OpenSUSE Network :: Unreachable, Even With The IP Forward Enable?
Mar 25, 2010
I have one server with 4 network interfaces:
eth0: 192.168.0.0/24 - local lan A
eth1: 200.1.2.3 - internet link - default route
eth2: 192.168.10.0/24 - local lan B eth3: 192.168.20.0/24 - local lan C
Lan A - Default routing to eth0
Lan B - Default routing to eth2
Lan c - Default routing to another server but the workstations has static routing to this server too.
Everything is working fine on Opensuse 11.1 until I upgrade this sever to Opensuse 11.2 ( Reinstall, not update at all ). After upgrade to 11.2 the routing across local lan interfaces simply not work, if you try to ping lan-to-lan you got the message: Network unreachable, even with the IP Forward enable, but the default route is working fine trough the SNAT.
I've come back to Opensuse 11.1 and everything become normal, does anyone have an problem like this? Maybe a bug? PS: I do not try to disable the AppArmor, next weekend I will try Opensuse 11.2 without the AppArmor and post here anyway.
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.
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
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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
Well I have been searching for more than a month now and I think I have read every single post related to this subject and finally decided to make a thread.
Now before I begin I am running Openvpn on my CentOS VPS. I have set static IP's for everyone.
Now what I am looking for is this lets say one of my clients wants port 60005 forwarded through my VPS to the internet what are the correct commands to run.
server-ip:60005 to loacl-ip:60005 Sever IP 24.xx.xx.xx Client IP 192.168.1.2
How do I activate static DNS for mobile broadband. I can't find any place to write down this information. Settings are made in Network Manager - not Yast.
Does anyone know how to permanently enable X connections from all machines on my local network. I keep having to enter 'xhost +' to allow X connections.
I recently installed OpenSUSE 11.2 and everything works fine except wi-fi card, of course. The problem is that after installation the system recognized the card (is was listed in network devices in Yast) but I was unable to enable it through network-manager applet. Though the device could make scanning through terminal (found article in docs but didn't fully understand wpa_gui). Then i was stupid enough to delete the device from Yast list to try to reinstall it. So the problem is that i simply can't do this cause i see no way to re-detect. That is the goal is to at least turn back to post-install system state and try to enable wifi card again.
I am using OpenSuse 11.3 and Network Manager is giving me a headache by not connecting to WEP based wi-fi network.It works in a wi-fi at my office while at my home, it shows / detects the network but keeps asking me over and over.
Network Manager works for a while on Sony Vaio notebook and then it will become disable. Is there an easy way to enable it. I have installed 4 or 5 times to get it enabled. There must be a simpler way then reinstalling opensuse 11.3
# Generated by iptables-save v1.4.5 on Mon Jan 11 12:22:25 2010 *raw :PREROUTING ACCEPT [1038480:666298388]
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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.
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
Flashed bios lastnight on 13.0 desktop. all winblow$ are fine. lspci shows ehthernet card did 'netconfig' and 'route -n' shows default settings as if /etc/rc.d/rc.inetd1.conf were never set. oh yes, i manually edited this too. mv'd and netconfig'd.
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?
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?
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.
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?
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
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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.
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.
I installed centos 5.3 x86 at vrtualbox on windows 7 x64 as host. The ping answers "network is unreachable", ifconfig has an ip "192,168,51,100". At control panel, I seleted intel PRO/1000MT Desktop Host only. Is this centos's problem?
I am new to OpenSuse and want to exchange files wirelessly between Windows and Linux computers in our office. I run 11.1 Gnome on a 64-bit laptop. When I want to share a directory in my Home Folder, I get the message:
'net usershare' returned error 255: net userhare: usershares are currently disabled
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.
How can I enable the network with Networkmanager WIHTOUT logging in in OpenSuse 11.2? If I define a connection for ethernet the System connection is greyed out. I want to use Networkmanager because I have also wireless connections...
i am getting the following error at maillog while i try to enable emailing on Zabbix server
tail /var/log/maillog May 14 10:03:19 localhost sendmail[21522]: o4H63J8U021522: monitor-xxxxx.com [127.0.0.1] did not issue MAIL/EXPN/VRFY/ETRN during connection to MTA
I have a minor problem with Knetwork-manager. When I boot up, it won't connect to my wireless router automatically. I have to right-click the taskbar icon, disable wireless, then enable wireless, then it connects fine.It remembers the password fine and once it's connected, it's flawless. It's just the minor issue of having to effectively 'switch the internet on' rather than it just being connected when I turn on my laptop.
I'm using Opensuse 11.2, KDE 4.3.1 (didn't have this issue with 11.1). I've tried the latest Kubuntu (9.10) and knetwork-manager worked flawlessly but I didn't like the rest of the OS so I came back to Opensuse If I restart, suspend or hibernate it usually connects okay, it just seems to be when I boot from 'cold'.
I've tried nm-applet but same problem. I also tried wicd but it didn't really like my system. I've changed my wireless router recently as well with no change, so I don't think it's that. As I say it's a minor problem, it's not really an issue for me to turn it on each time but it would be nice to clear it up. I've googled and searched since 11.2 was released but haven't found any answers and my linux skills are still a bit lacking.
