all the machines auto-configure.s I have IPv4 assigned to a NAT'd block via dhcpd and that updates ...
3
votes
1answer
941 views

Is there anything wrong with using dnsmasq as a dhcp server instead of isc-dhcp-server?

So I've configured my home connections to work with dnsmasq since it bundles a dhcp server with it and is quite nice to set up. There is another package - isc-dhcp-... that also does this and perhaps ...
5
votes
4answers
444 views

Automatically acquire new IP address in new network

I'm running a Centos virtual machine on a laptop using a bridged network connection to avoid double-NAT issues, with the address assigned via DHCP. This works fine until I move the laptop to another ...
3
votes
1answer
452 views

PPTP with dhcp only for clients

I have a local network at home with a router and a small server. The router manages the local network (DHCP, etc) but does not support PPTP. On the server (Ubuntu 12.04) I set up pptpd and this is ...
2
votes
1answer
2k views

u-boot disable DHCP requests with setenv

I am trying to disable the DHCP requests after the Kernel was loaded. Using freescale imx25 dev-board in standard config. In u-boot, I find two lines ip=dhcp: MX25 U-Boot > pri bootdelay=3 ...
3
votes
1answer
693 views

Run a command after acquiring IP address

I would like to run the command Urlsnarf -n -i p33p1 >> file when the p33p1 network interface gets its IP address. Initially I tried to run the command at bootup by adding the a crontab entry ...
1
vote
2answers
2k views

Setting up ad-hoc in Debian with DHCP?

I made a quick search and found a doc that showed me a way to setup ad-hoc. Only problem is that I need this to work with my phone (WP7) and I'm not able to set a static IP on the phone so I need the ...
1
vote
1answer
834 views

Losing wifi connection to access point after a few minutes (hostapd, dnsmasq, iptables)

I'm using a laptop as a wifi access point. Since this laptop has the proper hardware, I was able to use hostapd. I wanted to use DHCP and iptables/NAT forwarding instead of a bridge to have more ...
5
votes
3answers
9k views

How to find out if Ubuntu is using DHCP (Ubuntu 12.04 LTS GUI)

How can I find out if my IP address is DHCP, Fixed or Dynamic? I need to tell my network administrator what the IP address is, that my Virtual Machine is using. I know the numbers, but I don't know ...
1
vote
2answers
419 views

Force usage of DNS server provided by DHCP?

I got a preconfigured debian image that gets it's network configuration by DHCP, however the DNS server is/was fixed to 8.8.8.8. This was configured using /etc/resolv.conf, so I deleted all the ...
3
votes
2answers
6k views

dhcpd: any way to check dhcp pool status?

Once dhcpd (IPv4) is started, is there any way to check its internal pool status? e.g how many addresses are available? I checked man(8) dhcpd, there's no signals/files available for that info.
4
votes
1answer
2k views

dhcp: Host name lookup failure

I changed configuration of /etc/sysconfig/network-scripts/ifcfg-eth1 and used ifdown and ifup to reset it. Then used ifconfig eth1 dhcp start it does not work and say:dhcp: Host name lookup failure. ...
2
votes
2answers
1k views

How to set dhclient options for Networkmanager

I'm trying to modify the domain search order that is obtained via DHCP a la dhclient.conf: append domain-search "example.com"; I'm using Fedora 17 (beta) and it uses NetworkManager. It builds a ...
3
votes
1answer
2k views

DHCP server: offer different subnet addresses for different interfaces

I'm running Ubuntu 10.04 on my home router which has multiple network interfaces. I have dhcpd configured to provide addresses from 192.168.1.0/24 subnet on certain interface. However, I'd like to ...
3
votes
1answer
5k views

VirtualBox guest using Bridged networking unable to obtain DHCP address

I have a computer, called Loki, that works as a virtual machine host and DHCP server. The DHCP daemon is listening on port eth0. Part of /etc/dhcp.conf: subnet 192.168.13.0 netmask 255.255.255.0 { ...
3
votes
1answer
602 views

configure dhcp client without accepting nameserver entries

I am trying to configre my openSuSE 12.1 machine as DHCP client, but especially do not want it to set the name server entries to /etc/resolv.conf it has got from DHCP server. Can I do it on the ...
2
votes
1answer
529 views

PXE boot chaining to hardcoded TFTP server?

My existing network environment provides the following: DHCP server that sends PXE clients to a particular TFTP server TFTP server with SYSLINUX "pxelinux.0" file for booting The SYSLINUX ...
4
votes
1answer
3k views

QEMU-KVM and internal DHCP server

I have set up a few soon-to-be production VMs running on QEMU-KVM on Ubuntu 10.04 LTS. As for networking, I chose the "NAT" option in Virt-Manager and each VM now gets an IP address 192.168.122.x ...
1
vote
1answer
245 views

resolv.conf + PXE server + kickstart files

I use PXE server in order to download kickstart and to install Linux. After installation I saw that /etc/resolv.conf was created with the IP of the PXE server. Why there is PXE server IP address in ...
2
votes
1answer
3k views

How to disable DHCP (static IP)?

If I want to set my Slackware machine to have a static IP assigned from the router, how can I do so? I assume I have to disable DHCP then edit something to set the requested IP, but I'm not sure ...
2
votes
2answers
10k views

Debian dhcpd “No subnet declaration for eth0”

I am trying to set up a pxe boot server on a Debian 6.0.3 Squeeze machine that gives images of PLoP Linux. I was following a tutorial from ...
1
vote
1answer
514 views

pxe boot: problems with /etc/resolv.conf

I'm pxe booting a node (Ubuntu 11.10). The image of the node is created with debootstrap. Works great. Everything is loaded. When I login to the node I see that /etc/resolv.conf is empty. In the base ...
1
vote
1answer
418 views

Linksys WAG200 DSL/Router combo with cable modem? [closed]

I have a Linksys DSL/Router combo. It was previously used for my DSL connection. I switched to a cable connection now, using Motorola cable modem. Is it possible to create have the cable connection ...
6
votes
3answers
12k views

Why are my two virtual machines getting the same IP address?

I have two virtual machines both running on a Linux host (Fedora 16). I set both adapters as attached to NAT. When I boot them up they both have their default gateway set to 10.0.2.2. They also ...
1
vote
2answers
2k views

Why does only one network adapter ever get DHCP IP address?

I am using a Panda Board which is running a build of Angstrom. The Panda Board has an in build Ethernet port and this is working fine, getting a DHCP address successfully. I am going to be housing ...
3
votes
2answers
1k views

DHCPv6 prefix delegation server for linux?

What linux DHCPv6 client can I set up so it requests a prefix on one interface and then on all the other interfaces it will give out addresses (or if requested, a smaller prefix delegation)? It would ...
3
votes
5answers
3k views

How to overcome libc resolver limitation of maximum 3 nameservers?

Suppose I work in environment with number of domain changes and slow propagation. I want to test domain configuration immediately after setting change but the propagation is slow. So I want to add ...
2
votes
1answer
751 views

How to setup DHCPD on two interfaces (Angstrom)

I have an embedded system running Angstrom just fine. This platform has multiple uses, one of which is to act as a home router, so it has wireless and wired network interfaces, which work correctly. ...
2
votes
0answers
2k views

Debian Wheezy netinstall can't configure DHCP

I am reinstalling my Debian system with the Wheezy netinstall image on a USB drive. I have a wireless router that also comes with ethernet ports, so I could either connect to my LAN via wifi OR ...
4
votes
2answers
649 views

How to configure Linux to use DHCP or static IP depending on presence/absence of DHCP server?

I would like to configure a network interface to make use of DHCP if a DHCP server is present on the network during boot, but otherwise default to some default static IP address.
2
votes
2answers
3k views

Get client hostnames from DHCP

I have a voyage 2.6.38 machine running DNSMASQ for a DHCP server and I would like to get the hostnames of the clients that acquire DHCP leases. How would I go about doing this?
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0answers
278 views

Solaris can't reach DHCP server with VMWare Player

I've got a very creepy problem. 3 days ago I installed some Windows 7 updates. After that my Solaris network has stopped working. I'm working at VMWare Player with OpenIndiana. Everything was okay ...
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0answers
946 views

problem dhcp3-server ubuntu server 11.04

I installed dhcp3-server in ubuntu server 11.04 apt-get install dhcp3-server However, an error message during installation: Traitement des actions différées (« triggers ») pour « man-db »... ...
2
votes
1answer
499 views

Is it possible to use Internet Connection Sharing with DHCP?

I know it is possible to share an internet connection with another pc using ip-forwarding and masquerade. Is it possible to set up the sharing computer as a DHCP server, so the settings (ip, gateway, ...
3
votes
1answer
887 views

Two IP addresses assigned to the same machine?

I seem to be using two IP addresses on my PC. I use DHCP to get an IP address and then I statically set an IP address and activate it. ifconfig says that I am using the address given by DHCP but I am ...
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0answers
451 views

Network fail on FreeBSD: Ping to router fails, but router believes computer is connected

I have a TP-Link TL-WN851N wireless adapter, which is based on an Atheros device. When I attempt to connect to my WPA2 wireless network, ifconfig wlan0 tells me that the connection is 'associated'. My ...
1
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1answer
447 views

What is supersede in a DHCP config?

E.g.: what does supersede domain-name "SOMETHING.COM FOO.ORG"; exactly mean?
3
votes
2answers
2k views

How to request a hostname from a DHCP server on Ubuntu?

I have an Ubuntu 11.04 server virtual machine. I would like to request a specific hostname from the DHCP server at the office. Since I don't run it often, the IP changes nearly every time that I boot ...