Displaying 20 results from an estimated 4000 matches similar to: "Ping dom0 <-> domU result in "Destination host unreachable""
2020 Sep 06
2
debian 10, vm cant connect to the host bridge
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
2005 Apr 03
3
Problem with fresh two nic installation on FC3
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
2008 Sep 03
6
eth0 on dom0 not working on a bridged conf
Hi,
I''ve installed xen 3.0.3 from packages (xen-linux-system) on a debian
etch, and i''ve configured it with network-bridge script in the default
way (netdev=eth0, bridge=xenbr0, etc...) which is ok for me.
the problem I have:
I cannot ping any outer machine from dom0 (nor any outer machine can
ping me). It gives me a "Destination Host Unreachable" message that
2020 Sep 07
1
AW: debian 10, vm cant connect to the host bridge
someone recommended that i should give br0 the same hardware address as eno2. I did that, and restarted the vm, and it still does not work.
Here is my current host interface config:
ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft
2012 Oct 11
1
Cannot get kvm guests to connect to network
I installed a new CentOS-6.3 kvm guest on a recently provisioned kvm
host also running CentOS-6.3. This guest will not connect to the
network and the host cannot connect to it via its public IP address. I
had previously installed a guest system on thst same kvm host using
the same ISO and that system connects to the network without problem.
I next created a third guest isntance and this too does
2012 Oct 11
1
Cannot get kvm guests to connect to network
I installed a new CentOS-6.3 kvm guest on a recently provisioned kvm
host also running CentOS-6.3. This guest will not connect to the
network and the host cannot connect to it via its public IP address. I
had previously installed a guest system on thst same kvm host using
the same ISO and that system connects to the network without problem.
I next created a third guest isntance and this too does
2006 Dec 11
10
Dom0 network problem
Hello.
I''ve just started with Xen and configuring Dom0.
My hardware is Core2Duo based Xeon server and I installed Debian etch
for amd64 architecture. The Xen related pachages installed are the
following.
linux-image-2.6.17-2-xen-amd64
linux-modules-2.6.17-2-xen-amd64
xen-hypervisor-3.0.3-1-amd64
xen-tools
xen-utils-3.0.3-1
xen-utils-common
My problem is that when xend is
2012 Sep 04
6
Simple routing question
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
2005 Feb 18
0
Howto? 2 interfaces, same network, same gateway
Hello
Summary:
I have ifplugd managing eth0 and wlan0 (both dhcp). When I plug in the cat5
(which brings up eth0) applications which have already bound to wlan0 stop
working, obviously because wlan0 for some reason is unable to get non-local
packets out that interface.
I figured if poodoze is able to have both interfaces working, then linux must
surely be able to do it as well.
The
2007 Aug 13
2
Policy routing question
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
2020 Sep 07
0
AW: debian 10, vm cant connect to the host bridge
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
2005 Oct 23
6
configuring DNS
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:
2008 Sep 19
8
bridge + arp
Hi,
this is propably bridge related and not really a xen problem, but it
might help someone:
Some of our domUs are not able to arp. Arp -n show (incomplete), and
doing a tcpdump shows, that on the dom0''s eth0 the arp request goes out,
the response comes in, but on the vifX.0 interface the arp response is
gone.
dom0# tcpdump -ni eth0
arp who-has 10.32.2.51 tell 10.32.7.70
arp reply
2010 Dec 12
1
heartbeat configuration for lb
hello list!
I am attempting to setup haproxy using a shared up I am trying to
setup using the heartbeat package that I currently have installed:
[root at VIRTCENT01:~]#rpm -qa | grep heartbeat | grep -v -e stonith -e pils
heartbeat-2.1.4-11.el5
heartbeat-2.1.4-11.el5
I have /etc/ha/.d authkeys setup this way:
#
auth 2
#1 crc
2 sha1 {SHA}secret
I have /etc/ha.d/resources setup like this:
2020 Sep 22
4
nmcli: unwanted secondary ip-address
Dear CentOS-Community,
we are facing the following issue:
A secondary ip address seems to be automatically added to a nic which
causes several issues in our setup.
This server is equipped with four nics which are currently in use:
# nmcli con show
NAME????? UUID????????????????????????????????? TYPE????? DEVICE
eno2????? cb6fcb54-be52-4ab6-8324-88091a0ea1a0? ethernet? eno2
eno4?????
2018 Dec 16
3
macvtap and tagged VLANs to the VM
Hi,
I would like to run a network firewall as a VM on a KVM host. There are
~ 25 VLANs delivered to the KVM host on three dedicated links, no LACP
or other things. I have the VLANs 100-180 on the host's enp1s0, the VLANs
200-280 on the host's enp2s0 and the VLANs 300-380 on the host's enp3s0.
To save myself from configuring all VLANs on the KVM host, I'd like to
hand the entire
2016 Aug 29
2
IAX UNREACHABLE : Ignoring bindport/bindaddr on reload
Hi, see the log below
root at AsteriskSlave:~# ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN
group default
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: p3p1: <BROADCAST,MULTICAST> mtu
2005 Mar 26
11
Do i need a proxy??
Goodday,
First my network layout:
dsl router (10.0.0.99)
|
server (eth0 10.0.0.1, eth1 10.0.1.10)
|
3 times windows machine (10.0.1.2, 10.0.1.3, 10.0.1.4)
(all with proxy settings 10.0.1.10:8080)
Now on the server is mandrake 10 installed with shorewall as firewall.
And a apache webserver (and no ftp server).
When i turned internet sharing on it started squid which added a line in the
2005 Apr 01
2
Problems using VMWare with a Bridged Firewall
Hi
I am using Shorewall with a bridged Firewall using the "bridging utils" from
Debian.
eth0 is connected to the router and eth1 is connected to the local lan.
eth0 and eth1 are both assigned zero addresses and br0 is assigned the
Firewall server address of 192.168.0.1
I should point out that Shorewall is working fine in Bridge mode, but I have
hit some problems while evaluating
2005 Apr 02
11
bluetooth nap and internet access problem
Hello,
I''m trying to configure my desktop as a bluetooth network access point for my
ipaq (as explained in http://www.stolk.org/debian/bluetooth.html).
I''m running shorewall version 2.2.1 on debian testing with a local network via
eth0 and internet access via eth1. I''ve created a bridge br0 for eth0 and
bnep0 and activated bridging in shorewall. dhcpd is listening