I've got an issue with a VMWare server running RHEL 6.3 that has dual E1000 NICs. I have configured the cards as I would normally do in /etc/sysconfig/network-scripts as ifcfg-eth0 and ifcfg-eth1. I can execute ifup eth0 and bring the interface up quite happily, however when I execute ifup eth1 it succeeds but the IP details are assigned to eth0 and eth1 has no IP details as shown below:
I've checked /etc/udev/rules.d/70-persistent-net.rules and the MAC addresses match what is in vSphere for the virtual hardware. I can't find anything else that appears weird or unexpected.
Does anyone have any ideas as to what I might have screwed up here?
when i finish installed rhel 4.4 to my hp dl585 box, ifcfg-eth0 and ifcfg-eth1 is not available.when i ifconfig -a,i can not see the eth0 and eth1, only lo0 and si0. Unlike to the other server i found eth0 and eth1 files in
/etc/sysconfig/network-scripts/.
what will i do? (2 Replies)
I have been looking in the scripts for interface management, in an effort to kick off a script of my own on any "significant network event" (I will qualify that in a bit)
I managed to add a check to tell netplugd to run my script every time there is a hot-plug event. Now I need to make it so my... (0 Replies)
I have a little script in the /etc/network/if-up.d (debian). It should do something and write the output to a log file. But it doesn't seem to work.
ifup wlan0 dosomething >> /var/log/dosomething.log
I would like to add the date to the output, can somebody help me please?
Thanks! (6 Replies)
Hi Guys,
is there a way to send traffic coming from the source iface (eth0, eth1)? i need to test traffic that will come from both eth0 and eth1 from a Linux box.
Thanks,
Martin (0 Replies)
Hi Guys,
I am working as a L-1 support and i want to know that are the precaution need to take on eth0(Ethernet card) i heard on production server it is very much important, what are the steps need to observe on this tickets. (1 Reply)
hi there
the ethernet wire was out of the pc when the system started.
#ifconfig
#ifconfig -a
i did not get any ip for eth0.
i plug the cable into the pc
#ifdown eth0
#ifup eth0
now the ip address is assigned to eth0
Question is : IS this right way to bring ethernet down... (2 Replies)
hello,
first of all i am new to unix so maybe my problem is very easy for many of you but is very important to me.
So the idea is that i want to use a ubuntu 10.4 machine as a router from eth0 to eth1.
but the traffic routing is nor working properly
i configured the 2 interfaces to be... (2 Replies)
hellow everbody.
iam using 32 bit centos 6.2 on my desktop and iam new to linux. i have eth0 and eth1 on my desktop. so i have some problems i have menson here:
i have edited:
etc/sysctl.conf
net.ipv4.ip_forward = 1
and i have edited iptables too
# iptables -t nat -A... (2 Replies)
I have a local network on dev eth0
Server has static IP of 10.0.0.1
Gateway is 10.0.0.1
and Dns is 10.0.0.1
I am using this network for imaging 500 plus computer...
Now, Issue that I am having is that I need to update packages and I dont want to change the configuration on eth0 because I... (0 Replies)
Hi, I use ubuntu 16.04 desktop with ufw (default setup + 22, 80, 443 ports open).
I connect directly to ISP using pppoe over eth0. I also have eth1 which when disabled the websites are accessible in browser. When starting eth1 with auto dhcp the websites are no longer accessible in browser (give... (3 Replies)
Discussion started by: adrhc
3 Replies
LEARN ABOUT SUSE
ifcfg-bridge
IFCFG-BRIDGE(5) Network configuration IFCFG-BRIDGE(5)NAME
ifcfg-bridge - ethernet bridge interface configuration
SYNOPSIS
/etc/sysconfig/network/ifcfg-br*
CONFIGURATION
To setup a bridge interface you need a configuration file ifcfg-<interface-name> with the usual network settings. But you must add addi-
tional variables:
BRIDGE <yes|no>
This option must be set to 'yes' to identify this interface as a bridge interface.
BRIDGE_PORTS <interface1 interface2 ... interfaceN>
This variable contains a space-separated list of N interfaces which take part in the bridging.
OPTIONAL VARIABLES
BRIDGE_AGEINGTIME <time>
This option sets the ethernet address ageing time, in seconds. After <time> seconds of not having seen a frame coming from a certain
address, the bridge will delete that address from the forwarding database. Setting ageing time to zero makes all entries permanent.
BRIDGE_FORWARDDELAY <time>
Forwarding delay time is the time in seconds spent in each of the listening and learning states before the forwarding state is
entered. This delay is so that when a new bridge comes onto a busy network it looks at some traffic before participating.
BRIDGE_HELLOTIME <time>
Periodically, a hello packet is sent out by the root bridge and the designated bridges. Hello packets are used to communicate
information about the topology throughout the entire bridged local area network.
BRIDGE_MAXAGE <time>
If a another bridge in the spanning tree does not send out a hello packet for a long period of time, it is assumed to be dead. This
timeout can be set with this variable.
BRIDGE_PATHCOSTS <costs1 costs2 ... costsN>
This is a space-separated list of costs corresponding to the interfaces in BRIDGE_PORTS. Each interface in BRIDGE_PORTS could have
a different speed and this value is used when deciding which link to use. Faster interfaces should have lower costs.
BRIDGE_PORTPRIORITIES <prio1 prio2 ... prioN>
This is a space-separated list of priorities corresponding to the interfaces in BRIDGE_PORTS. The priority value is an unsigned
8-bit quantity (a number between 0 and 255), and has no dimension. This metric is used in the designated port and root port selec-
tion algorithms.
BRIDGE_PRIORITY <priority>
This option sets the bridge's priority to <priority>. The priority value is an unsigned 16-bit quantity (a number between 0 and
65535), and has no dimension. Lower priority values are 'better'. The bridge with the lowest priority will be elected 'root
bridge'.
BRIDGE_STP <on|off>
Multiple ethernet bridges can work together to create even larger networks of ethernets using the IEEE 802.1d spanning tree proto-
col. This protocol is used for finding the shortest path between two ethernets, and for eliminating loops from the topology. The
spanning tree protocol can also be turned off (for those situations where it just doesn't make sense, for example when this linux
box is the only bridge on the LAN, or when you know that there are no loops in the topology.)
EXAMPLE
Minimal example for a bridge interface on eth0 and eth1, the bridge interface itself is configured via dhcp:
ifcfg-br0
STARTMODE='auto'
BOOTPROTO='dhcp'
BRIDGE='yes'
BRIDGE_PORTS='eth0 eth1'
BRIDGE_PORTPRIORITIES='50 20'
ADDITIONAL INFORMATION
For additional and more general information have a look into <http://linux-net.osdl.org/index.php/Bridge>.
BUGS
Please report bugs at <https://bugzilla.novell.com/index.cgi>
AUTHOR
Stefan Scheler <sscheler@suse.de> -- ifup-bridge
SEE ALSO ifcfg(5), ifup(8), brctl(8).
sysconfig December 2005 IFCFG-BRIDGE(5)