similar to: arp moved from to

Hi, we''re running 4 xen servers on our network with multiple network cards. During HighLoad we experince degeneration of inbound network traffic through our loadbalancer. I might found a reason for it, in Dom0 dmesg output looks as follows: [1157421.975910] eth0: received packet with own address as source address [1157421.975957] eth0: received packet with own address as source

I've run into a problem on my KVM host where a single guest will be unreachable to other guests on the same host. This host has 2 bridged devices and guests assigned to each have the same issue. I've noticed that when I can't reach the problematic guest, the ARP entry for that system is incorrect. This issue seems to only be a problem about 75% of the time when making connections

Hello, The basic details of my host and XEN configuration and network configuration all appear below. Whilst I have come this far, a lot of it has been intuitive so I now have plenty of questions. Firstly I would like some help and clarification with regard to ebtables and especially how it works in a Virtualized environment on Novell SUSE 10 SP1 (1) ebtables Installation ebtables was not

I must have something configured wrong somewhere. I''ve enabled proxy-arp on my shorewall 2.0.7 firewall. Works fine for what its supposed to do, I can see all the machines through it great. However, whenever its enabled, the network on the DMZ goes screwy. I''ve narrowed it down to this: when proxy arp is enabled for that interface, like such: echo 1 >

XenServer build date: 2010-11-30 XenServer build number: 39265p XenServer version: 5.6 Feature Pack 1 Guest OS: CentOS 5.6 Guest Kernel: 2.6.18-238.9.1.el5xen Hi everyone, we have set up several Xen servers with the version mentioned above. The version is the same on all servers, the kernel is the default one, not patches or self compiled versions. Each Xen server has 6 network interfaces (eth0

I don''t know if there was a problem in the archive or not, I just wanted to link to this post of mine, but I could not find it in the archive. So here''s a re-post. -------- Original-Nachricht -------- Betreff: [Xen-users] Xen, NIC bonding, ARP problem Datum: Fri, 30 Mar 2007 10:05:45 +0200 Von: Dominik Klein <dk@in-telegence.net> An: xen-users@lists.xensource.com Hi

Hi all, I''m searching for a tutorial how to setup multiple network cards with xen network bridge setup in debian lenny. My problem is, bridges seams only to work if i put an ip adress in dom0 to them. Thanks, Alex _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users

Shorewall 4.5.1.1 I have 5 interfaces on a centos box, the first two are internal on two different subnets, the next two are two different ISP''s and the last one is a private network for testing and administration. The second internal subnet (eth1) is rejecting all the arp requests to it and I get the following in the log files ever second or two - May 16 05:28:54 services kernel:

Hello Tom, I have successfully configured proxy arp subnettinng on my network with three hosts in a Dmz. And it works great. (using proxyarp in interfaces) I also tryed this on network below same trouble. However for this network below I have tryed to configure one host in a Dmz (using /etc/shorewall/proxyarp) which works and comes up after I set it up and clear Isp''s arp

hello there, im running a 3interface inet, dmz, loc. i have some public ip addresses. one public address is the router of the provider, the second one is the linux box running shorewall. all other public interfaces are on the dmz nic with proxy-arp. now whenever i do a traceroute (the dmz boxes are windows, icmp traceroute) the very first hop gets timeout/stars, then the router of the provider

Hello, I''m new to Xen (and this mailing-list) and facing some problems with the network. I''m stuck and don''t know how to continue. And Google isn''t very helpful either... My setup: - Ubuntu 7.10 for dom0 and Debian 4.0 for all domU - 4 physical NIC (DHCP from my ISP, internal LAN, DMZ & WLAN) - 1 Dom as firewall/router - 1 domU with internal services

Hopefully this is an easy question.... I''m using a leaf router (bearing) running shorewall. Three interfaces net, loc, and dmz. Only one computer in the dmz and its being proxy arp''d. External and internal (net and loc) can reach the dmz but the dmz cannot reach the isp''s gateway and beyond, but can reach a system adjacent to the firewall.

Hello everybody. I could not find an answer to my problem in the archive. (But that may just be me :-) ) I have a problem with proxy arp and connection from loc (localnet) and from the firewall. Works fine from internet to dmz / proxy arp and vise versa. I have a feeling the solution is simple, but I''m no guru in Linux routing etc. The problem seems to be the routing setup. loc -

Please bear with me as I know I have included a lot of detail. Description Redhat AS 3 Kernel 2.4.21-47.0.1.ELsmp eth0 HWaddr 00:07:E9:11:30:76 inet addr:192.168.1.3 Bcast:192.168.1.255 Mask:255.255.255.0 eth0:1 HWaddr 00:07:E9:11:30:76 inet addr:192.168.3.1 Bcast:192.168.3.255 Mask:255.255.255.0 This interface is up but with no IP address eth1

Hello, Where can I find a link (or docs) to *working* network config for xen 4.1.2? My tests (s. below) were not successful. Thank you in advance for any hints. Regards, Mark # --- root@xen411dom0:~# cat /etc/network/interfaces # Used by ifup(8) and ifdown(8). See the interfaces(5) manpage or # /usr/share/doc/ifupdown/examples for more information. auto lo iface lo inet loopback auto bond0

Hi Alex, and thanks for your time. Probably not. The servers are only configured like they where when they where parallel to the fw. Just the default gateway, same as for the external interface on the fw. That''s what the documentation instructed to configure the servers using arp. But is it required with extra configuration on the server connected via proxy arp? Or is it some parameter

Running CentOS 5.4 x64. Have successfully bridged eth2 with br2 by following the instructions here: http://wiki.libvirt.org/page/Networking (under the RHEL section) Have been running several KVM VMs successfully via this bridge. I am now trying to bridge additional interfaces by using the same routine. Each bridge is named to correspond with the ethX device its bridged with. Example of

Here is a puzzle. I have a network with several servers. It''s a mess. It''s a /24 and pieces and servers are all over the place inside this /24 block, on both sides of the firewall. For example, the router at 1.2.3.1 is outside the firewall and many of the servers at 1.2.3.nnn/24 are behind the firewall. (Obviously, 1.2.3.nnn is a fudged network.) eth0 points outward to

Hi all. I have a problem with pciback in OpenSUSE using PVM. I try to send 3 nic for the PVM.. its ok.. but.. if i try ifconfig eth3 up.. got the error... Please.. see this. Anybody.. know this problem? Thanks, Junior opensuse:~ # uptime 3:36pm up 0:03, 2 users, load average: 0.02, 0.06, 0.02 opensuse:~ # uname -a Linux opensuse 2.6.27.7-9-xen #1 SMP 2008-12-04 18:10:04 +0100 x86_64

Hi @all, I tried to setup xen 3.3 on centos 5 Update 2. I used the following packages: http://bderzhavets.blogspot.com/2008/08/install-xen-3.html The server has 4 physical network interfaces and i want to use them all. eth0 => only for host (configured with static ip) eth1 => first vm (configured with static ip) eth2 => second vm (configured with static ip) eth3 => all other vm