OpenSUSE Network :: Ping Between Two Guest Os On Two Different Subnet Masks
Mar 15, 2010
Step 1 : In Hyper-v Machine i have created two Virtual Ports.
Step 2 : Now for these two diff ports two ip address with different subnet mask(e.g 192.168.9.19 and 192.16.9.20)have been assigned(and have checked using ifconfig).
Step 3 : In Host machine i have added one subnetmask for one machine next one for another machine,however i m not able to ping both the ports from either of the machines having static ip 192.168.9.13 or having ip 192.16.9.107.
Step 4 : If i add same subnet mask for both machine it is pinging properly between 2 machines.
i am doing a project in which i have to use xen to create virtualised environment.I have already done this. now i am using the following setup
host os :- opensuse 11.1with ip 192.168.9.19 and with aliasing ip 192.16.9.14 guest os1:- opensuse 11.1 with ip 192.168.9.107 guest os2:- opensuse 11.1 with ip 192.16.9.13
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.
I have a machine running the 32-bit version of openSUSE 11.2 that can't seem to get outside the subnet (TCP/IP works properly inside the subnet). I've researched this problem, and I just can't seem to solve it. The machine originally had 2 LAN cards in it. I failed to remove it before the install of openSUSE. One card was an old Network Everywhere, and the other was a 3Com 3c905c card. I decided to keep the 3com in, as I've good luck with this particular card when it comes to Linux. I've since removed the other, not only from the machine itself, but also from YaST ('Network Settings').
I can't see much in /var/logs. I've sifted through them several times. I don't see anything that really stands out. I've tried switching network control from ifup to network manager and back. That didn't seem to help. I've tried a static IP configuration and that doesn't seem to help either. I've also removed Avahi just to make sure my variables here are kept to a minimum (I don't use Avahi anyway, so it doesn't hurt).
The network is a 10.0.0.0/24 subnet with a default gateway of 10.0.0.1 (NAT). I have only 2 other PCs on this subnet - a Windows XP Pro machine, and a dual-booting laptop (XP / openSUSE 11.2). Both of them work fine. The gateway is a Linksys WRT54G router that I've flashed with DD-WRT (latest stable version). It handles DHCP for my small subnet. I have not made any changes to the network configuration / setup in a long, long time.
I installed apache2 on my Ubuntu machine and I am trying to access the server from another subnet. The server is connected using ethernet and has a static ip address. I can ping from the server to any machine in the other subnet but non of the machine on that subnet can ping the server. iptables does not seem to be running
Code:
# service iptables status iptables: unrecognized service
I have been trying to get a DHCP PXE server up for a few days now, this is what I got so far..I am following this how-tohere are some outputs and what-nots, go to the last one to see the problem I am having.the host network
Code: :~> /sbin/ifconfig br0 Link encap:Ethernet HWaddr 00:19:DB:62:97:20
I am using centOS 5.0. After I change from DHCP to static IP address, I cannot ping hosts on the same subnet. The error message says destination host unreachable. Before I made the changes I was able to ping and now even I change it back to DHCP I still cannot ping with the same destination host unreachable message. The centOS is running on VMware on a Windows host.
After pinging 192.168.0.106 (106 is on and other host can ping it), arp -a shows ? (192.168.0.106) at <incomplete> on eth0 I tried different ways by disabling the firewall and and disabling SE protection. No Luck.
I was able to build a NFS server and a NFS client using OpenSuse 11.3 and connect them together using gigabit ethernet through a switch. These are the only 2 devices on this net (192.168.1.xx). I tried to set the MTU to 9000 and 9014 but learned that the Realtek 8169/8111 only support up to about 7200 MTU. So I inserted Intel NIC cards on both and set both to 9000. The system accepts this and I can ssh from one machine to the other. Both NFS client and server start w/o issue and the client mounts the device just fine. But when I try to copy a file on the NFS client from the local disk to the server, the client just hangs and I have to physically turn the machine off in order to get it to work. Both systems are using the stock software from the DVD (I didn't update either).
I just installed open Suse 11.3, and I cannot SSH my school. Upon further investigation I could not even ping any machines outside my local area network. Ironically I could nmap machines outside my local area network.
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.
I'm new to SuSe and lateley I was trying to establish a Network, when some weired problems occured. I was able to establish the network and i have connection to the internet. The suse-machine is rechable by ping from all the other computers in the network. If I'm tryiing to ping the other computers from the suse-machine, nothing happens. The router responds without packet loss, but every other ping occurs in:
From 192.168.2.6: icmp_seq=2 Destination Host Unreachable From 192.168.2.6: icmp_seq=3 Destination Host Unreachable From 192.168.2.6: icmp_seq=4 Destination Host Unreachable From 192.168.2.6: icmp_seq=5 Destination Host Unreachable
I've been searching for some ideas to solve this problem but couldn't find any.
i have installed virtualbox on centos , and installed xp as a guest os. my LAN is on 10.200.2.x/24 network inorder to avoid conflict i have given centos ip as 10.200.2.191/24 and a virtual ip 192.168.56.4/24 my gateway is 10.200.2.1 i am able to ping from my guest os to host os the ip address but not the gateway inorder for internet connectivity
I have VirtualBox v3.1.0 r55467 running on f12 2.6.31.6-162.fc12.i686. The guest is Windows XP SP3. I need to enable bridged mode for the virtual network interface on the guest. Everytime I enable bridge mode the following error occurs.
Quote:
Failed to start the virtual machine Windows XP. Failed to open/create the internal network 'HostInterfaceNetworking-wlan0' (VERR_SUPDRV_COMPONENT_NOT_FOUND). One of the kernel modules was not successfully loaded. Make sure that no kernel modules from an older version of VirtualBox exist. Then try to recompile and reload the kernel modules by executing '/etc/init.d/vboxdrv setup' as root (VERR_SUPDRV_COMPONENT_NOT_FOUND). When I run '/etc/init.d/vboxdrv setup' i get the following compilation error:
Quote:
Stopping VirtualBox kernel module [ OK ] Removing old VirtualBox netadp kernel module [ OK ] Removing old VirtualBox netflt kernel module [ OK ]
[code]....
dmesg gives me nothing. I have scoured the web .. and even asked on #vbox and #fedora cant get.
I have to ubuntu machine (9.10 and 10.4) with a openvpn tunnel between them.This is the situation:
Code: NetworkA 192.168.0.0/24 | UbuntuA br0:192.168.0.3 (openvpn bridge between eth0 and tap0)[code].....
UbuntuA has one only interface etho and there are two openvpn instance: one bridge istance with br0 and another instance with tun0. UbuntuA is not the gateway for networkA. UbuntuB is the gateway for NetworkB.I need to comunicate between pc on networkB e those on networkA.This is the "ping situation" (no pc tested has an active firewall):
ubuntuA vs ubuntuB: OK ubuntuB vs ubuntuA: OK pc on NetworkA vs ubuntuA and ubuntuB: OK[code].....
i'm trying to setup a permanent CIFS share from my nas, but it keeps prompting for a password dispite GUEST access set on the share.FStab is as follows:
Code: //192.168.0.253/media/ /mnt/nas1_media/ cifs guest,_netdev 0 0 if i do
Not sure if this post belongs here, but here it is.
Host: Win server 2003 Guest: Ubuntu server
Host: IS able to ping guest. Firewall is OFF. NOT able to access guest (which is a web-server) at browser. Guest: NOT able to ping host. Running a web server, you can check the website: (pegajosa.com) is running under that virtual Linux server.
Problem: guest needs to access host's sql database and/or any resources.
I'm a Windows person and will soon be tasked with UNIX/LINUX projects. I'm trying to learn as much as possible in a very short period of time. I'm very familiar with VMPlayer and VirtualBox. Recently I installed OpenSUSE 11.3 as a guest OS on VMPlayer (bridged network). The host is WinXP. I have also enabled shared folder to the host @ CRepositoryInstalls. Question - How do I access the shared folder from OpenSUSE (the guest OS) and vice-versa?
OpenSUSE installed in a Virtualbox Virtual Machine and I want to set a shared folder.
1 - Set up a Virtual Machine and install OpenSUSE 11.2
2 - Create a shared folder on host (HostFolder)
3 - Setup the shared folder in Virtualbox Via the Virtual Machine details or via Devices > Shared Folders...
4 - Install dependencies for running the Virtualbox installer You need to install the right development kernelpackage for your machinetype (use 'zypper search -i kernel' to see what's installed) sudo zypper make gcc kernel-source kernel-hosttype/default-devel
5 - Run the Virtual Machine and go to Devices > Guest Additions This mounts an iso image in your OpenSUSE guest.
6 - Open a root terminal and run
cd /usr/src/linux make oldconfig && make prepare && make scripts && make dep cp ../linux-obj/$HOSTTYPE/default/Module.symvers . make prepare
* A commenter on previously mentioned thread says this step is unnecessary but it doesn't work without on my system. I suggest trying step 7 first and returning to step 6 if that fails. *
7 - Run ./VirtualboxLinux yourhosttype .run from the mounted iso image.
8 - Create shared folder in OpenSUSE (GuestFolder)
9 - Test with sudo mount -t vboxsf HostFolder /home/user/GuestFolder It works? Great! Let's set up the system so it automounts for your regular useraccount instead of root-only access.
10 - Add this line to /etc/fstab HostFolder /home/user/GuestFolder vboxsf defaults,uid=1000,gid=1000 0 0
11 - It works for me but if it still doesn't automount after a reboot; sudo mount -a
I'm running openSUSE 11.2 (Linux piura 2.6.31.12-0.2-desktop #1 SMP PREEMPT 2010-03-16 21:25:39 +0100 x86_64 x86_64 x86_64 GNU/Linux) and have a network problem. At work, ethernet works fine. When I plug it into my DSL router at home (which works with other computers), I encounter the following behavior: ping can resolve host names, however, traceroute and Firefox and Thunderbird cannot. It happens for both wired and wireless connections.
unreachable computer's ifconfig reports xxx.xxx.xxx.37 but when I ping that address from another computer it says "Destination Host Unreachable" (all the other computers on the LAN can ping each other except this one particular computer)I can ping other computers from the unreachable computer just fine...
I have TWO L3 + router switch (say switch1 and switch2). I created VLAN100 with VLAN ID 100 in both the switches. I created router 192.168.1.1/24 in Switch1. I created router 192.168.2.1/24 in Switch2. Switch1 is connected with 1.x/24 PCs. PCs are configured with 1.1 gateway. Switch2 is connected with 2.x/24 PCs. PCs are configured with 2.1 gateway. Both Switch1 and switch2 are connected by a trunk to carry VLAN100 data.
1)I have few PCs of 1.x connected to say Switch1 Is it possible for PC with IP 192.168.1.100(x) to ping PC with IP 192.168.2.100(y)?What are the configuration required in both switches to make them communicate ? All the device in both the subnets should ping/communicate with each other.
2)Move PC (192.168.1.100) to switch2. Move PC (192.168.2.100)to switch1.What will happen when PC(1.100) ping (2.100) and vice versa?What will happen when PC(say 1.80 in switch1) pings PC (say 1.100 in switch2) and vice versa? What will happen when PC(say 1.80 in switch1) pings PC (say 2.100 in switch1) and vice versa?
Originally after an installation of openSUSE 11.4, I had no internet connection at all, even when connecting with ethernet cable. But then I tried switching back to YaST and then back to Network Manager, and restarted a couple times, and now I have internet connection. DNS is also working, for Ping. The problem is that firefox does not use DNS and cannot resolve host names. I can use Firefox with IP numbers.
I have configured connection properly through mobile phone (SonyEricsson C510) by bluetooth. I get dynamic IP address and can ping everything but can't ping my IP adress which was automaticaly granted, from outside. SuseFirewall is stopped.
I installed Redhat Enterprise linux server5. it has two LAN card and two subnet connected to these two LAN card. i can browse network from these two network easily. But i created VLAN on one network card.Now i cant browse network from these VLAN subnet.
I'm living at a friend's right now, and he's got a wireless access point in the house that I set my laptops wlan0 interface to route through the eth0 to my desktop. It's been working fine for internet sharing and internal networking ( ssh and ftp ) between the laptop and the desktop, but there's a problem with both subnets being able to communicate with each other, and I haven't been able to solve it with DNAT either.
The wireless access point is 192.168.0.1 and has its own lan on 192.168.0.0/24 of which my laptop is 192.168.0.5. I setup the little subnet I created by routing with the laptop to 192.168.1.0/24 and my desktop is 192.168.1.50. With shorewall I can configure iptables to DNAT all of my ssh traffic destined to 192.168.0.5 to 192.168.1.50, but the problem seems to occur when ssh on my desktop fails to connect rather than the DNAT failing.
Using iptraf I've seen that all of the routing does work properly, because I can see on the connection in iptraf that only the SYN packet is being sent from a 192.168.0.x address, there is no ACK packet sent back. I believe this is because in the connection dialog it always shows a 192.168.0.x ip as the source of the connection, but I don't have a route to 192.168.0.0/24 from 192.168.1.0/24 setup and I'm unsure of how to do so.
I'm pretty much in over my head because I don't know what is wrong, I thought it should work like this. Everything else from port configurations, to the configurations of the software itself seems fine so I don't think it's anything like that preventing a connection, but I can't think of what it would be aside from the lack of routing between each subnet.
Is there anyway to just add a route so that 192.168.1.0/24 and 192.168.0.0/24 can communicate with each other directly? I know there should be, I'm just not at all sure how it would be done.
