Networking :: Can't Change From Dhcp To Static Ip Address

Jan 16, 2010

Can't change from dhcp to static ip address.I've installed Oracle's version of Linux Redhat 5, but I'm having no success changing from dhcp to a static IP address. My machine is plugged directly into a Belkin router which has the IP address: I use the gui: /usr/bin/system-config-network and set the network device to dhcp,it works fine. But if I set the IP address manually, I get no internet traffic, and if I ping an internet website, "network unreachable".The installation instructions for Oracle say that they want a full domainname. I've tried This worked in the last place I did a successful installation.It was the address of my ATT router. If I plunked that into a browser, I got the router configuration.

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Ubuntu Networking :: Change From DHCP To Static IP Address?

Nov 14, 2010

Does anyone know an easy way to do this? I can't seem to figure it out.

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Ubuntu Networking :: Static IP Address And The Install Configures For A DHCP Configured Address - Network Not Starting

Dec 16, 2010

Version 10.04 LTS. Installed desktop version and network worked but I needed a static IP address and the install configures for a DHCP configured address. I tried changing to static address using the System->Preferences->Network Connections application but was unable to get the system to come up with the network up.

So I manually modified the /etc/network/interfaces and the /etc/resolv.conf files. I restart the system but when I do an ifconfig, I don't see a configured IP address on eth0 (only the loopback address). If I run /sbin/ifup eth0 everything then works fine and ifconfig shows the correct address bound to eth0.

My files are as follows:

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Networking :: DHCP Server - Losing Static IP Address

Nov 10, 2010

I have an Ubuntu Server 10.04.1 that I have given a static IP address. Every six hours or so I will lose connectivity to it and when I type ifconfig to look at the network information, it has been given an address via dhcp. If I run the /etc/init.d/networking restart command the IP address goes back to my static address and things are fine for another 6 hours or so. Here is what is in my interfaces file:

auto lo
iface lo inet loopback
auto eth0
iface eth0 inet static

This machine is also a DHCP server and I checked to make sure there are no other DHCP servers on my network. Right now my fix is to have a Cron job running that runs the reset command every 5 hours, but I would like to find a more permanent solution.

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Networking :: Enable DHCP Setting In Fedora 12 / Using Static Address?

Jan 2, 2011

My DHCP setting is disabled in fedora 12 . Previously i was using static IP address. I Want DHCP setting enable, any idea.

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Ubuntu Networking :: Change To A Static Ip Address?

Apr 11, 2010

I have followed some instructions to change to a static ip address and have now lost my connection to my router. The mistake I made was not copying the original "interfaces" file before making changes.The file originally had: auto wlan0 iface wlan0 inet (something - I thought it was loopback but didn't work when I added it).

The instruction told me to put:
auto eth0
iface eth0 inet static

Which I did, using my own ip numbers, except for "broadcast". I didn't add that in because I didn't have a clue what to put there. When it didn't work, I tried putting it back to what I originally had except I can't rememebr that last bit. I added dhcp instead of what I thought it was but this didn't work either.

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Networking :: Change Static Gateway Ip Address?

Mar 31, 2010

when I do "route -n", I got:


Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface U 0 0 0 eth0 U 0 0 0 eth0 U 0 0 0 lo UG 0 0 0 eth0

I need to change the static configuration, like I, I don't know how it got there also I want to delete from a static gateway. How can I do this?

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Networking :: Change MAC Address & Connect To A Dhcp Server Successfully

Dec 26, 2009

For changing the the mac address of my lan card( eth0) in linux fedora 9(solphur) i used this command

And i could change my mac address successfully but now i couldn't connect to my network via a dhcp server ( in configuration section of my router im going to check my new mac address (because i want to spoof) ,how i can do that?

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Debian Installation :: Xen Domu Creation With Nfs Static Address Boots On Dhcp

Dec 11, 2014

I am create Xen virtual machines.

I created a domu.cfg file with:

xen-create-nfs --ip --broadcast --gateway --netmask --nameserver --initrd /boot/initrd.img-3.18.0 --kernel /boot/vmlinuz-3.18.0 --memory 4096M --mac 00:16:3e:01:01:01 --nfs_server myserver --nfs_root /var/exports/myhost --hostname myhost

I initialized it with:

xt-install-image --cache yes --dist wheezy --apt_proxy --mirror --location /var/exports/myhost

Then I started the domu with:

xl create /etc/xen/domu.cfg -c

And I receive this message telling me dhcp is used as I specified static ip:

IP-Config: eth0 hardware address 00:16:3e:01:01:01 mtu 1500 DHCP RARP

What can I do to desactivate the dhcp client?

remark: I used this equivalent former configuration with qemu-kvm and I booted with static ip without any problem.

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General :: Fedora 7 Machine Browses Internet On DHCP / But Fails Completely On Static Address

Aug 3, 2010

I am struggling with what might be a minor problem. I have a home computer which I would like to setup as a webserver and hence give it a static IP address. It is connected to by wire to a router that is connected to the WAN via PPPOE. If I enable the network card on DHCP it works fine in browsing the web. If I now set it to static IP address it does not brown. Essentially I use the command setup to run the static IP setup. I then set my IP address to 192.168.254.X , the subnet mask and the default gateway to (this is the router connected to the WAN). I am able to ping the router, however when I try and browse on static it does not work. Your help will be most appreciated as this has taken way too long to solve and I have Googled as much without success.

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Ubuntu :: Change From Dhcp To Static Ip Addy?

Jan 5, 2011

my system is belkin router with dhcp enabled.connected are: win xp desktop, win7 netbook, ps3 and fujtisu laptop with ubuntu 10.10, advent notebook xp. right now i have everything getting its ip addy over dhcp but i want to set static ip for each machine. (so the ps3 can run dmz and ocasionally the belkin changes ip address even tho the lease time is set to forever) i can do this with the windoze machines but i do not know how to set static ip and other info for the ubuntu machine.i did search for the forum for 'static ip' but the results that appeared were nothing to do with dhcp!

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Networking :: Configure A (openSUSE) Client To Dhcp To EBox DHCP Server - Lease An IP Address

Mar 25, 2010

I am puzzled with trying to configure a linux (openSUSE) client to dhcp to eBox DHCP server. I am using dhclient to lease an IP address with dhclient eth0 -s and get a response

openSUSE11232CL1 dhclient: DHCPDISCOVER on eth0 to port 67 interval 4
openSUSE11232CL1 dhclient: DHCPOFFER from
openSUSE11232CL1 dhclient: DHCPREQUEST on eth0 to port 67
openSUSE11232CL1 dhclient: send_packet: Network is unreachable
openSUSE11232CL1 dhclient: send_packet: please consult README file regarding broadcast address.

The server reports eBox141 dhcpd: DHCPDISCOVER from 00:0c:29:3e:57:a3 ( via eth0
eBox141 dhcpd: DHCPOFFER on to 00:0c:29:3e:57:a3 ( via eth0

I interpret this as the server receives the request and the client accepting it but the lease does not last long and the connection breaks. what this could be and why the connection breaks? Or my undestanding is totally wrong on how it works and should work? And BTW, where is that README file that's referenced in the message I receive on the client?

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Ubuntu Servers :: Change To Static Ip Address?

Mar 7, 2011

Im running ubuntu server 10.10 on my wirtual mashine at home. For now i have few service installed and configured:apache with phpand mysql support,ftp,phpmyadmin.. My ip address is not static, i tryed to configure by following some guide but without success.

First i edit this in /etc/network/interfaces (changing dhcp to static

# The primary network interface
auto eth0
iface eth0 inet static


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Ubuntu Networking :: IP Address Set To Manual But Still Queries DHCP For Address

Mar 12, 2011

I'm running Ubuntu 10.10 and I'm having problems trying to assign it a static IP address. No matter what I put in the Preferences->Networking area (identifying the interface as Manual)... it still will query DHCP for an address if I run the dhclient command. I'm using to using ubuntu server where I just set the IP in the interfaces config file.

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Networking :: Static IP Address That Has A Reverse Lookup To "" And Not Email Domain?

Apr 26, 2010

I got this message on Friday from just one domain. #< #5.5.0 smtp; 554 5.5.0 Your message was considered to be spam by the FORTHnet Antispamming Policy and was not delivered to the recipient. The following spam tests returned positive for this message:FORGED_RCVD_HELO,RCVD_IN_BRBL. For further information visitWe are not a spamming community but it seems we have a statice IP address that has a Reverse lookup to "" and not my email domain. Would setting a cname -> cure this problem or are there more tricks to be performedOnce I have cured the FORGED_RCVD_HELO I can move to getting the IP removed from BARACUDA.

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Ubuntu Networking :: How To Set DHCP With Static DNS?

Aug 2, 2011

Recently, I have encountered a problem when setting my network configuration.I want to automatically get an IP address through DHCP at system startup, and this can be done by editing /etc/network/interfaces file, adding
auto eth0
iface eth0 inet dhcp
The problem is that I want to set a static DNS, but DHCP will automatically overwritten /etc/resolv.conf file.
What should I do?

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Networking :: DHCP And Static On 2 NICs

Jan 12, 2010

I have a MB with 2 NICs and on 1 I would like to have a static IP, on the other a DHCP for a local network.The problem is the DHCP provided gateway is made default vs the one for the static IP and resolv.conf is overwritten.Any suggestions how could this be resolved? I can tweak both the DHCP server settings and the box settings.

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Ubuntu Networking :: 10.04 Set To Static But Resets To DHCP?

May 21, 2010

basically I set the static ip address:

auto lo
iface lo inet loopback
auto seth0
iface seth0 inet static


Restart networking:

"sudo /etc/init.d/networking restart"

Everything is fine but 24 hours later the server resets to the DHCP address assigned to it. I have not installed any GUI im just running Ubuntu 10.04 LTS in Hyper V. After it resets to DHCP I log into it using the dhcp address and reset the networking service "sudo /etc/init.d/networking restart". It goes back to the static IP specified in interfaces. I have rebooted several times but every 24 hours it resets.

BTW - Before someone asks about iface seth0 instead of it being iface eth0. It is a Hyper V module running.[URL]

Also FYI-
# ps -ef | grep dhclient
root 1234 1 0 May19 ? 00:00:00 dhclient3 -e IF_METRIC=100 -pf /var/run/ -lf /var/lib/dhcp3


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Ubuntu Networking :: Can't Use Static Ip On Dhcp Server

Aug 17, 2010

I have 2 Ethernet connections, one (eth0) for the internet which gets set with dhcp, and one (eth1) for my internal network on which I have dhcp3-server running. I set eth1 to use static IP in interfaces, but every time I reset the network, it is fine for a couple of minutes, and switches over do being served by my own dhcp server on the same machine. (the interfaces file clearly says "iface eth1 inet static")

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Ubuntu Networking :: Static IP And DHCP Simultaneously?

Jan 5, 2011

Where I work we use almost exclusively Ubuntu 8.04 in command-line only form. I need to know if it is possible to configure one of these devices to use DHCP and a given Static IP at the same time. I know how to do one, or the other, but not both. #1. Is this possible?
#2. If so, how?P.S. Yes, I did look around before I asked this, but I could not find anything. Maybe I suck at searching?

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Ubuntu Networking :: Moving From Dhcp To Static Ip

Jul 19, 2011

ps3 lan, psp wan, xp desktop lan, netbook W7 wan, fujitsu laptop ubuntu wan for surfing but often lan for large files, android 2.1 phone wan, mac sawtooth G3 (rarley) lan. near future, tablet wan, crappy ancient laptop xp lan week i am having 6TB DS211j NAS (omg cant wait)I think, from what i have been reading, that moving to a static ip for each device will be better suited.I manage the belkin router from the ubuntu latop and wondered what the best way to proceed is, which first, what order etc etc.I can understand what needs to be done, i have the primary dns and ip numbers and mac address for every device ( the network is mac filtered)

so how would you begin...... a peice of paper and some drawings i have ready to plan it out.the reason i choose to change from dhcp to static is because of the arrival of the DS112j. from my understanding this device would benefit from never having its ip changed on the network. There have been times when the ip has changed on some of the devices in the past when the belkin has suffered a power failure or reset.

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Fedora Networking :: Networking And Static IP Adresses In Presence Of DHCP

Aug 22, 2010

I want to run networking on my laptops in different environment (home, office, airport etc). I found that Netowrk Manager assigns information from DHCP although I requested fixed IP and configured the gateway and DNS. If I reconfigure the DHCP server so that there is no free IP address, the laptop refuses to connect. When I remove the interfaces from the network manager, I get the fixed IP address, /etc/resolv.conf is not overwritten from DHCP but WiFi connection cannot be established, there is no dialog for setting WPA-PSK. The static IP address seems to be taken into account only if the DHCP server is not found. I need the static address at home and in my office because I need the possibility to ssh to my laptop from another computer but I need IP from DHCP possibly authenticating against RADIUS (Eduroam) when travelling somewhere else. Is there an easy way how to achieve it and how to switch profiles easily? And I cannot switch DHCP off because some devices in my LAN cannot work without it.

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Fedora Networking :: DHCP Works / Can't Get Static To Work

Mar 21, 2009

Yes, another newbie question. Just loaded and updated FC 10. Everything works great with dhcp. Tried to setup static ip to learn more about how to set it up and nothing seems to work. I'm connected to DSL via a router when I ifconfig I get:(basic stuff)inet addr: Bcast: Mask:

I have also tried default gateway and of what I have tried above has come from linux websites and faq's.Keeping in mind I am worst than any new newbie you have ever worked with

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Fedora Networking :: Internet Work With DHCP But Not When Static

May 28, 2009

I can access internet when my eth0 is set toDHCP client. But when I set static I can ping but my Firefox browser doesn't connect to Interent!

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Fedora Networking :: Static DHCP Works On All Computers

Oct 18, 2009

I'm pulling my hair out to figure out what's gone wrong. I have a small home network with a router and 4 computers, 3 linux boxes and 1 windoze machine.The windoze machine and 2 of the linux boxes (newer ones, one with FC11 and the other with Ubuntu Hardy) are using the router's "Set Static IP" option just fine. However an older FC5 machine I have always gets its IP assigned randomly. As this is the machine I ssh into from overseas via a Dynamic DNS, this is a huge frustration when the power goes off or I need to restart the machine. It's usually but sometimes and occasionally other numbers as well. It _should_ be As near as I can tell, I'm doing everything the same between the machines. The router config is very simple and works for the other systems so I suspect I may have a legacy tweak that I did years ago that's causing the problem.

Anyone know what I can try? I'm afraid I'm not a networking guru (ahem, wouldn't be posting if I were!) so things like "check the this" will be more helpful if there's a clear example. "Check the this...emacs /etc/thisfile/config" and see if XYZ option is TRUE" is far more useful. Again, many thanks. If none of the systems were working right then it would be totally different...but 3 seem to work just fine and happily get their assigned static IPs. It's the one non-conformist that's the trouble...

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Ubuntu Networking :: Static IP Defaults To Last Dhcp Until Restart?

Oct 17, 2010

I set up my interfaces file just fine on one of my computers and everything works. On my desktop its a no go. This is what I've done. I set my interfaces file to look like this


# The loopback network interface
auto lo
iface lo inet loopback


Then I uninstalled network manager (sudo apt-get remove network-manager-gnome). Now I can restart my computer, but I do NOT get a static IP of 112, instead I get the last working dhcp given address (.104). It connects and I get internet using .104.

BUT, if I run


sudo /etc/init.d/networking restart

then it DOES work. It changes to my address .112 and the internet works. But when I get that I get an error SIOCDELRT: No such process found (or something similar to that). But after it sits, it still finished with [OK] and my internet works. Clearly something is amiss though. Because it doesn't go to the static IP imediately. I even tried setting up a rcS.d link to a file with that networking restart command, but still no go. It starts with the .101 IP.

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CentOS 5 Networking :: Converting From Static Ip Network To DHCP

Apr 19, 2010

I decided to take the plunge and change the existing static ip configuration for my home network to a dynamic (DHCP) configuration. The DHCP server in this new network config is my gt701-wg actiontec DSL modem.


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CentOS 5 Networking :: DHCP Work But Not Able To Setup Static IP?

May 26, 2010

I am having several boxex with centos on it. No pb. I have recently setup a new box with centos 5.4 and I am not able to get the network working on it when configuring a static ip.I've configured eth0 and dns using "setup": unsuccessfulI've used the network config GUI: unsuccessfulAnd it is working very well when I let the dhcp getting the setting.I need a static IP.Here is the getinfo output when static ip setup, and below it, the getinfo for dhcp setting

== BEGIN uname -rmi ==
2.6.18-194.3.1.el5 i686 i386
== END uname -rmi ==


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CentOS 5 Networking :: Spontaneous Static IP To DHCP Switch?

Jan 7, 2011

I had something I think if very odd happen to one of my computers at work today, it appears to have spontaneously switched from having a static address set to getting its address by dhcp.this is a small office with a mix of mostly linux servers and desktops with a few stand alone windows computers, mostly notebooks. Most of the desktop computers get their address by dhcp, they all have NIS /NFS for remote mounted home directories (interchangeable desktops so anyone can log in at any desk). The particular desktop computer in question here has a shared printer on its parallel port, so has a static IP. Yesterday a UPS in the server rack died, after pulling it and plugging things back in and restarting the servers, it was easiest just to reboot all the desktops, everything came up ok including the desktop in question, and the printer did work.

Today I pulled the oversized UPS from this desktop to replace the dead one, and put a more appropriately sized one in its place, shut the servers down again, rebooted, etc,About an hour later someone tells me the printer is not working on the desktop, and after a lot of searching I find this desktop has the wrong IP address, I ran system-config-network and it showed the address was set to dhcp, I changed this back to the correct static IP and things seem to be working ok now.

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Ubuntu Networking :: Server: Dhcp - No Static - Cannot Ping Router ?

Dec 9, 2010

Fresh install of 10.04.1 server; installs seamlessly; finds network no problem.

However, establishing static connection is driving me batty. Will not take. I've reconfigured "interfaces" file several times. My fingers are numb ifdown-ing and ifup-ing and /etc/init.d/network restart-ing.

I have two files in /etc/network ... interfaces and interfaces~ (one static and the other dhcp). I can switch them in and out of play. The dhcp works and pings out like a champ. static is dead, just dead. Cannot ping router ... nothing.

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