I having a problem with my network. I'm trying to assign an IP alias of eth0:1 to eth0. If I use ifup eth0:1 is fails and corrupts the network. Making the network useless. But if I just enter 'ifconfig eth0:1 10.1.1.51', it work fine? My scripts look like these:
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:network-scripts; cat ifcfg-eth0
NAME="System eth0"
DEVICE=eth0
ONBOOT=yes
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I have my ubuntu box hard wired into my network. It all works fine, until I reboot my ubuntu box. After reboot, it can no longer see the network. I have it set up with a static ip. Not sure that I set it up completely correctly but it works fine...when working.. To fix the problem, I enter terminal: ifup eth0 That fixes all know problems until next reboot. What do I need to do so that it will remember settings and automatically be hooked into the network at power up?
View 3 Replies View RelatedI know I can rename my network interfaces (eg 'eth0' to 'lan', 'eth1' to 'net' etc) but does anyone know a way I can alias (symlink if you like) 'lan' -> 'eth0'
I want to be able to use more legible interface names in things like iptables rules (such as "-i lan" instead of "-i eth0") but I don't want to break any config that is expecting eth0 to exist....
When I setup the server I added multiple ips. Now that I need to edit ip info I can't find any alias files in the network-scripts folder. But restarting server the ips work fine. Is there some where else that this would be stored.
View 2 Replies View RelatedI'm having a weird problem, eth0 does not start neither on bootup nor ifup...not even issuing /etc/init.d/networking restart...i will show you some info just to check
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I am in the process of settign up a home server under FC14. The installation recognized both NICs, one as Intel Gigabit and the other as a Realtek Semiconductor as it should be. But when trying to start eth0 (Realtek) I get the following error message:
[root@theraugafamily network-scripts]# ifup eth0
Active connection state: activating
Active connection path: /org/freedesktop/NetworkManager/ActiveConnection/1
** (process:2296): WARNING **: _nm_object_get_property: Error getting 'State' for /org/freedesktop/NetworkManager/ActiveConnection/1: (19) Method "Get" with signature "ss" on interface "org.freedesktop.DBus.Properties" doesn't exist
state: unknown Error: Connection activation failed. Some more ifo the this NIC as it is of special type.It is a Viking PCI ADSL2+ Modem Card. I am quoting form the description "Being a gully integrated card, no external plug packs are required and cabling is simplified to just an ADSL line connection. The need to purchase an extra ethernet card is also eliminated, as yjis features is build into the card. The onboard Ethernet controller (RTL8139) makes the modem appear to the OS as a standard network card. Thus the Viking can be used with almost any modern O/S without the need for special drivers. This includes Windows, Linux, Solaris, xBSD, etc.." setting ACPI=off in GRUB.conf does not fix the issue
I've had 11.4/KDE working pretty well on dual boot Asus G73SW for a few weeks now. Only issues were the FN-* functions that control keyboard lights and whatnot but no biggie since the essential worked.The last couple of days the update notification was indicating 1,201 updates to be made. Yeah it seemed extreme but I googled around and checked the forums and there was nothing related. I figured I might be missing some packages since I installed from the live KDE CD (still 1202 updates!!!???). So I updated. Big mistake!!!!! Ever since NetworkManager cannot connect to the internet, be it wired or wireless.
Initially it could not even see my home network but it picked it up after I removed the plasmoid from the panel and reinstalled it. However it doesn't respond when I click the network icon and still no connection.I managed to get eth0 working with ifup but not wifi. The last part of network manager log file is quoted below. I can send the whole thing to whoever is interested. I can't make sense of it but maybe someone on the forums can.
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Jul 13 11:09:08 linux-yy10 NetworkManager[1649]: <info> NetworkManager (version 0.8.9997) is starting...
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After spending quite some time on this, I have narrowed it down to:
Adapter works OK with NetworkManager
Adapter works OK with ifup if I run iwconfig after ifup has finished
It eppears to be linked to another thread Probl me de r seau wifi / Network manager in that dhcp needs to be running. (So it may be a 'feature' of RTL819 adaptors) So I've finally worked out that I need to start dhcp first.
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how to remove the network alias (ex: ifcfg-eth0:2)from RHEL5, i had deleted the ifcfg-eth0:2 file from /etc/sysconfig/network-scripts/ifcfg-eth0:3but i can still see the entry in the graphical network configuration after i issued the command system-config-network, i want to remove it from there.
View 3 Replies View RelatedI have been running into network issues lately with my CentOS 5 (installed on AMD Athlon X2 - 64 bit machine about 2 years ago). It was able to connect to the network fine until yesterday when I installed more memory into the machine restarted it.
Upon restart, the boot up was paused at 'Determining IP information for eth0' step for a while and booted with out connecting to the network. I tried restarting the network (/sbin/service network restart), but this is the error message I continuously get: Determining IP information for eth0...PING xxx.1.226.1 (xxx.1.226.1) from xxx.1.226.83 eth0: 56(84) bytes of data
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A friend called me today and he explained to me that after his ubuntu install he was unable to connect to a wired Ethernet network. He says it trys to connect using ETH0 and then seemingly fails and disconnects. I have him run a if config and send me a pic. The very odd thing about it is He had a lot 5-8 INET6 address? The laptops is Acer extensa 4420
View 1 Replies View RelatedI'm running a fresh install on an intel i7 system on an asus p6t deluxe v2 motherboard with the onboard NIC (Marvell Technology pci-e). I know the NIC is working as when I boot into the onboard OS that Asus provides (Asus Express Gate SSD)I have a working net connection.Booting up CentOS hangs at determining IP information for eth0 and eventually fails with the following error:PING xxx.170.30.1 from xxx.170.31.231 eth0: 56(84) bytes of data---xxx.170.30.1 ping statistics ---4 packets transmitted, o received, +3 errors, 100% packet loss, time 2999ms, pipe 3 failed.
RTNETLINK answers: file exists.
RTNETLINK answers: file exists.
RTNETLINK answers: file exists.
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5.10 Breezy configured as machine controller. Works great eth0 is a fixed IP to communicate with controller comms board. Not easy at all to alter - the comms board is hard coded to listen on eth0 for commands.
I can use eth1 as the default gateway and ping google.com, etc. But when I now attempt to communicate with the controller with netcat, e.g.
Code: echo !HH | nc 192.168.1.6 80
I obviously never get an answer since the request is passed via eth1. Using the -g option with netcat doesn't work either. I had a look at iptables but it doesn't seem to be able to do what I want. How I can still use eth0 as my communication port to the controller whilst eth1 is the default gateway?
I have two servers on a vlan at my datacentre/colocation and previously both servers had public IPs on their eth0 interfaces. The servers are HP ProLiant DL360s - one is a G4 and one is a G5 The newer G5 is now the LAMP server and the G4 has been retired and I want to repurpose it as an iSCSI target using openfiler freenas or similar.
My G5 has public/static IPs lashed to the eth0 physical interface and the eth1 is not configured to do anything yet. The G4 will have both interfaces available - perhaps one for ssh access from one of my static public IPs and the other to be a private IP on the local vlan. Here is what I am trying to get my head around...
The G5
eth0 - Public IP - full LAMP services on two or three virtual interfaces
eth1 - Private IP 192.168.0.1
The G4
eth0 - Public IP for ssh
eth1 - Private IP 192.168.0.2
Because my traffic between eth1 on these boxes is via private IPs on the local private vlan it doesn't add to my quota for bandwidth. How do I go about configuring the routing and gateways and other aspects of this so that I can run a private IP space network between the eth1s and still serve the outside world from the eth0s...
I am afraid that if I assign the private IPs to the eth1 interfaces the routing may either not work or interfere with the access to the production internet facing interfaces (eth0s).
I'm running a dual boot Ubuntu 10.04/Backtrack 4 (Ubuntu 8.10) system. I can get internet in the BT4 side but not in the Lucid side. In Lucid I can ping my router, and the network manager says I'm good to go, but I can't get to any web sites. It all started when I tried to put my laptop on another network by mimicking the settings of a computer I had just unplugged from the network. MAC address and all.
ifconfig eth0:
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eth0 Link encap:Ethernet HWaddr 00:1f:16:ba:4c:8c
inet addr:10.136.9.147 Bcast:10.136.9.159 Mask:255.255.255.240
inet6 addr: fe80::21f:16ff:feba:4c8c/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
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Installation fails part way-in , prelim formating of drive is ok, Failure comes when network connection is require to continue. The Marvell 88E8056 PCI-E gigabit Lan Controller is correctly listed but network manager fails to bring it up. when I put the old F10 drive in , everything boots up , I can surf the web.
View 2 Replies View RelatedI have a pppoe adsl connection. When I disconnect and try to reconnect, network-manager keeps asking for my password. I type it again and again with no success. When I reboot, it works again. On ubuntu, I use pppoeconf and it works well. So on Fedora I made a connection with pppoe-setup but neither ifup nor
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pppoe-connect
commands work. When I type
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pppoe-connect
, it says
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/usr/sbin/adsl-start: line 217: 13409 Terminated $CONNECT
"$@" > /dev/null 2>&1
. When I type
Ifup ppp0 doesn't work either. However, with exactly the same settings, ubuntu connects to the internet.
im trying to setup eth0 with subdevice eth0.0 and eth0.99 to come up at boot
eth0 is dhcp clint
eth0:0 is static ip
eth0.99 is 802.1q vlan interface
/etc/network/interfaces
Code:
auto lo
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i install kernel rpm after i boot that kernel network not working kernel name : kernel-rt-trace-2.6.24.7-132.el5.centos.i686 [URL] error "Bringing up interface eth0: Device eth0 has different MAC address than expected, ignoring."
View 1 Replies View RelatedI try to generate a server client code. What i try to do is sending video streams from eth0 and eth1 to the other server programs' eth0 and eth1. In order to do that, i decided to use SO_BINDTODEVICE. But the code is not working. Am i misunderstood the usage of SO_BINDTODEVICE.
1-Defining two ports
2-Defining two sockets
3-Assigning host ips on them
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I have to move our DNS server to our VMware environment. With that comes a new IP address (10.10.102.x). The current address is in the 192.168.10.x. range. Is there a way to bind an alias to my NIC that has a different IP range? I tried it and it didnt work but if i used two IPs in the same subnet range it works. What are my options?
I don't want to go around and modify all my clients to use the new IP. I have many other things running like Nagios and Puppet. Unfortunately this is going to suck and I probably dont have any other options.
I'm running ubuntu 9.04 and I have set up 2 ip aliases using the /etc/network/interfaces file http://pastie.org/775037 -- when I ping the main address 10.0.2.16, all works fine, same with the first alias 10.0.2.22 -- but I can't reach the 2nd alias 10.0.2.23 I get the following from ping:
PING 10.0.2.23 (10.0.2.23): 56 data bytes
Request timeout for icmp_seq 0
Request timeout for icmp_seq 1
Request timeout for icmp_seq 2
92 bytes from 10.5.0.1: Destination Host Unreachable
Vr HL TOS Len ID Flg off TTL Pro cks Src Dst
4 5 00 5400 06eb 0 0000 3f 01 5e81 10.5.0.34 10.0.2.23
My machine's IP address is 10.5.0.34 I can't figure out why I can ping 10.0.2.22 but not 10.0.2.23 -- seems like there is probably some kind of routing thing that I'm missing, but I'm confused how it would have gotten set up for 10.0.2.22 but not 10.0.2.23 -- hopefully someone out there has an idea -- or can point me to references where I might be able to learn how to debug routing issues on a network?
When I try to bring up my wi-fi PCI card (ifup wlan0 or ifconfig wlan0 up) my whole PC just hangs until I power it off.
I believe I have the right drivers, but cannot see what I am doing wrong.
I'd really prefer not to go down the ndiswrapper route.
Firstly, I can see the PCI card and the driver it is using :
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[J@gx260-f10 ~]$ lspci -k
...
...
01:08.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8185 IEEE 802.11a/b/g Wireless LAN Controller (rev 20)
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the PC just hangs for ever. No mouse movement, ctrl-alt-del, nothing.
I have downloaded a Linux driver from Realtek but it will not compile. I have the latest kernel-devel, headers, and gcc. I can post compiler errors if anybody would like. They're all apparently to do with missing parameters.
Is there anyway you can configure either OpenVPN client or the system to allow connections using OpenVPN to be made to computers on the OpenVPN network using their alias rather than their IP address. This may sound blasphemous but you can in Windows. That is if the VPN network is say 10.x.0.x I could connect to Comp4 or Comp2 using Comp4 or Comp2 not 10.x.0. 4 or 10.x.0.2 or whatever IP is allocated by the OpenVPN server. If the OpenVPN server has not been restarted then it will usually allocate the same IP every time the same client connects.
View 8 Replies View RelatedI'm trying to arrange my 4 NIC's on CentOS 5. Two of them are build-in motherboard nic's and the others are PCI-E Dual Intel card. I'm wondering if someone succeed with udev renaming rule based on BUS location like ID=="0000:03:00.0" ... etc
View 4 Replies View RelatedWhen setting up an alias for eth0, the interface works as expected for normal traffic, but does not receive broadcast traffic.
Host 1's setup:
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Pinging host 1's normal interface from host 2 works as expected:
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Pinging host 1's alias interface from host 2 works as expected:
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Broadcast pinging from host 2 only gets a reply from host 1's real interface (as well as some other uninteresting devices on the network):
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I have confirmed by listening on both interfaces using netcat, and broadcasting using netcat, and again only the real interface receives data.
Is this by design, or is it possible to get interface aliases to receive broadcast traffic?
Basically I am looking for a simple way to create a universal nickname/alias for a interface.We ship servers that have upto 6 NICs on them. The user can have those NIC configured as either ethN, bondN or vlanN interfaces. As we need to provide NIC status information we would like to be able to run commands such as
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ifconfig INTERFACE1
that would map to whatever the user had already configured.
I have a hardware device with two ethernet ports, eth0 and eth1 running Centos 5. Basically my goal is to forward packets from eth0->eth1 and eth1->eth0 as well as get a copy of these packets for analysis. If I set IP routing to do the forwarding then I won't get a copy of the packets for analysis.
View 3 Replies View RelatedSo I thought I was getting the hang of networking stuff, but, apparently not. Anyhoo, I have a startup script (very basic one liner)ifup -a Reading the man page for ifup it says this should bring up all devices listed in interfaces file (so contained in there I have):After starting my machine I run ifconfig which returns no output.If I do ifup eth0 I get: ifup: interface eth0 already configured.So finally, if I run dhcpcd this brings up my nic. If I then do ifdown -a and kill the dhcpcd process and then manually type ifup -a, it all magically comes back.Would someone explain what step I am missing in the process to have all my cards startup as part of the boot process?
View 11 Replies View RelatedIf I uncheck and recheck "Enable Networking" in the Network Manager Applet 0.7.996 I would expect the wired network to disconnect (which it does) and reconnect (which it does NOT). So I tried sudo ifdown eth0 and got
Quote:
Ignoring unknown interface eth0=eth0.
ifconfig tells me
Quote:
eth0 Link encap:Ethernet HWaddr 00:25:64:e8:18:2c
inet addr:192.168.0.112 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::225:64ff:fee8:182c/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
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so I am at a loss. How do I stop and restart the network interface short of rebooting the machine?