Fedora Networking :: All Eth Devices On F9 Box Have Same IP Address?

Jul 28, 2010

What I am trying to do is the following: I have many IBM MT-M 6223 towers (Intel Xeon processor) that need to run a certain Fedora 9 configuration. It is working on one box, now it needs to be replicated on all of the others. What is being done is the working box is cloned, and then that image is loaded on all of the others.These boxes have 5 total Ethernet devices. There is one on-board port, and there are two 2-port expansion cards for a total of 5.

There was one initial problem out of the gate that has since been solved (or perhaps not completely). What was happening is that the boxes that received the cloned image had their Ethernet devices misnumbered. Instead of eth0 through eth4, they were numbered eth5 through eth9.This was eventually traced to the following file: /etc/udev/rules.d/70-persistent-net-config. That file contained the original settings from the box that was first cloned. It had eth0 through eth4 at the top with MAC addresses belonging the box that was the source of the cloned image. It looks like this mismatch was detected, and five more entries, numbered eth5 through eth9, got appended to the bottom with MAC addresses belonging to the new box.

Once /etc/udev/rules.d/70-persistent-net-config was deleted, and the machine rebooted, the 5 ethernet devices came up with the correct numbering (0 thru 4). /etc/udev/rules.d/70-persistent-net-config was rebuilt with the correct devname-MAC pairing.

Now for this new problem.... Part of the configuration across all these machines is that only eth3 should have an IP address. It is a static IP address set through the /etc/sysconfig/network-scripts/ifcfg-eth3 file. All of the other devices must NOT have any IP address. They are either not used or used only for raw Ethernet.After clearing out /etc/udev/rules.d/70-persistent-net-config, /etc/sysconfig/network-scripts/ifcfg-eth3 was edited to give the new box its own unique static IP address before rebooting.Sample ifcfg-eth3 file:

Code:
DEVICE=eth3
BOOTPROTO=static

[code]....

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Networking :: Fedora 15 Naming Network Devices

Jun 23, 2011

I'm doing a few tests with fedora 15. I'm surprised because they changed the naming way on network devices. eth0 is now called em1.At every fedora I have found the configuration files in /etc/sysconfig/network-scripts, but today I can't find them.

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Dec 4, 2010

Does anyone know of an application that continually scans for devices on a network and notifies you if a device connects/disconnects to/from the network? I just want a way of knowing when a computer is connected and when it's not.

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Fedora Networking :: Bring The External Device (192.168.1.9) To The Set Of LAN Devices That Receive LAN Broadcasts?

Aug 18, 2009

i have an isolated LAN (no connection to outside) with 3 fedora boxes. Suppose one of the boxes has an IP device connected to the serial port. We use SLIP and slattach to configure it and we can ping the device from every fedora boxes. Is it possible to bring the external device (192.168.1.9) to the set of LAN devices that receive LAN broadcasts?

box 1: 192.168.1.1
box 2: 192.168.1.2
box 3: 192.168.1.3.

It runs slattach and uses 192.168.1.9 to address serial connected ip device. I set up this scenario and the external device is ping(ed) with success but if I build a socket udp program that sends a broadcast to the LAN all the fedora boxes receive it except the external serial device. Why.

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Red Hat / Fedora :: RHEL 5 Dual Networking - Ethx (0,1) Devices Are Brought Up Be Changed At Boot Time

Jun 3, 2010

I'm having an issue with dual networking on RHEL 5. My initial question is can the order the ethx (0,1) devices are brought up be changed at boot time, so I could bring up eth1 before eth0?

Some background: eth0 is DHCP'd and using DNS, basically this is my primary network. eth1 is an isolated subnet, with a manually configured IP which has no connection to eth0 or the outside world. When I bring up networking it first brings up eth0 and then eth1, what happens is eth1 becomes the 'primary' network of the host and I lose my connection to DNS/NFS/NIS and the outside world.

If I login and manually bring up eth1 first, then eth0 everyone is happy and connections work. So, I'm looking for a solution to either bring up eth1 before eth0 or somehow make eth0 my primary IP and not have it be clobbered by eth1.

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Ubuntu Networking :: Port Forwarding From Public Address To Private Address?

Feb 24, 2010

Currently my OS is Ubuntu 9.04 Jaunty Jackalope Desktop OS and my web server is Apache2. I have a public address 60.x.y.z and my pc local address is 10.x.y.z. I have a web app in my Apache2 which currently run in localhost(10.x.y.z).

I would like to enable the web app so that it could be browse from outside. I know there maybe some port forwarding process and some commands involved in order to do that. But I have no idea on the steps to do that.

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Networking :: Error Str2addr:Address 35 Outside Range Of Address Field Length 1?

May 12, 2011

I am working on implementing a protocol on NS2.34 .I really need help to solve this problem . Actually , I don't now whether the problem is generated by the tcl code or the c++ code when I run the simulation, I get this result :

Code:
num_nodes is set 64
INITIALIZE THE LIST xListHead
34
45
channel.cc:sendUp - Calc highestAntennaZ_ and distCST_
highestAntennaZ_ = 1.5, distCST_ = 550.0
SORTING LISTS ...DONE!
code....

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Networking :: Program To Assign Globa LIPv6 Address And Bind() To The Previously Assigned Address?

Apr 24, 2010

Consider the following program:

Code:
#include <stdio.h>
#include <stdint.h>

[code]...

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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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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 :: Dynamic IP Address With PTR Record Versus Fixed IP Address Without?

May 7, 2010

I am running my own Postfix mail server. Some time ago I noticed that most email was rejected because of the server's dynamic IP address. So I got a fixed IP address. However then I noticed that some mails got rejected due to failing the reverse DNS check. So my ISP told me to get a range of IP addresses and they could then create a PTR record for one of those addresses. That is now running but it turns out that the IP address used for the PTR record is a ... dynamic IP address. So Spamhaus PBL rejects my emails again.

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Fedora Networking :: FC10 - Wifi Devices To Work On 128bit WEP Network - Linksys Wireless-G And 5100AGN

Jun 20, 2009

I'm having trouble getting my wifi devices to work on my 128bit WEP network. I have a new Thinkpad T400, with an internal Intel PRO/Wireless 5100 AGN. I also have some cardbus cards: a Lucent ORiNOCO Gold, a Linksys Wireless-G, and a TRENDnet TEW-421PC. I have them set up as interfaces eth2, eth1, and eth3. (The TRENDnet isn't recognised as a network card at all, so no interface for it.) I have installed the latest firmware for the Linksys card.

The /etc/sysconfig/network-scripts/ifcfg-* files are virtually identical for all of them, differing only in the HWADDR and DEVICE lines. So here's the behaviour:

1. The Lucent card comes up just fine.
2. The internal 5100AGN and the Linksys cards won't come up, and watching with iwconfig shows that they're either associated with my AP OR they've got an encryption key set -- but not both.
3. When trying to bring up the 5100AGN, I get the following messages:

iwlagn: index 0 not used in uCode key table
iwlagn: index 3 not used in uCode key table

/var/log/messages shows DHCPDISCOVER requests being sent, but they're bound to fail since the association with the AP with WEP isn't being completed. And yes, the ifcfg-* files really *are* identical except for the DEVICE and HWADDR lines. The /etc/udev/rules.d/70-persistent-net.rules file correctly maps the interfaces to the MAC addresses. So why does my antique ORiNOCO card work and thew newer ones fail? How can I track down what's being done wrong/not being done?

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Networking :: Bind External IP Address To Internal IP Address?

Jun 7, 2009

I have a few external IP's assigned to me by my ISP. I have IPcop as my router/firewall. I am wondering how to bind 1 of my external ip's to my internal ip address. So I do not have to port forward, etc. For Example, 77.77.77.77 to 192.168.1.123 and on the server it see's the external IP address.

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Fedora Networking :: How To Change The Mac Address

Feb 17, 2009

Some people may need to change the mac address of their ethernet network cards. This can be easily done with fedora with command line. Just follow the steps below:

1. Log as root on a textual console (ctrl+F2) or through "su -" command in your console

2. Print your network configuration with ifconfig

[root@localhost ~]# ifconfig
eth0 Link encap:Ethernet HWaddr 00:23:8B:6A:7E:9E
inet addr:10.1.128.244 Bcast:10.1.255.255 Mask:255.255.0.0
inet6 addr: fe80::218:8bff:fedb:7e9e/64 Scope:Link

[code].....

Here, eth0 is the ethernet interface of your system. The mac address is put in red.

3. Change your mac address using the following syntax

ifconfig eth0 hw ether 00:18:8BA:7E:90

The new value (in green) must be hexadecimal

4. if you have a dhcp server that distributes the adresses automatically, then request a new adress for your eth0 interface

[root@localhost ~]# dhclient eth0

5. Now, your interface is up and have a new mac and IP addresses. This feature may be useful if the network administrator ban you according to the mac adress, for example .........

[URL]

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Fedora Networking :: Cannot Get IP Address For Eth0

Aug 2, 2009

I downloaded Fedora 10 32bit and put it on a Dell Dimension 8200 to save it from the recycle bin. Everything seems to work except I cannot get an IP addr. Roadrunner is my ISP using a cable modem and a Linksys Instant Broadband Series Etherfast Cable/DSL router model BEFSR41. In system-config-network, the nic shows inactive. If I activate it a window opens saying "determining IP information for eth0". After a short time the message adds the word "failed". Using a Windows PC on the same network, I can look at the DHCP connections on the Linksys and I see the MAC addr for the PC running Fedora.

From the OS installation, /etc/sysconfig/networking/devices/ifcfg-eth0 has following:
DEVICE=eth0
HWADDR=00:80:ad:d1:88:c9
ONBOOT=yes

[Code]....

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Fedora Networking :: Specifying DNS Server Address

Aug 3, 2009

I have specified Primary DNS address in Network Manager's DNS tab and saved those settings. But when I restart my PC, Primary DNS address will go blank. How can I save this address premanently?

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Fedora Networking :: Set The Ip Address To Device?

Nov 20, 2010

How to set the ip address to particular device(ethernet device)

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Fedora Networking :: Change IP Address In KDE?

Mar 26, 2011

I've just reinstalled F14 with KDE rather than Gnome and I'm finding that I'm unable to assign a static IP address to my wired connection.

KDE automatically connects via DHCP, but when I go into KDE's network manager, the eth0 connection isn't listed. In fact, no wired connection is listed. If I manually add one with the correct settings (including a static IP), it switches back to DHCP upon rebooting.

How can I get around this? Should I install the networkmanager-gnome package?

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Jun 9, 2011

i have run a ftp server with vsftpd. i set a public ip address on my server . but i want to define a name for this ip address (for example ftp.test.com) how can i do that?

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Fedora Networking :: Know Remote Ip Address?

Jul 14, 2011

I want to connect yo server in my house and in work i want to know the ip of my home server.

How can i get my dinamic ip adress of my home server ?

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Fedora Networking :: Find Mac Address From IP ?

Jul 18, 2011

I need to find mac address when i know the ip of one client ( for example ). How can I do this ? ( Command )

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Fedora Networking :: Find MAC Address Of A Networked PC?

Feb 21, 2009

I want to find the MAC address of another pc connected to my pc through LAN. That PC is showing GRUB load error so i cant boot it.

Can i find its MAC address through my PC? Both PC's are connected in LAN.

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Fedora Networking :: How To Change Wlan Mac Address ?

Mar 3, 2009

I couldnt find something for changing mac address for wireless. how to do that....

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Fedora Networking :: In Which File DNS Address Is Located In 10

Mar 26, 2009

in Which File DNS address is Located in Fedora 10 ? in Which File IP ?

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Fedora Networking :: No IP Address For Local Machine?

Mar 31, 2009

I tried to authenticate using ntlm proxy authentication service and my computer could not retrive the IP address. Currently I am using fedora cammbridge

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Fedora Networking :: Wlan0 Cannot Determine IP Address?

Apr 18, 2009

I am tring to get my linksys wireless router to connect to my laptop that i recently installed Fedora 10 on. Well it is actully running of an external HD. Any way when i boot in windows it connects and works fine, but when i try to activate wlan0 it says "Cannot activate network divice wlan0!" "determining IP info failed..."

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Fedora Networking :: Change In Gateway Address?

May 26, 2009

OS:Fedora core 6

I have just changed my gateway address,now I can access internet with my browser but unable to run add/remove software as it says no network connection available,system updates are not working as well. What should I do make these working?

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Fedora Networking :: Cannot Get A Static IP Address To Work In 11?

Oct 29, 2009

I cannot get a static IP to work on Fedora 11. Using Network Manager, I set the IP to 192.168.1.130, the subnet mask to 255.255.255.0 and the gateway to 192.168.1.0 but it doesn't work. I also tried 192.168.1.1 for the gateway, which is what I used in FC7 but still no luck. I verified that these are the settings that I used in FC7, I don't remember ever having a problem before with this.I do remember someone telling me not to use Network Manager in conjunction with Network Configuration... does that make sense? That was for FC9 on my laptop and it was for the wireless so perhaps that doesn't apply here. I did try unchecking the box for Network Manager and using strictly Network Configuration but it still didn't work.

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Jul 14, 2010

My ip address is not resolving to the domain name.
I have checked etc/host reboot and all but it's not working.
I can't seem to find where to post my issue then I found you and you are on line

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Fedora Networking :: 15 Freezes When Trying To Get Address On BCM4313

Jun 26, 2011

I have been using Fedora for some time now... but mostly on desktops without wireless cards. And it has worked great!

Now I installed it on my new Acer AO522 netbook which has the BCM4313 wifi chipset and I am running into issues.

Description: Out of the box Fedora recognizes almost all of the hardware. When I run lspci I can see the BCM4313 being detected...

But ifconfig does not show it... Ok... so I figured that the driver was not installed. So I went looking and found drivers on www.rpmfusion.org. I have tested...

broadcom-wl
akmod-wl
kmod-wl

However, all of them allow the NIC to be detected... And on the initial install I can run modprobe wl and get the wifi online and get connected. However, after a reboot... Everytime the wifi tries to get an address the system freezes... And it freezes hard.... as in no ALT+CTRL+BS... or allow me to enter console with the F-keys.

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