Networking :: Vmachine On Bridge With Tap Interf: Ping Start File Transfer And Net Stops Work

Feb 21, 2011

I set up a virtual bridge for a virtual machine (qemu-kvm) using a qemutap interface:

Code:
# brctl show
bridge2 8000.0022648a3dcc no eth5
qemutap2
I can ping and ssh to the server ...
Then I try to copy (scp) a file (2.8 M) to the server and, near the end, the copy stops and the server stops responding to ping and is not able to ping nothing except itself.

"ifconfig down ; ifconfig up" and the server is on line again.

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Ubuntu Networking :: 10.04.1 Desktop - Bridge Stops Eth0 Working

Oct 13, 2010

I am trying to get a network bridge configured but every time I make the changes and restart networking (or reboot) eth0 appears to come up OK but I can no longer talk to the outside world via it. With no bridge defined, I can talk to the web using either wireless or wired; wicd is configured to switch to a wired connection when available (got rid of Network Manager. It didn't recognise eth0(!)).

I want to use the bridge so virtual machines (LXC containers) can talk to the web when the machine is wired to the wireless router. Eth0 gets its IP address (192.168.1.4) via DHCP from the router and I want to bridge to another subnet, 192.168.154.n say, and the containers will have fixed IP addresses 192.168.154.101, 102, 103 etc.

[Code]...

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Fedora Networking :: Configure A Network Bridge To Start On Boot?

Nov 5, 2009

How do I configure a network bridge to start on boot?

I have two network interfaces eth0 and eth1.

Here is my current network script configuration:

Code:
#/etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
TYPE=Ethernet
HWADDR=00:10:18:4e:5e:a7

[Code]....

The bridge will come up if I restart the network service after boot....but it won't automatically come up when the computer starts.

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Aug 12, 2011

It works fine when I boot into Win7 but in 10.10... Nothing..

ifconfig
Code:
eth0 Link encap:Ethernet HWaddr 00:16:76:13:16:44
inet6 addr: fe80::216:76ff:fe13:1644/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1

[Code].....

I've read and read and tried just about everything out there.."If it works in WinX it should work in 10.10"... But it doesn't..

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Jul 15, 2011

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But if I gave ping -I eth1 <IP> then I can ping.

I cannot install any package, so tell me solution which includes not installing any package.

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I want to set up a bridge using bridge-utils within /etc/network/interfaces like is shown here in this guide: [URL] The problem is that, at the same time, I want eth0 to have a specific static IP address. Right now I have a configuration for eth0. This guide tells me that I should not configure eth0 outside of the br0 configuration.

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I followed this tutorial => https://help.ubuntu.com/community/OpenVPN
I'm working on ubuntu 10.10 OS

So everything is ok when i start the tutorial with my interface on code...

The only way I can make it work again is by setting the interfaces back to

auto lo
iface lo inet loopback

>> then reboot
and after that put back the br0 settings in the interfaces en restart the network.

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Apr 14, 2010

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[Code]...

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Mar 10, 2010

i am trying to transfer a file from my live linux machine to remote linux machine it is a mail server and single .tar.gz file include all data. but during transfer it stop working. how can i work and trouble shooot the matter. is there any better way then this to transfer huge 14 gb file over network,vpn,wan transfer. the speed is 1mbps,rest of the file it copy it.

rsync -avz --stats bkup_1.tar.gz root@10.1.1.22:/var/opt/bkup

[root@sa1 logs_os_backup]# less remote.log
Wed Mar 10 09:12:01 AST 2010
building file list ... done
bkup_1.tar.gz
deflate on token returned 0 (87164 bytes left)
rsync error: error in rsync protocol data stream (code 12) at token.c(274)
building file list ... done
code....

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Mar 15, 2010

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When I ping a destination IP address, it responds. However, when I try to telnet or ftp or sftp to the same IP address, it does not connect.

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> telnet > open localhost

[code]....

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ifcfg-br0:
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BOOTPROTO=dhcp

[code]....

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I use my computer as a gateway to the internet for the rest of the house which is split into two LANs. I also have VPN's linking the office side of the LAN to a remote site. All of the PC's other than mine that should have access to the VPN works, but my PC doesnt and I firmly believe this is because I need to add a static route. ping 192.168.10.1 doesnt work but ping -I eth2 192.168.10.1 does. 192.168.10.1 is the remote router on the other side of the VPN. I've tried this route:

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Oct 14, 2009

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Feb 20, 2010

Ok, the only thing I remember doing is changing out my hard drive because it went bad. I swapped in a new one and reformatted with Windows 7. (I can hear the boos and hisses as I type) Anyway, now file transfers are exceedingly slow. They are ~10KB/s when they should be ~40MB/s. The odd thing is that it mostly occurs on large files, but not all large files and sometimes smaller files are affected. Copying files from one hard disc to another on the server, as well as copying from the server to Win7. Local files are not affected. The problem does not occur on my laptop which has Slackware Linux on it.

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