similar to: routing problem with domU bridged to two networks

I am not quite sure if this issue relates to iptables, routing or Xen virtual machines. Too many variables for my simple mind, so I'm asking some advice :) This is my network setup: Internet --- eth2 + CentOS dom0 / firewall / router + eth1 (xenbr1) --- LAN with private IPs --- separate file server and workstations + eth0 (xenbr0)

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

I want to add the following route command route add -net 192.168.2.0/27 gw 192.168.2.3 via the normal network setup. The result should be the following routing table (the first line): 192.168.2.0/27 via 192.168.2.3 dev xenbr1 scope link 192.168.2.0/27 dev eth2 proto kernel scope link src 192.168.2.4 192.168.2.0/27 dev xenbr1 proto kernel scope link src 192.168.2.3 192.168.1.0/24 dev xenbr0

I added a virtual interface eth0:1 on one of my machines and suddenly networking breaks on startup of the system (eth0 is gone) when xend starts and runs the network-bridge script. This is supposed to be fixed according to: https://bugzilla.redhat.com/show_bug.cgi I checked and the network-bridge script contains this fix. It works fine on one of my PCs when eth0:1 is added, but not on this

I''ve got 2.0.7 running on a machine with 1 physical interface and two bridges, like so -- bridge name bridge id STP enabled interfaces xen-br0 8000.0040f4ce392f no eth1 vif5.0 vif9.0 xenbr1 8000.feffffffffff no

Hey Tom, This is my T-1 slash 27 network btw. How does this look??? for---- net eth0 66.224.62.120 ----dmz eth1 66.224.62.120 This box is for practice Dmz we talked about. with the pratice Dmz server''s Ip 66.224.62.121 routing and interface''s below [root@66-224-62-120 root]# ifconfig eth0 Link encap:Ethernet HWaddr

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

Hello folks, I have a really strange routing problem that no amount of googling and experimenting has been able to solve. Then again, I''m new to Xen and "advanced" networking, so I could be missing something very basic. Summary: an unprivileged domU with PCI frontend for a NIC is used as a router; icmp gets routed, but tcp/ip only partially. I''m using a xen-unstable

I inherited a xen server that is setup to have all the VM images hosted on an iSCSI mounted NAS array. We been experiencing a random (about every 2-3 days) issue where xen would crash all the VMs, leaving nothing but the Domain0 running. What appears to be happening is something causes the iSCI mount to hiccup. Running "vgchange -a y" and restarting all the VMs brings everything up.

Hello, I am having some routing troubles with my Xen setup. I have two domUs, one running as a firewall and another running as a dmz: The dom0 has the following: - eth0 bridge (10.0.0.3/24) The domU-firewall has the following: - Direct passthrough PCI NIC (Public Internet) - Virtual NIC connected to the eth0 bridge on dom0 (10.0.0.1/24) - Bridge called brdmz for the dmz zone (10.0.2.1/24)

Hi, I have a shorewall v4.0.7 installation on an older version of fedora. What is the proper way to add another network to the DMZ interface? Is it through virtual networks? If so, how is that done, given I''ve already designed the system around a single network on the DMZ? I have two physical interfaces on the firewall, with eth0 for external (192.168.1.0) and eth1 for the DMZ

Hi, until now, i have been using Xen 3.0.2. Now i upgraded to Xen 3.0.4. Can anybody confirm, that the ordner in the config files for the network interfaces has not changed? My config file used to read: vif = [ ''bridge=xenbr0'', ''bridge=xenbr1'' ] So inside the DomU, eth0 was attached to xenbr0 on the host and eth1 was attached to xenbr1. Now i upgraded to

I have a Xen DomU configuration that was made in the days before libvirt and virt-install. In this configuration I have: vif = [ ''mac=00:16:3e:05:06:01, bridge=xenbr0'', ''mac=00:16:3e:05:06:0a, bridge=xenbr1'' ] and then in xend-config.sxp I define (network-script my-network-bridge) where my-network-bridge is in the scripts directory and looks like this:

Hi! I have a problem with my new Xen setup. I have installed Debian etch with netinstall and I''m using 2.6.18-6-xen-amd64 kernel in my dom0 and 3.0.3-0-4 version xen hypervisor. I''m using four network cards on my system and using three of them as xen bridges and dom0 is using the fourth one only for it''s own. So basicly both of my virtual servers use a network card

Is anyone using user sets? I''m considering dropping support for them in 2.0 in favor of just listing individual user/groups in the rules file. Thanks, -Tom -- Tom Eastep \ Nothing is foolproof to a sufficiently talented fool Shoreline, \ http://shorewall.net Washington USA \ teastep@shorewall.net

hi all , i use ubuntu 12.04 with xcp , all config run very well except vlan i use xe network-create and xe vlan-create to build vlan 3000 then startup a vm in this network, xapi0 fakebridge and vif1.0 all looks well, use ovs-vsctl list port i can see xapi0 and vif1.0 have beed taged with 3000 but i can not access the internent~~~ somebody can help me with this? thanks.

When I add all interfaces, the internet does not work.... eth0 = interneteth1 = lan ------------------auto eth0 iface eth0 inet static address 192.168.1.254 netmask 255.255.255.0 broadcast 192.168.1.255 auto eth1 iface eth1 inet static address 192.168.0.100 netmask 255.255.255.0 broadcast 192.168.0.255 gateway 192.168.0.254 auto xenbr0 iface xenbr0 inet static

Hey Tom, I have successfully set up to servers on a Dmz practice network woohoo :). If I take out the proxyarp option in /etc/shorewall/interfaces Then Dmz can ping outside ip''s on the net but not and of my servers on network 66.224.62.96/27 (Other than its own gateway server 66.224.62.120) The reason I ask is to learn. I thought I would not need the proxyarp option for this to

Hello, You may recall some of My Dmz question around Thanksgiving. While I have configured a Proxy arp Dmz. I would like to practice with the routed setup you suggested Tom as your network was simular. Here is one of your quotes "The configuration of eth2 is largely irrelevant but you certainly don''t want to confuse things by assigning any default gateway out of that

Hi all, In a bridged setup, how we can set a large mtu(4k) for the interface on domU? Eventhough ''ifconfig eth4 mtu 4000'' command worked in my case, whether it reflect on the actual device? Moreover I can''t set mtu for the bridge as 4k. Setting any value above 1500 mtu shows the following error, xen-152:~ # ifconfig xenbr1 mtu 4000 SIOCSIFMTU: Invalid argument So