Fedora Networking :: Error For Ping Was "network Is Unreachable"
Mar 12, 2009
I installed Fedora 10 and are using KDE. I struggled to get my network up and running - error for ping was "network is unreachable". I eventually got it right by modifying my ifcfg-eth0 file manually.
Now I'm trying to install with yum, but yum fails to connect, probably because of the proxy. I've set the proxy in <System Settings><Network Settings><Proxy> but it doesn't allow me to also add the authorization - greyed out. I've chosen the manual configuration of proxy.
1. How can I enable or allow the adding of authorization in the proxy dialogs or
2. Where is the proxy file which I can modify from command line (and how)?
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Mar 7, 2011
I have two linux servers, I tried to ping from one linux box to another and vice versa but error message is "connect: Network is unreachable" Where as If I tried from windows machine I am getting the reply from both the servers.
C:Documents and Settings>ping bnkprod
Pinging bnkprod.softtech.com [172.20.40.141] with 32 bytes of data:
Reply from 172.20.40.141: bytes=32 time=16ms TTL=64
Reply from 172.20.40.141: bytes=32 time<1ms TTL=64
Reply from 172.20.40.141: bytes=32 time<1ms TTL=64
Reply from 172.20.40.141: bytes=32 time<1ms TTL=64
Ping statistics for 172.20.40.141:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 16ms, Average = 4ms
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Aug 26, 2009
I have 2 live IP based Linux systems .
[Code]...
Both systems connected in same LAN based network . Both WAN live ips are connected through different modems. Problem is that , no system is able to ping or connect with other system with Live ip , though they are able to connect through LAN ip and both systes are accessable and also able to browse internet (google etc..) Ping error :-- Destination Host Unreachable.
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Jul 17, 2011
I installed openSUSE on one of my work system. The network port wasn't working when I was installing, but works fine now (checked in Windows). But for some reason, I am not able to configure the network. I used both Dynamic and Static IPs (both work fine in Windows) but still no go. I am using Yast Control Center for this purpose. I can't even ping the default gateway when I am using custom settings. When I use dynamic settings, it says Unreachable Network.
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Nov 12, 2009
I recently installed Fedora 10 and I'm trying to install a driver for my HP Deskjet F4200 Series All in One printer. I downloaded the proper hplip file and when i go to install it in the terminal it gets to the very end where it is trying to install the missing required dependencies. When it checks for the network connection it comes back saying "error: The network appears to be unreachable. Installation cannot complete without access to error: distribution repositories. Please check the network and try again."I am connected to the internet through hardwire cable (also tried it through wifi) and have no trouble accessing internet through mozilla or downloading packages elsewhere. Any ideas on why my terminal won't recognize my internet connection??
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Jan 29, 2011
I'm using debian lenny.When I boot with kernel 2.6.36, ping always respond with Network is Unreachable. But when I boot with kernel 2.6.26 it works. I can't even ping the dafault router of 2.6.26 kernel when I am at 2.6.36. Also, system/administration/network does not show any connections while it shows something at the other kernel.
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Aug 7, 2011
I am plagued by the following error when attempting port forwarded connections to my minecraft server. Port forwarding is good and test ok on router based firewall. No iptables entries. Natty N, all updates current.
[INFO] Disconnecting CascadianNW [/184.100.247.218:57787]: Failed to verify username! [internal error java.net.NoRouteToHostException: Network is unreachable]
java.net.NoRouteToHostException: Network is unreachable
Some discussion indicate jvm network connection issues related to ipv6, but they are old posts.
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Feb 5, 2010
I all, I 've two computer with Ubuntu 9.10 (desktop version)connected by cross over cable.
I try to connect this computers in LAN with the following command:
ifconfig eth0 [address] netmask [netmask] up
When I ping from first computer to second the output is "Network is unreachable"
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May 25, 2011
I use DNS on my server as a chasing DNS so its not fully configured. I seem to be having trouble with IPV6 addresses. I'm guessing this is linked to the 6to4 tunnel I have set up to my windows box, but I'm not really sure.
Code:
May 21 18:00:16 hyrule named[1148]: error (network unreachable) resolving 'D.ROOT-SERVERS.NET/AAAA/IN': 2001:dc3::35#53
May 21 18:00:16 hyrule named[1148]: error (network unreachable) resolving 'B.ROOT-SERVERS.NET/AAAA/IN': 2001:500:1::803f:235#53
May 21 18:00:17 hyrule named[1148]: error (network unreachable) resolving 'zg.akamaitech.net/AAAA/IN': 2001:503:a83e::2:30#53 .....
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Jan 11, 2010
I've got router with: eth2 - local network (192.168.1.1), ppp0 - uplink (x.y.z.a)
my firewall:
Code:
# Generated by iptables-save v1.4.5 on Mon Jan 11 12:22:25 2010
*raw
:PREROUTING ACCEPT [1038480:666298388]
[code]....
somehow iptables -t nat -A PREROUTING -i eth2 -d x.y.z.a -j DNAT --to-destination 192.168.1.1 helps, but imho there should be some other solution. kernel is 2.6.31.6, architecture is x86_64.
P.S. i've also tried iptables -A POSTROUTING ! -d x.y.z.a -s 192.168.1.0/24 -j MASQUERADE that didn't help either.
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Dec 27, 2010
I've been having a lot of trouble with getting wireless networking devices to work. I guess I have a lot of company, since mfrs don't seem to be very interested in supporting Linux.It seems that one common symptom is that, when I try to "Ping" using the Terminal, I get "network is unreachable".Does this mean anything specific, or is it a general output whenever the network is not carrying on two way communications? Does it mean that the wireless interface is down? Does it mean that the wireless hardware is not transmitting? Not receiving?
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Jan 3, 2011
My ubuntu installation was running fine with the Belkin F7D1101 v1 after using this install method:[URL]..But, after allowing ubuntu to autoupdate many programs (don't remember which ones), the device stopped working. I checked all of the commands in the link above. They are all still functioning. dmesg throws no errors, but it terminates with
<code>ADDRCONF (NETDEV_UP): wlan0: link is not ready</code> Are there any network files which may have been overridden from autoupdate? iwconfig wlan0 shows "Access Point: Not-Associated" What output can I show you to help me find the problem?
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Jan 18, 2010
I want to add this route but I am getting this error message. What is the reason of this problem? I cant add this route? how can i add?
Code: [root@linux/]# route add -net 10.1.0.0 netmask 255.255.0.0 gw 10.2.0.1 eth0 SIOCADDRT: Network is unreachable
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Nov 27, 2010
I cannot access/ping my Debian server. I know the IP is right (ifconfig, route and ip addr) all gave me 10.0.2.25 (route gave me 10.0.2.0).I cannot ping it from any computer in my netwerk, even when I try to ping it from my Debian itself, it gives me Destination Host Unreachable !(Wierdly, I can ping 10.0.2.2 tho).I am using virtualbox when the netwerk options 'NAT' turned on. When I look at my /etc/network/interfaces/ the last line looks like:iface eth0 inet dhcpShouldn't their be some other stuff listed?
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Oct 3, 2010
I have a network printer directly connected via ethernet cable to an Ubuntu netbook, but pinging the printer fails, giving "Host Unreachable". The network light on the ethernet socket is lit green, and there is nothing else cable-connected to the network - just a simple cable connection between the netbook ethernet socket and the Network printer (a HP Laserjet 4200n). Ping works fine if I plug the cable into a different machine (a Win XP box) and ping from there, so it's not a cable or IP address problem.
This sounds simple enough and should work, but I'm stumped. Clues, anyone?
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Dec 15, 2010
I'm experiencing massive latency/unreachable problems on my Linux machine. It's true for all network connections, here's an example of me trying to ping my router:
PING 192.168.0.1 (192.168.0.1) 56(84) bytes of data.
64 bytes from 192.168.0.1: icmp_req=1 ttl=64 time=15115 ms
64 bytes from 192.168.0.1: icmp_req=2 ttl=64 time=14107 ms
64 bytes from 192.168.0.1: icmp_req=3 ttl=64 time=13107 ms
64 bytes from 192.168.0.1: icmp_req=4 ttl=64 time=12107 ms
64 bytes from 192.168.0.1: icmp_req=5 ttl=64 time=11108 ms
[Code]...
I've tried now with both the maverick default kernel and 2.6.37-rc5 kernel (both 64 bit), same result. If I take the card up and down (ifup, ifdown) performance is restored for a little while, then it's back. I've tried changing cable, network card and router port but no luck.
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Jul 15, 2011
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.
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May 28, 2011
I am building a v2.6 kernel floppy disk distro to run on a 1992 computer. FWIW The specs on the computer are
* 66 MHZ processor
* 12 MB ram
* 400 MB HD
* EGA monochrome video card
It runs Linux quite nice actually. I want to get it online with a null modem cable and use the other Linux box as a gateway to the internet. I have networking, TCP and slip support in the kernel. I do now know if I have all the needed network configuration files. I am able to ping 127.0.0.1. If I try to ping the other computer, I get a "network is unreachable" error. Tell me any commands to run on either box and I will attempt to do so. Remember the old computer is running a stripped down toolset since its only two floppies worth.
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Jul 12, 2010
I have recently installed 10.04 on an old box I have sitting around and wanted to include it in my home network. After struggling with Network Manager I went in and set up the files manually.
/etc/hosts reads:
127.0.0.1 localhost
10.0.0.01 one.network one
10.0.0.02 two.network two
[code]....
then the IPv6 stuff
/etc/network/interfaces reads:
auto lo
iface lo inet loopback
auto eth0
[code]...
Now I can access the internet from this machine, but when I attempt to ssh to another machine in the network I get the message "Port 22 network is unreachable" Checking with google I found that there should be some ssh config files. I have one ssh_config but no sshd_config. I don't know if this is relevant. Also "network" is not the name of my network. Changed for anonymity.
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Mar 6, 2010
I have a problem with the Fedora 12 Network Manager - OpenVPN configuration. If I use the same configuration and manually start openvpn (as client) I get connected to the OpenVPN server and I can ping the network that I am accessing. With Network Manager - I get connected but when I try to ping is giving me "Destination host unreachable". The routing table looks similar except that when connecting with network manager is giving me on more route in table
Destination Gateway Genmask Flags Metric Ref Use Iface
xxx.xxx.xxx.xxx 192.168.0.1 255.255.255.255 UGH 0 0 0 wlan0
192.168.0.0 0.0.0.0 255.255.255.0 U 2 0 0 wlan0
192.168.171.0 0.0.0.0 255.255.255.0 U 0 0 0 tap0
0.0.0.0 192.168.0.1 0.0.0.0 UG 0 0 0 wlan0
Where xxx.xxx.xxx.xxx is the IP of the OpenVPN server. When connecting "manually" I this routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.0.0 0.0.0.0 255.255.255.0 U 2 0 0 wlan0
192.168.171.0 0.0.0.0 255.255.255.0 U 0 0 0 tap0
0.0.0.0 192.168.0.1 0.0.0.0 UG 0 0 0 wlan0
What I do wrong in Network Manager? If I try to delete the route with xxx.xxx.xxx.xxx is disconnecting the vpn connection.
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Jul 2, 2011
I have been trying to set up a network bridge for the 2 virtual machines installed on my Fedora 14 host PC. I want the VM's to be able to ping each other and have their own "network" in which they can operate/communicate. What is the simplest way to accomplish this? Most of what I have read revolves around turning off NetworkManager, and the following config files:
[code]...
Once these files are configured and the network is restarted, the bridge should work. Is this true? I have been encountering problems with this process, specifically when I try to link a VM to a bridge.
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Apr 27, 2010
setup my static network connection Here are my details :
IP : 172.16.152.137
Subnet : 255.255.255.192
Gateway : 172.16.152.191
Primary DNS : 172.16.0.1
[code]....
but after this setup when i restart my network #service network restart while bringing up the eth0 the following message is displayed before [OK] - RTNETLINK answers : Invalid Argument now it seems either this setup is wrong or not sufficient to set up the connection, whenever i try to ping 172.16.0.1 it showing connect : Network is Unreachable
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Feb 17, 2009
I've got a problem with 'seeing' other machines on my Network. I have two laptops both with F10 on them however I can't ping either of them. They can connect fine to the internet and ping the router, they are both on the same subnet with Firewalls disabled on both machines. When I try to ping it says: "Destination Host Unreachable". I've tried firing up Wireshark to see if that will give me any clue but even that doesn't show any packets whatsoever from the other machine across the Network. It's like they are completely invisible to each other.
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May 21, 2009
I have connected xp and fedora through crossover cable . xp has ip address 192.168.0.1/24 (manually assigned) fedora has 192.168.0.2/24 with default route equal to 192.168.0.1
I can ping fedora from xp computer but i can't able to ping xp from fedora computer.
I have manully edit the /etc/sysconfig/network-scripts/ifcfg-eth0 file with correct subnet mask and ip address because when i tried to give ip address manully in network manager the subnetmask is replaced with gateway address don't know why.
Now i want to share internet through crossover cable . xp is connected to internet through wireless usb adapeter.
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Feb 23, 2011
This applies to my 2 opensuse PC's, my Windows PC is fine.I can ping a hostname, say "PC1" but I can not ping PC1.domain.local (even the host PC can not ping it's own FQDN). When I ping just the hostname the ping stats even list the FQDN.Onto the next issue, since all my PC's, have the domain prefix domain.local, my Synology can not. I can ping it's IP and that is it. I can resolve it's name with nmblookup just fine tho and that is what is killing me. How is this not resolving.Even weirder, I can browse to "Synology" in Network Servers under places on the slab.
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Apr 30, 2011
I can ping the router, but I cannot ping anything outside of the network. The ping just sits there and eventually times out, no error message. I cannot download updates and it is the only box inside the network having any issues accessing the internet. I am running 10.10 server. I can get a list of packages on the update server, but not download them, it appears to be in an incoming issue. I'm using a motorola Netopia router in bridge mode with a netgear SRXN3205 as a router. Again every other system can download fine. I have tried running on one nic, no help dhcp, static again does nothing. I can pulls host [URL].. and I get
[code]...
It may be worth noting that I set the box up at home on a dlink router and it worked fine, however I am confused why it is the only system on the network having these issues every other box can ping just fine.
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Jul 14, 2011
i have problem ubuntu server network! internet works but #cant ping [URL]... and outside ip?
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Jan 28, 2009
cannot ping internal network
I am a new user to Linux but in the last couple of months gained some Idea about it,I am trying to set up a small network in my office having 3 windows xp PCs, two fedora10 PCsI have an adsl router with 4-port hub connecting to the internet, one switch (say sw1) and one linux PC (say linux1) is connected directly to the router, the three win xp PCs are connected to switch sw1.all the above is working fine, I am able to get connected to Internet In all the systems, and able to network among all the above four.Now I want to make the linux1 as a proxy server for, hence I added another network card into it connected it to another switch sw2, which is connected to another linux pc (say linux2).
I have tried a hundred things, and googled an equal no. and finally posting it here.In order to reduce confusion I have disabled DHCP in all machines, and given static ips insteadNetworkManager was not happy about it, hence to fix my static IP i disabled NetworkManager ('chkconfig NetworkManager off')
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Aug 27, 2010
Is there a way to disable ping in the network instead ping of IP addresses must be hostname or a name.
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May 13, 2011
Even ping google's ip address doesn't work. unknown host error using backtrack4 able to browse net with these settings.
My network settings:
What's the problem with these settings...
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