DHCP is an auto configuration protocol used on IP networks.

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Arch Linux starting Wireless connection shuts down wired connection

When Im starting the wireless connection via SSH, as soon as th dhcp starts the connection(wired) to the computer stops working and the computer is only available on Wifi. Is that normal. Im using ...
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43 views

WLAN: get info about AP

I am troubleshooting WLAN connections from my laptop. I have several possible WLANs to connect to. When connection is established, I am unable to see to which AP I am connected. In my ...
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446 views

Connected to WiFi, no internet access - Linux Mint

I connect to a my AP and I get a message "Connect to ..." but I cant access the internet, nor ping anything exept my gateway. I tried changing the DNS Servers to google ones but with no use. Any ...
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1answer
155 views

Whonix no DHCP offer received

Hi I'm on the last step of setting up Whonix physical isolation and can't get the gateway to see the workstation. I'm confused because on the page linked below where it says 'Host Network' and 'NAT ...
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1answer
31 views

Measure time to get DHCP address?

Is there any tool or way to measure how much time your DHCP router needs to give you IP address? I'm sure that there is something, as it's pretty important when debugging network.
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72 views

What should be the right dhcp configuration for generating a new network over eth0?

Even not under a real server like scenario, I'm testing with dhcpd for learning and practice purposes. I'm using Ubuntu 12.04 LTS. I want to offer a network by my eth0 interface. I receive ip and so ...
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2answers
1k views

FATAL: Module p80211 not found. RTL8192CUS WLAN regression under antiX 13.1 (Debian Wheezy)

The problem concerns a driver support regression for the RTL8192CUS WLAN chip under antiX 13.1, a Debian Wheezy (stable) based distribution. The chip actually resides in a Edimax EW-7811Un 802.11n ...
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1answer
196 views

Executing a command after eth0 is available, but before DHCP client

I'm running Debian Weezy on an ARM board. Right now I'm working around an issue with my network driver by running an ethtool command that limits the Ethernet interface to 100 megabit. However, the ...
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1answer
259 views

Can I connet to internet with one PC and give over LAN (switch) internet to other PC?

I currently have one computer (it's called pc08 with Linux Mint 15) that is connected to the internet via WLAN. Now I want to install Arch Linux on another computer (lets call it archiso). I only ...
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2answers
494 views

keep losing IP with dhcpcd

I have an Arch Linux install in a VirtualBox VM, and as I'm working all of a sudden, it will lose it's dynamic IP address. When this happens, if I check on the status of the dhcpcd service it says ...
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1answer
125 views

Determine the interface which was used for booting via PXE

I have a linux machine which was booted via PXE. Can I determine the network interface which was used for booting?
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3k views

Command to list assigned dhcp addresses

Is there a command I can use to ask the dhcpd server which addresses have been assigned?
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56 views

What is the pathname (the directory and file name) of the configuration file used for the DHCP client (not the server!)

(This question refers to the IPv4 client, not the IPv6 client.) (Hint: configuration files are kept under the directory /etc.) It is for a school assignment. I have to use man pages to find it. I ...
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1answer
362 views

How to force PC to release IP?

I'm working on BackTrack and I want to give a fake IP from my DHCP server to another PC. I'm trying to make that Windows PC run the command: ipconfig /release, but without remote access. I don't want ...
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2answers
236 views

Prevent dhcpcd from setting hostname

How to prevent dhcpcd from setting hostname got from server? Change of it breaks a lot of things (including X session). My current distribution is Gentoo, init system is systemd and dhcpcd is spawn ...
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1answer
1k views

Can't ssh to beaglebone?

After I did: route add default gw 192.168.7.1 I also changed /etc/resolv.conf: nameserver 192.168.7.1 in order to share internet between Ubuntu in VMware. I've got internet working but after a ...
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1answer
614 views

What is the simplest way to connect to wireless on a Debian system with nothing but essential?

I have a Debian Jessie system which, for reasons unrelated to this question, has nothing installed but the set of essential system packages. What is the simplest method for connecting to a wireless ...
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1answer
1k views

WiFi / WLAN: WPA2 authentication appears to be successful, but dhclient won't get a response

I'm trying to use a USB WiFi adapter to connect to a wireless router. I assume the adapter is brought to life with the correct driver, because # iwconfig gives some reasonable output: wlan0 IEEE ...
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239 views

Can't connect unsecured wifi from Wicd or terminal

I can connect without issue to WPA networks, but if I am somewhere like a hotel and try to connect to an unsecured WiFi, things hang at the DHCP part and I don't get an IP assigned. I'm running ...
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2answers
4k views

Renew IP with dhclient on different interfaces

I have two interfaces on my computer, eth0 and eth1. Both subnets have a DHCP server on them. How could I use dhclient to renew IP address for both interfaces? If I do: dhclient -r && ...
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1answer
820 views

dhcpcd can't startup at boot

when I run dhcpcd after boot everything works fine but when I try to add it to auto start systemctl enable dhcpcd@eth0.service, after each boot it's inactive dhcpcd@eth0.service loaded ...
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2answers
5k views

Unable to set hostname for use within network

I am having a lot of trouble setting up a hostname for my home server for use within my home network. My home server is running Ubuntu 12.04 LTS and all packages are up to date. Management of this ...
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77 views

DHCP configuration for iPXE

Is there a way to configure the DHCP process in iPXE? In particular, I want to configure the DHCP Discover message sent by iPXE, so that the message issued by iPXE includes more options in Parameter ...
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1answer
946 views

Could not resolve host error

I'm using Arch Linux and I have a dynamic ip address with the use of dhcpcd. I can access websites through the google chrome but the problem is that I get 'could not resolve host' error when I run ...
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5k views

DHCPD ignoring my subnet declaration

eth0, my internal interface, has a static address of 10.0.0.1. I also have an interface, p4p1, acting as my external interface. If it matters, my external interface is not physically connected and ...
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To what extent does LXC manage configuring the network interface in a container?

In the LXC config file we can specify an IP address for a container: lxc.network.type=veth lxc.network.link=br0 lxc.network.ipv4 = 10.1.0.35/16 lxc.network.flags=up lxc.network.hwaddr= ...
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134 views

Communication to device is lost when network starts on boot up?

I have an application that opens a socket on port 4444 to a device (/dev/linkToDevice). The "linkToDevice" is a link to ttyUSB0. The application is a c++ program of which is now a daemon and runs at ...
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3answers
575 views

Change default search name

My Ubuntu12 server VM is receiving its IP address from an DHCP server (actually my WLAN router called Fritz Box). Hence all domain names are resolved to machinename.fritz.box. The reason seems to be ...
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578 views

dhcpd on interface with multiple address and link labels (aliases)

I had been running a dhcp server on an old version of isc dhcpd circa 2005, 3.0 something. I just upgraded to ISC dhcpd version isc-dhcpd-4.1-ESV-R6. Before upgrading, the interface (eth0) had two ...
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2k views

Why does dhclient fail with my ISP's DHCP server on a virtual interface?

Recently I switched from a T1 to a residential cable service (Comcast). I have a virtual machine (XenServer 5.6) running Debian 6.0.6 that is acting as the default gateway for my home network, but for ...
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1answer
546 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, ...
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277 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 ...
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314 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 ...
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338 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 ...
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327 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 ...
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1answer
781 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 ...
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1answer
6k 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 ...
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3answers
189 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 ...
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269 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 ...
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1answer
403 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 ...
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1answer
20k 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 ...
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1answer
1k 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 ...
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1answer
390 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 ...
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1answer
1k 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 ...
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4answers
550 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 ...
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1answer
616 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 ...
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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 ...
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1answer
838 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 ...
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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 ...
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1answer
1k 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 ...