Tagged Questions

0
votes
1answer
64 views

IP Config resets to default settings in Linux every night

I have a linux server (centos 5) which for the past 2-3 weeks has been resetting it's ip config information to a local ip (192.168.x.x). In /etc/network/interfaces I have: auto lo iface lo inet ...
0
votes
0answers
32 views

What does `ec` mean in `HWaddr ec`? [closed]

When I do ifconfig on my laptop I get HWaddr ec and than an address, this is next to eth0. Note that my IPv4 address only appears next to eth1 so I assume my laptop uses the eth1 network interface. I ...
0
votes
3answers
80 views

Linux ifconfig command ip address , subnet mask permanent

I would like to change my ip address and subnet mask with the following command: ifconfig eth1 192.168.1.2 netmask 255.255.255.0 up and route add default gw 192.168.1.1 when I reboot my linux it's ...
0
votes
2answers
72 views

No route to host in different subnet

My new employer has two subnets, x.y.74.* (with default gateway x.y.74.33) and x.y.75.* (with default gateway x.y.75.1). The .75.* subnet is reserved for servers, i.e. machines that offer services to ...
0
votes
2answers
62 views

Server reverts to DHCP from time to time

I have an Ubuntu 10.04 server with static IP address configuration: # The loopback network interface auto lo iface lo inet loopback # The primary network interface auto eth0 iface eth0 inet static ...
3
votes
0answers
247 views

With CentOS 6 and LXC, “ifconfig” is unable to see network interface (but busybox “ifconfig” works fine)

I've just started working with LXC under CentOS 6 (via the libvirt adapter). If I create an LXC container, I'm unable to see any network interfaces when using the native system tools: # ifconfig -a ...
0
votes
0answers
47 views

ask about “teql0” from ifconfig in linux

I have an embedded target device with cross-compilation development settings (ELDK). I happened to use ifconfig to see the ethernet interfaces on the embedded OS. Besides, the eth/lo interfaces, I see ...
1
vote
3answers
139 views

interface id for ethernet card

My PC (CentOS)has one ethernet card 1, linked to the internal company network for internet surfing etc., and another ethernet card 2, linked with an embedded device for programming. Each time, when ...
0
votes
1answer
91 views

Problem configuring Network aliases

Struggling a bit trying to work this out. I'm on a Centos 5.5 VPS with multiple IP addresses. I've setup the IP address alias for eth0 (eth0, eth0:1, eth0:2, eth0:3, eth0:4, eth0:5), each with a ...
1
vote
1answer
135 views

different MTU sizes for bond aliases

I have a bond interface but I want to change the MTU to 1500 only for bond9:22 Is this possible? bond9:22 Link encap:Ethernet HWaddr 00:0E:0C:E4:BE:F9 inet addr:10.7.18.58 ...
0
votes
1answer
121 views

getting multicast on a virtual interface on linux

I create a virtual network interface with: ifconfig eth0:1 192.168.0.1 netmask 255.255.255.0 but when I ping the multicast address: ping 224.0.0.1 my virtual interface does not respond. Why?
0
votes
2answers
236 views

Reported bandwidth usage differs between iproute2 and ifconfig

My group has a server set up to image our workstations using FOG. I was a bit curious to see how much bandwidth we were using. When I run ifconfig eth0, the TX/RX lines read RX packets:166949376 ...
0
votes
3answers
1k views

RTNETLINK answers: Invalid argument

When my system boots up it shows the following message. Bringing up loopback interface: [ OK ] Bringing up interface eth0: RTNETLINK answers: Invalid argument [ OK ] Bringing up interface eth1: ...
1
vote
3answers
263 views

Dropped packets in Linux

I'am using a machine as a router, it works sort of fine, however if I do a ping -t whatever.server it will always cause a 3-4% package loss, no matter what server. Looking at ifconfig or netstat -i ...
2
votes
2answers
1k views

Exact meaning of RX 'errors' and 'frame' in ifconfig output?

I'm seeing network problems with a (RHEL) node (packets dropped), which also seem to manifest themselves by a non-zero count of the 'error' and 'frame' fields in ifconfig output: eth2 Link ...
2
votes
6answers
731 views

Ifconfig Alias Address Assigned by DHCP

I would like to create several aliases to eth0, but have the addresses assigned by DHCP instead of being set to static IP's. Is this even possible? All the examples I've seen assign a static IP ...
1
vote
2answers
490 views

Routing data through VPN in linux

I think its a silly question but still here it goes.. Terminal Output: eth0 Link encap:Ethernet HWaddr 00:1c:c0:37:5e:25 inet addr:10.100.98.51 Bcast:10.100.98.255 ...
2
votes
4answers
145 views

ifconfig dirties inode on proc (Linux)

I'm currently checking HD access with the following echo 1 > /proc/sys/vm/block_dump tail -f /tmp/syslog and this log message pops up once in a while: Aug 31 22:44:18 Frasse kernel: [ ...
0
votes
3answers
261 views

Can't get an IP address

I'm running Ubuntu 9.04. I have an onboard network card. The computer usually boots perfectly, but today, I don't have an IP address. The light is on, on the network card as well as the switch. Other ...
2
votes
8answers
1k views

Correct way of bringing network interface down in linux

For example: $ ifconfig dummy0 up $ ifconfig dummy0 "192.168.1.190 netmask 255.255.255.0" Calling ifconfig with no parameters shows the interface dummy0 Link encap:Ethernet HWaddr ...