My Eth0 has 3 virtual Ethernet (eth0:1, eth0:2, eth0:3)
Eth0 -> 202.1.1.1
Eth0:1 -> 202.1.1.2
Eth0:2 -> 202.1.1.3
Eth0:3 -> 202.1.1.4
I am unable to ping them (202.1.1.2 - 202.1.1.4) from Client's PC.
I have two machines on this network, one running Ubuntu and the other running Fedora.
When I'm using the Wireless network on the Ubuntu machine, I cannot ping the Fedora machine. Everything else works. I can browse the net fine.
If I switch over to the Wired Network then I can ping the other machine.
I don't understand why ping doesn't work only over the Wireless. I can ping the router so I'm guessing it's getting blocked by the router but I didn't block ICMP traffic.
I tried asking on IRC and they ran out of ideas too to find out where the problem is.
I am unable to connect to the internet at work through the ethernet, previously working. I am not sure of the origin of this problem -- the result of an update or something that I did to the network settings.
In the NetworkManager applet is says Auto Ethernet is connected but I can't ping anything by name or ip address.
The wireless still works without any problem.
I have tried following some of the other threads on similar issues but the fixes proposed on them have not helped to date. And I may have mangled some of the settings files somewhat.
So I keep reading that bonding ethernet devices is supposed to be easy. I have followed several tutorials and tried a few things on my own, and I can't seem to get it right. I currently have a setup that allows me to ping internally on my network, but when I try to ping externally I get the error:
connect: Network is unreachable
Before I bonded the interface my connection worked fine. Here are my config files. I am running centos 5.3 on a virtual machine.
/etc/sysconfig/network-scripts/ifcfg-bond0
Code:
DEVICE=bond0
BOOTPROTO=none
ONBOOT=yes
NETWORK=192.168.1.0
NETMASK=255.255.255.0
IPADDR=192.168.1.211
USERCTL=no
/etc/sysconfig/network-scripts/ifcfg-eth1
Code:
# Advanced Micro Devices [AMD] 79c970 [PCnet32 LANCE]
DEVICE=eth1
BOOTPROTO=none
ONBOOT=yes
HWADDR=00:0c:29:88:59:47
MASTER=bond0
SLAVE=yes
USERCTL=no
/etc/sysconfig/network-scripts/ifcfg-eth0
Code:
# Advanced Micro Devices [AMD] 79c970 [PCnet32 LANCE]
DEVICE=eth0
MASTER=bond0
SLAVE=yes
BOOTPROTO=none
HWADDR=00:0c:29:88:59:3d
ONBOOT=yes
/etc/modprobe.conf
Code:
alias eth0 pcnet32
alias scsi_hostadapter mptbase
alias scsi_hostadapter1 mptspi
alias scsi_hostadapter2 ata_piix
alias eth1 pcnet32
alias bond0 bonding
options bond0 mode=0 miimon=100
output of cat /proc/
Code:
Bonding Mode: load balancing (round-robin)
MII Status: up
MII Polling Interval (ms): 100
Up Delay (ms): 0
Down Delay (ms): 0
Slave Interface: eth0
MII Status: up
Link Failure Count: 0
Permanent HW addr: 00:0c:29:88:59:3d
Slave Interface: eth1
MII Status: up
Link Failure Count: 0
Permanent HW addr: 00:0c:29:88:59:47
I've a weird problem about my honeypot project. All start from installation until running process is going smoothly but when I try to ping my honeyd vm from honeyd host it couldnt but it can be ping from other machine inside my local network. I am also usinng arpd for ARP request reply and standard honeyd config.
View 1 Replies View RelatedI have an ubuntu server that I am using as a gateway router. I have 2 nics in the machine and am using iptables to run the NAT.I now have a need to provide several machines on the inside of the network with their own public IP. So I created a virtual interface on the the WAN card and attempted a 1:1 nat across it, but it's not working. The virtual interface isn't even responding to pings. If I ping the ip of the virtual interface from the outside, it doesn't work. If I run a tcpdump on the interface, I can see ICMP request packets but no replies. Watching the same dump while pinging the non-virtual interface IP results in both request and reply packets. What's stranger the inbound ICMP request packets on the virtual interface seem to be hit or miss. Sometimes when I ping it, I can see the request packets hitting the interface, sometimes I get nothing.
View 1 Replies View RelatedOperating system: Debian Lenny 5.08 (2.6.26-2-amd64 #1 SMP Tue Jan 25 05:59:43 UTC 2011 x86_64 GNU/Linux).
I have a network iface eth0 with 2 virtual IP addresses (117.20.2.111 117.20.2.112). The virtual IP addresses I have setup by simply running:
Code:
ifconfig eth0:1 117.20.2.111 up
This has worked fine for 2 virtual IP's but the third one (117.20.2.133) will not respond to ping's though it does respond to arpping's. There are no firewall iptable rules:
Code:
iptables --list
Chain INPUT (policy ACCEPT)
target prot opt source destination
Chain FORWARD (policy ACCEPT)
target prot opt source destination
Chain OUTPUT (policy ACCEPT)
target prot opt source destination
Output of route -n:
Code:
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
117.20.2.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
117.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 eth0
0.0.0.0 117.20.2.1 0.0.0.0 UG 0 0 0 eth0
Output of ip rou ls:
Code:
117.20.2.0/24 dev eth0 proto kernel scope link src 117.20.2.110
117.0.0.0/8 dev eth0 proto kernel scope link src 117.20.2.111
default via 117.20.2.1 dev eth0
I am trying to setup a VPN using OpenVPN to allow a secure connection between my smartphone and my LAN. I have been reading an OpenVPN book and some tutorials on how to setup the server side, but I'm stuck at how to create a virtual device. The OpenVPN book says when installing OpenVPN the installer (or aptitude to be more precise) should ask me if it should create a TAP/TUN device. The thing is, it doesn't ask me anything at all. It just installs, that's it.
Most tutorials simply tell me to create a new device in the network/interfaces file. Where is the difference? What should I do now? I like having options, that is one reason I like Linux, but this does confuse me. My second question is about the IP range of the virtual adapter. Should it be in the same range as my LAN, or should I use something entirely different?
I am using an virtual machine. where I need to ping from one machine to another. earlier I was able to ping. But after going to google.com once, I cannot ping back to this machine.
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.
I have installed redhat 9 on my pc i want to configure samba i connect these two pc with cross cable i given both c class ip add when i going to ping from linux pc getting ping but xp getting ping
View 3 Replies View RelatedMy Internet Router is on 64.1.1.1
I have 2 NICs in my Linux Box: (Firewall OFF)
Eth0 -> 64.1.1.2 and cross-cable connected to Internet Router (64.1.1.1)
Eth1 -> 192.168.1.1 Connected to switch hub
Default gateway of Eth0 is to Internet Router (64.1.1.1)
From Linux-Box.. I able to ping to internet(ie. ping 202.158.3.7)
Client PC: (Firewall OFF)
Default Gateway is 192.168.1.1
I am unable to ping to internet (ie. ping 202.158.3.7)
I have Linux server with VMware Server 1.0.8. When I creating a virtual machine, I can not "send" a PING to the virtual machine. In the virtual machine, I have installed CentOS 5.3 (32bit). In the virtual machine I have defined the addresses IP. So, whey I can't "sent" a ping to the virtual machie? I have to set something on the Linux server?
View 3 Replies View Relatedi have Fedora 13 dual booting with Win XP and i cannot ping my router in Fedora. just reinstalled and i'm still unable to ping my router.everything looks like it was installed correctly except in the ifcfg-eth0 it has IPV4_FAILURE_FATAL=yes dont think this should have a value of yes.
View 13 Replies View RelatedI have am having some network troubles. I can't access my samba share. Trying to resolve this I realized I couldn't ping from ubuntu to windows. (default ubuntu.jaunty.server.x64)
Windows IP..192.168.002.021
Ubuntu IP...192.168.002.020
Laptop IP...192.168.002.031
Router IP...192.168.002.001
[Code]....
I have ubuntu 10.4 running on both my desktop and laptop. Both machines are connected to the router in wireless mode with Wifi.I can access internet from both machines without any issues, however I cant ping one machine from another. (and vice versa)
View 4 Replies View RelatedIn my office i have a network of 172.16.31.0 and a squid proxy server running, all other systems have windows XP and one system has centos. On centos system i have three lan cards and i want to test some things on it. So i assigned another IP on it of range 192.168.7.0/24 and same range on another windows system. And all the systems connected through a same network switch.
Unable to ping between Centos and Windows system. If i ping from one centos to windows system with the series of 172.16.31.0 then it replies very well but same thing is not happening in other 192.168.7.0/24 IP series.
I have a router which have 4 ethernet ports(eth0,eth1,eth2,eth3,eth4 ) & One ADSL Line & One USB, I need to configure My router eth3 as a WAN & eth0 as a LAN using iperf, I am going to findout test a my Application(using iptables) whether my application is correct or wrong As of now I configured like server pc1(192.168.1.230)--->eth0(gw)(192.168.1.1)Router--eth3(gw)(192.168.2.1) -->pc2(192.168.2.157). For eth3 as a WAN and eth0 as a LAN. But I am not able to ping between two pc's.
View 1 Replies View RelatedI have a windows 7 desktop hardwired to my wireless router and a windows xp laptop connecting wirelessly on the same network. I am able to ping the windows 7 box by its ip address but unable to do so by its hostname. This is very inconvenient since I would like to set up a share by hostname (doesnt change) and not by ip (changes occasionally since its dhcp).
View 8 Replies View Relatedi have installed linux debian in my computer but i have aproblem , i have a ping only on my computer itself , not to gateway or other computers on my network .
Ip : 10.0.88.9
Gateway : 10.0.88.1
dns :10.0.88.7
note:when i have installed system i have no internet connection so it is not installed updates
I did a new install of Fedora 14. This is my first time using Linux seriously and I am trying to figure it all out.
I am able to ping my hostname of sinbad only from the linux system itself. On all my windows boxes, I am not able to ping it. I can only ping the IP address.
Here is /etc/hosts:
Quote:
I disabled the firewall, disabled SELinux, and still not able to ping it.
Here is the info from ifcfg-eth0 :
Quote:
Quote:
I have installed Micro Core onto a usb of mine and am running it on my laptop. I have been able to successfully obtain a connection and valid ip with my router. As you can see below my wireless connection seems valid computer-end and on my router's page it comes under the list of attached devices.Although this is all fine and dandy, I'm am unable to ping my router or any other computer on my network, I am also unable to ping my laptop from other computers on the network. Also by the looks of it I have having no trouble transmitting, but I am not receiving any packets.
[Code]...
I can ping a host on my LAN successfully, but I cannot ping [URL]... for example. I have disabled the firewall and set http_proxy and can browse the internet with "Use system proxy settings" checked in Firefox. I am unable to update with yum either, but I am not sure if this is a side effect or not. I have run a trace on my ip address as I am browsing the internet and I can see the sites I am visiting on our web appliance. However, if I try to ping or update no requests are hitting the proxy so I don't think that is the issue.
View 6 Replies View Relatedwhen I was still at my university room where the connection would work after a few reboots. After moving back home the connection worked on and off for a day before not working at all. NetworkManager is telling me that I am connected and have an ip address, etc, but nothing is able to get an internet connection. I am able to ping myself but am not able to ping my router. Everything works fine on M$ and other PC's on the network, it's just my ubuntu 10.04 that is playing up.
View 9 Replies View RelatedTried turning firewall off, i tried port forwarding tcp port 22, but it still doesn't work. Also am unable to ping modem over WAN, i can ping the modem locally though. Tech support claims pinging and ssh is not part of the internet so they wont support it in any way.
View 6 Replies View RelatedI just setup a new LAMP server (CentOS 5.5 x86_64) box with channel bonding on NetXtreme II BCM5709 Gigabit Ethernet (IBM x3650 M3). The problem is I wasn't able to connect to this server when I'm in different VLAN's. This server also unable to ping different VLAN's. But everything works fine when I transact in the same VLAN.Here's the config:
Datacenter VLAN = 9
Firewall = Disabled
SELinux = Disabled
[code]...
I run an centos server. From the console I can ping google.com and get a reply. But when I ping another address say xyz.com, the IP address is resolved (11.22.33.44) but there is no reply. In the same network in our office from my desktop I ping [URL] and there is a reply.I turned of the firewall but still the same problem.
View 9 Replies View RelatedI had this sticky problem with b43 drivers. Unfortunately, on my Acer Extensa 5620z I'm not even able to connect via ethernet, so I can't download upgrades, driver or whatever. This was initially with 11.04, so I've decided to get back to 10.04, but the problem persists. Then, here we go with details:
networking checked - is enabled.
Ip configuration (I've got static local address) - is ok.
Ifconfig - recognizes eth0.
Iwconfig - recognizes wlan0.
Ping - 100% packet loss, always.
dig - goes on timeout.
netstat -an - doesn't show any connection with external address.
After I applied below iptables rule.. I am unable to ping the host in 172.16.1.0/24 from OpenVPN client
View 1 Replies View RelatedI have a workstation with the two ethernet ports (eth0, eth1), the problem is that i cannot run with both ports up and running. I can run with either one of them, but not both.
Below is the contents of my /etc/network/interfaces file:
Code:
Running on 64 bit Ubuntu 9.10 Desktop
I have just installed a generic PCI ethernet card into a fairly low powered system (Celeron 766MHZ, 512mb Ram, 40 Gb HDD, Generic sound and video). The card came with no drivers. I have since installed Ubuntu 9.10, and up to a point everything is fine and looks great. However when I connect an ethernet cable up to the PCI card (in the hope of connecting with the Internet), nothing happens. I am thinking that I need Ubuntu drivers for the PCI card ? or does Ubuntu 9.10 come with drivers and I need to go into the 'engine room' to sort it all out ?
View 1 Replies View Related
