similar to: Cannot get kvm guests to connect to network

CentOS-6.6 We have a host that has multiple IPv4 addresses aliased to eth0. The primary address is 216.185.71.x and the alias is 192.168.6.x. This host connects to devices on both netblocks without problems. Only default routing is used and it looks like this: #ip route 192.168.6.0/24 dev eth0 proto kernel scope link src 192.168.6.x 216.185.71.0/24 dev eth0 proto kernel scope link src

We use a dual homed CentOS-6.3 host for our Internet gateway router. Its internal nic (eth1) is configured such that the address 192.168.0.1 is one of its aliases. # cat /etc/sysconfig/network-scripts/ifcfg-eth1:192BOOTPROTO=none BROADCAST=192.168.255.255 DEVICE=eth1:192 IPADDR=192.168.0.1 IPV6INIT=no MTU="" NAME="LAN - Non-routable" NETMASK=255.255.0.0 NETWORK=192.168.0.0

On 10/5/2014 1:56 AM, Bhasker C V wrote: > On 04/10/14 21:13, The Cop wrote: >> On 10/4/2014 8:46 PM, Bhasker C V wrote: >>> On 04/10/14 15:36, The Cop wrote: >>>> Hello, >>>> >>>> I am trying to assign an IPv6 address to one of my guests. I followed the >>>> following guide, unsuccessfully: >>>> >>

Hi folks, I read quite some posts about "Destination host unreachable" problems before, but none could help me to solve my issue. So here we go: This is what I am using: SUSE Linux Enterprise Desktop 10 SP1 - Current with all updates Network configuration of my dom0: foobar:~ # ip a 1: lo: <LOOPBACK,UP> mtu 16436 qdisc noqueue link/loopback 00:00:00:00:00:00 brd

This is my system info: Debian Release: 10.5 APT prefers stable-updates APT policy: (500, 'stable-updates'), (500, 'stable') Architecture: amd64 (x86_64) Kernel: Linux 5.4.60-1-pve (SMP w/16 CPU cores) Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US:en (charmap=UTF-8) Shell: /bin/sh

Hi all, My setup is Debian testing dom0/domUs with a 2.6.32 pvops kernel from Debian unstable. Hypervisor is 3.4.2 from Debian testing. I use network- and vif- route with a default route in domU pointing to the nic because multiple IPs with bridge would trigger port shutdown on the switch (only one mac-address allowed per port). A subnet is routed to the dom0, which then knows which addresses the

I am trying to setup GRE between two CentOS 4.5 boxes. I have tried several variations of what''s listed below, but none of them work. box1: modprobe ip_gre ip link set gre0 up ip tunnel add gretun mode gre local 66.1.1.161 remote 66.1.2.161 ttl 20 dev eth0 ip addr add dev gretun 10.253.253.1 peer 10.253.253.2/24 ip link set dev gretun up ip route add 10.2.0.0/16 via 10.253.253.2 box2:

Hi, I have a testing multihome setup, with the default gateway being one of the links and using policy routing to honor requests for a specific link. Everything works as expected when I request a specific IP to bind to. But if I request a specific interface things fall apart in ways that I can not explain: default gw (WORKS) ---------- rabbit@Thesaurus:~$ ping -c 1 yahoo.com PING yahoo.com

Hello I have DSL 2000 (2048 kbit/s download and 256 kbit/s upload) I have ping to fast sites very high: 64 bytes from w2.rc.vip.scd.yahoo.com (66.94.234.13): icmp_seq=3 ttl=50 time=2185 ms 64 bytes from w2.rc.vip.scd.yahoo.com (66.94.234.13): icmp_seq=4 ttl=50 time=1983 ms 64 bytes from w2.rc.vip.scd.yahoo.com (66.94.234.13): icmp_seq=5 ttl=50 time=1826 ms and I know why. I have 2 interfaces:

I should have what i want to achive. The server is intended as a host for VMs. Our network has multiple VLANs, and the VMs will be connected to different VLANS. The interface eno1 is for host traffic and eno2 is connected to the trunk port of the switch, making the different VLANS availabel to the VMs via the br0. I want to use a VLAN-aware br0, so that I specify in my VM config (on the host

Hello Peter, Your question is similar to my recent question, and I have a similar Ping problem.But yours, with two Tinc networks, is more complex than mine. All I can say, and I hope it helps, is that in my case I have found my Ubuntu Tinc Server nodes do not like being specified as a address on the same network as the local LANsSo I have a specific network for the Tinc Server nodes, and in this

Hi ALL, Here is a weird problem comfusing me for a long time. i''v installed xen 4.0.1 with linux kernel 3.1.0-rc9+ Everything works fine except i cannot ping to the gateway in a PVM domU. i''v installed bridge-utils and brctl show like this bridge name bridge id STP enabled interfaces eth0 8000.00219b480d56 no

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 10/4/2014 8:46 PM, Bhasker C V wrote: > On 04/10/14 15:36, The Cop wrote: >> Hello, >> >> I am trying to assign an IPv6 address to one of my guests. I followed the >> following guide, unsuccessfully: >> https://www.berrange.com/posts/2011/06/16/providing-ipv6-connectivity-to-virtual-guests-with-libvirt-and-kvm/

I''m trying to shape traffic on a Devil-Linux box. This note was originally sent to their maillist, because the LARTC list appears to have been down for the past few days. My mailbox was just flooded with a half dozen or so confirmation requests in response to my repeated attempts to subscribe to this list. ---------- Forwarded message ---------- From: drew einhorn

Hi all, I''m running some tests with netem and I noticed some strange behaviour that looks like a bug: I''m pinging another machine and adding delay with netem. When I tell netem to give me a 10ms delay, it works fine. The problem is that when I ask for a 11ms delay, it gives me 20ms! It happens for any value between 11ms an 20ms, and it repeats for values over 20ms, now

Hi, My bridging stops when I start a third Xen domain !?!? I have a few domains setup (mail, wiki, pbx). If I start two domains bridge networking works great. But if I start a third, either the new domains does not work or one of the other DomUs stops working! By stop working I mean I can''t route traffic outside of Dom0. I have been looking at this on and off for a couple of weeks.

On 04/10/14 21:13, The Cop wrote: > > On 10/4/2014 8:46 PM, Bhasker C V wrote: >> On 04/10/14 15:36, The Cop wrote: >>> Hello, >>> >>> I am trying to assign an IPv6 address to one of my guests. I followed the >>> following guide, unsuccessfully: >>> >

Hi I used the command "ip -6 addr add 2001:DB8:CAFE:1111::12/64 dev eth0" to add ipv6 address and can see it in ifconfig but can't ping it Why? Thank you # ping6 2001:db8:cafe:1111::12 PING 2001:db8:cafe:1111::12(2001:db8:cafe:1111::12) 56 data bytes >From ::1 icmp_seq=1 Destination unreachable: Address unreachable >From ::1 icmp_seq=2 Destination unreachable: Address

Hi, Greg, Eddie, I found that in SR-IOV + HVM environment, ping latency depends on ping interval. The NIC is Intel 82576 (1000Mbps), server uses xen-4.0.1, domain-0 is kernel-2.6.32 and HVM is kernel-2.6.31. The server and client are connected through a 1000Mbps switch. The data is as following: # ping -i 1 192.168.0.21 PING 192.168.0.21 (192.168.0.21) 56(84) bytes of data. 64 bytes from

Hi, I''m having problems with new Shorewall installation on Fedora Core 3 (had same problem with Core 2 and upgrade did not help even iptables was upgraded from 1.2.9 to 1.2.11). I''ve followed two nic example, but starting Shorewall drops all connections and don''t permit any outgoing requests, even with "all allowed" policy. Policy file is below. Current setup