Ubuntu Networking :: Have Single Cable Connection To Switch Carrying Two Subnets?
Mar 15, 2011
how i can use VLANs. as i have red on the web, it is possible to have a switch to allocate ports to a single VLAN. thus splitting subnets on a port allocation. since i have a pc running KVM, it is possible to create multiple subnets for DMZ and LAN. thus my question is - is it possible to have a SINGLE cable connection to a switch that carries TWO subnets? so that i can decide how to distribute then on the pc?
View 7 Replies
ADVERTISEMENT
Nov 27, 2010
I have a 2-floor house, with a single ethernet cable from the ground floor to the 1st. Downstair there is my ADSL modem, which is connected to the router upstair through this one cable. Now, I would like to have some more ethernet ports on the ground floor, but there's no room left to run another cable between the floors, so here's the big question: can I run both the modem-router connection and my regular LAN (which are on different subnets) through that one cable, with a switch at both ends?
To make it a little more clear, here is my present configuration
Code:
DOWNSTAIR UPSTAIR
ADSL Modem ------- Router --- Clients
Here is what i would like to do:
Code:
DOWNSTAIR UPSTAIR
ADSL Modem ---- Switch ------ Switch ----(WAN Port) Router --- Clients
Clients ---- ----(LAN Port)
Would it work?
View 6 Replies
View Related
Dec 13, 2010
I am find myself in need of building what amounts to 3 ip networks on 1 physical lan.
first LAN is another companies network on the 10.0.0.0 network a mix of pc's and equipment
second is LAN new company network 192.168.168.0/24
third network is an ip phone system for both i would like to use 192.168.200.0/24
i am hoping to use the same dhcp server to do this, assigning address to the old company's 10. network via mac address reservation.
View 9 Replies
View Related
Jan 10, 2010
I've got a Laptop with wireless broadband connection which needs to be connected to a desktop machine so that the internet connection could be shared. Both has got Ubuntu 9.1. I don't have a router or a switch. I just need direct connection with a cross over cable.
View 5 Replies
View Related
Apr 7, 2010
I have a wireless connection with static ip 192.168.10.150 to connect to Internet through a modem / router ADSL ip Lan 192.168.10.1. I connect with no problems. I have a wired network in the office 172.16.17.0/24 to work with the servers. the router is 172.16.17.1, my connection eth0 with static ip 172.16.17.150 work, but Internet by Internet nothing. If i disconnect the cable i have Internet from wireless. ?? What i have to do to ,to received internet by wireless and be connected ate same time to my wired network by eth0 too.
all routers have DHCP active.
View 2 Replies
View Related
Apr 15, 2010
I recently installed the vt6656 wireless pci card that came with my zotac motherboard. I can associate with my ap and get an ip address successfully. When I disconnect my ethernet cable, however, my wireless interface stops responding (can't ping it). The box itself is in a place where I don't have a monitor connected to it so I cant see anything since my ssh session gets killed as soon as I disconnect the ethernet cable.
What would be the reason why the ehternet cable being unplugged, disconnects my wifi card as well? Does something get triggered? I did some testing with iptables, blocking the 8080 traffic to the wired interface, and noticed that the 8080 traffic also gets blocked to the wifi ip. I'm afraid that this never worked properly to begin with.
View 1 Replies
View Related
Sep 21, 2010
I am trying to run a cable from my wireless router over a 75ft cat6 cable to my bedroom. I don't get any connection on my end and I don't have any other ideas. I did setup a m0n0wall box just to try. I got the network led on my server to light up in my room but nothing more than that. Lastly, I tried adding a 5 port switch in my room and then connecting that to my server and nada.
View 4 Replies
View Related
Oct 13, 2010
I've been reading too much and understanding too little. What I have: Lucid laptop & desktop. Both have ethernet > hub > internet. What I want: connect them directly by the serial ports so the laptop can access the desktop's drives, and the desktop can be retired from the internet. I've got an old DB-25 null-modem, last used for multiplayer Doom. The laptop's dock has DB-9, so the connections is desktop > null-modem > Belkin DB-25 - DB-9 cable > laptop.
I had hoped this post would get me somewhere:[URL].. No such luck. When I ping 'grin.local', the connection is through the internet. If I disconnect the hub, i cannot ping.
Dunno if there's something more I should do to enable serial connection in Lucid, or if my null-modem is no longer good. I'm also rather curious how "grin.local" manages a connection through my ISP's system. These are DHCP. Shouldn't that have required the full numerical IP?
(It's nothing to do with the hub. Checked that by connecting a third box to the hub. My ISP only hands out two IP. I couldn't ping the third box.)
View 5 Replies
View Related
May 2, 2010
I have a desktop running Ubuntu 8.04. I installed 10.04 on my laptop. When I mount my desktop music folder on my laptop and transfer files, they now only go at 100-200 KB/s. When I had 9.10 installed, they transferred at 1-2 MB/s.
This is the command I use to mount the directory:
sshfs matt@169.254.6.233:/home/matt/Music/ /home/matt/Music/desktop/
Is there any way I can speed it up to get it back to max speed?
View 1 Replies
View Related
May 2, 2011
How do I make share internet connection with playstation 3 with Linux Mint? I have put ethernet cable between them.
View 1 Replies
View Related
Jan 22, 2011
I have a strange problem that I cannot diagnose -- slow wifi. About two or three weeks ago, I noticed that my wifi began to slow down dramatically. The problem is the same on my ubuntu laptop and my ipad. But when I connect directly to the router with a network cable, my connection is fine. So it is definitely a problem with the wifi signal itself.
What I have done so far:
(1) I checked all of the MAC addresses connected to my wifi. I identified my tivo box, laptop, and ipad. Nothing else.
(2) I used [I]wifi analyzer[I] on my android phone and selected an unused wifi channel (channel 8).
(3) I changed the username/password on my wifi signal. I also changed the password for my router's admin privileges.
(4) I restarted my router and computer.
None of this helped.
I am using a Netgear WGR614 wireless router.
View 3 Replies
View Related
Jan 28, 2011
OS: Maverick Ethernet driver: tested with sky2 an sk98lin This has been driving me crazy for the last few months: if I unplug ethernet cable while my laptop is on reconnecting it sometimes does not bring the connection back.
And once ethernet is gone nothing that I try seems to consistently bring it back. Rebooting, disabling/enabling the driver, disabling/enabling NIC in BIOS, changing driver from sky2 to sk98lin, deleting connection from Network Manager, resetting the router - nothing helps. It seems to come back randomly a few weeks later. Once I used live Ubuntu on a USB stick and ethernet came back not only on a live distro but then when I rebooted also on my main OS. But when I tried that trick next time ethernet was missing in the live distro as well.
Also once I was able to revive ethernet but compiling sk98lin driver, blacklisting sky2 and rebooting. Of course next time doing the same routine did not help. The thing is - ethernet works fine with either sky2 or sk98lin and I can unplug the cable and plug it back in most of the time without any issues. But then every so often - bang and I'm stuck with only wireless until ethernet suddenly starts working again.
View 1 Replies
View Related
Dec 12, 2010
Running 2.6.29-gentoo-r1 on a Sun Ultrasparc 10 with a Sun Happy Meal on eth0 connected directly to my cable modem. Intermittently, with a frequency between a few hours and a few days, I lose internet connectivity. Running ifconfig eth0 indicates all is well and I have a valid IP address but I cannot even ping the cable modem's management address; pings to 127.0.0.1 and eth0's IP address do get a reply but no other address I've tried does. I can 'fix' the problem by issuing
Code:
If I check the CM logs, it appears that it has rebooted itself prior to the loss of connectivity. The strange thing is that the incoming traffic doesn't seem to be affected by this, my PSAD log is full of incoming scans even during the periods when I can't connect to the net. I suspect this is an ISP problem (they own the CM);
View 2 Replies
View Related
Jan 24, 2011
Running Gentoo with kernel 2.6.29 on a Sparc Ultra 10. I'm having problems with my cable modem connection failing, so I've added a static route that enables me to log into the modem's diagnostics page at 192.168.100.1 when the connection drops; my /etc/conf.d/net looks like this (with the comment lines removed).
Code:
dns_domain_lo="MYNETWORK"
config_eth1=("192.168.0.1 netmask 255.255.255.0 broadcast 192.168.0.255")
config_eth0=("dhcp")
routes_eth0=(
"192.168.100.1/32 via 0.0.0.0"
) dhcpcd_eth0="-N"
This works but after a period of several hours to several days, this static route disappears from the routing table.
View 1 Replies
View Related
Jul 28, 2010
I have just taken on a dedicated server sitting somewhere in Norfolk. I have created a website that uses PHP to connect to another remote server in order to interrogate a MSSQL database. This script, running on Apache, uses a VPN connection to connect to the remote server.To test, I have Apache on my laptop at home and just used Microsoft Network Connection to create the VPN connection.I have now uploaded this site to my new CentOS server and need to create the same VPN connection. I understand this is a command level and have been advised to use OpenVPN which I have successfully installed.My problem is I only have the details remote ip address, username and password. I believe I have to use the 'client.conf' script instead of server.conf.
View 1 Replies
View Related
Jan 15, 2011
I am new to linux and also new to this forum. I love how light Slax is but it won't let me connect to my wifi. It scans and finds my router but the option to switch to the network is grayed out. How can I fix this problem?
View 1 Replies
View Related
May 27, 2010
I am attempting to get a Dual Monitor Display using aticonfig (and/or manual editing my xorg.conf file). My graphics card (a Radeon HD 4350 with latest ati drivers ) has only a single output but I am using a splitter cable to connect it to two monitors.
I am want one monitor to be 1600x1200 and the second monitor to be 800x600.
This is the command I had tried to no avail.
aticonfig -fq --initial --dtop=horizontal,reverse --resolution=0,1600x1200,1280x1024,1024x768 --mode2=800x600
What am I missing? Should I be using this configuration utility? Or should I be trying to manual edit my xorg.config? All the information I have been able to find seems specific to Dual Head Displays.
EDIT: It occurs to me to post my edited xorg.conf file
Quote:
Section "ServerLayout"
Identifier "Default Layout"
Screen 0 "Screen0" 0 0
Screen 1 "Screen1" RightOf "Screen0"
InputDevice "Keyboard0" "CoreKeyboard"
[Code].....
View 2 Replies
View Related
Apr 19, 2010
When there is a power failure at my university for about 30 minute, my computer stays up because of a UPS, but the switch it is connected to via ethernet is reset. After this, my machine loses network connectivity until I manually select the network using nm-applet.
In System -> Preferences -> Network Connections, the network has the "Connect automatically" box checked.
However, in /etc/NetworkManager/nm-system-settings.conf, there is a line that says:
Code:
no-auto-default=00:30:48:b0:11:07,
and that is the MAC address of the ethernet card.
I'm running Ubuntu jaunty.
View 3 Replies
View Related
Apr 7, 2010
Can Cat5e RJ45 connector crimper be used for Cat 6 connector because I heard cat 6 connector is different from cat 5e connector and also same question for cable tester can cat5e cable tester be used for cat 6 cable?
View 1 Replies
View Related
Jan 18, 2010
I have created the following script
Code:
#!/bin/sh
interface=`ifconfig | grep -iE "(wlan0|gprs0)" | awk '{print $1}'`
[code]...
View 14 Replies
View Related
Jul 21, 2010
I am having issues switching between dual monitors and a single monitor.
I have a Dell laptop with an NVIDIA graphics card that I use with a docking station attached to a monitor.
My problem is that if I shutdown without first changing the NVIDIA settings back to the single monitor (the laptop's screen) when I boot with the laptop undocked half the screen is on the monitor that is not attached.
Is there a way to switch between dual and single monitors without using the NVIDIA settings.
View 3 Replies
View Related
May 26, 2011
Figured out a straight shot at connecting to the Internet in Fedora 15. Follow these commands.
1.)****** SWITCH TO ROOT USER if you don't have privileges*******
2.) cd /etc/sysconfig/network-scripts
3.) rm ifcfg-XXXXX (DO NOT REMOVE THE IFCFG-LO)
4.) system-config-network
-> Once in this screen, press the enter key on "Device configuration"
-> Configure your network statically. ( I did the following.) Name: leave as default Device: Leave as default DESELECT "Use DHCP" Set Static IP as 192.168.2.117 (or 192.168.1.117) Set NetMask as 255.255.255.0 Set "Default Gateway IP" AND "Primary DNS Server" to 192.168.2.1 (or 192.168.1.1)
[Code]..
View 4 Replies
View Related
Jan 28, 2011
I recently hooked my television up to my computer as a second monitor so that I can watch videos on it. However, I don't always want to be in dual monitor mode. I've found that running "gksudo nvidia-settings" allows me to switch between the two modes without restarting X if I change some settings around and click "apply".
Is there a way I could setup two scripts to handle this process? The main problem I'm encountering is the fact that I change all the settings through the nvidia-settings graphical interface; therefore, I have no idea what's actually happening behind the scenes, so I don't know how to go about putting the two scripts together (what commands to issue, etc.).
View 7 Replies
View Related
Oct 4, 2010
So my problem is: With internet cable I have connected to modem which support IPTV, so I can watch it, and I can't browse. With my wireless connection I browsing, and I can't watching IPTV.
I need anwser to this if can I set cable connection to only VLC (with which I can watching IPTV), and wireless connection to other programs or only Firefox?
P.S.: I'm using Ubuntu 10.04 64 bit.
View 1 Replies
View Related
Feb 16, 2011
I have a network routing problem that I need to fix using a PC with ubuntu installed.
Here are the details of my problem:
- I have two networks.
- The first network is an ADSL router with subnet 192.168.1.x. I do not have access to the router nor change any of its configuration.
- The second network has a subnet 172.26.x.x and connect via a wireless access point. Some of the devices connected to the network require to have static IPs.
- I have a PC with ubuntu installed and two ethernet cards: one connected to the first network and the other connected to the access point.
- I need to share the internet connection between the two networks using ubuntu. I already tried before on windows and the sharing worked when both networks were configured to use the same subnet. Once I changed the subnet of the second network, internet sharing stopped working.
View 1 Replies
View Related
Feb 21, 2011
im on node1 when i type the command ssh node2@ip the terminal hangs up a bit then an error message stating that connection timeout but here is a thing: i cant ping to node2
but i can terminate the ping manually using ctrl+c when i terminate the ping usual message appears stating 10 packets transmitted, 100% loss
ps: when i go to node3 and ssh to node2 it works fine and also i can ping from node3 to node2 very fine. and the firewalls are down at all nodes -all wired connection over a switch
View 6 Replies
View Related
Nov 2, 2010
I have a Ubuntu server with multiple NICs and I'm just thinking about a potential scenario that might come up soon.
Imagine I have a network on floor 1 with an independent cable connection to my Ubuntu server -> switch -> assorted devices, on the subnet 192.168.0.x Now imagine friends upstairs have another independent network with cable -> router -> assorted devices, on subnet 192.168.1.x.
How can I set up my server to provide access for the 1.x subnet to the 0.x and vice versa. Ideally the devices all access internet from their appropriate subnet. I've read something about bridging, is this what I need?
View 1 Replies
View Related
Mar 9, 2010
I just built my first pc, installed ubuntu 9.10 and tried connecting to the net through my ethernet cable and all that happens is it says cannot find server. Do I need to install network settings & if so what & where,or should it automatically detect them? As this is my first build I am a novice but am willing to listen & learn.
View 3 Replies
View Related
Jul 7, 2010
I have a firewall between two different subnets. The reason for the second subnet within the internal network is because I have a mail server that I want to protect. However, we need to make sure that the mail server can communicate with the internal network as well.
Mail server is 192.168.100.100
Firewall is 192.168.100.1 and 10.110.101.5 (and its gateway is 10.110.101.1 to the router)
I go to another workstation and ping the mail server. I can't. It times out. I do the same from the mail server. It times out as well.
View 1 Replies
View Related
Jun 26, 2010
I have two subnets which I am interested in connecting.
Some basic network details:
Subnet A:
Subnet B:
I am trying to think of any further relevant details, but that seems to be it to me. If I forgot anything, please tell me.
Ok the question. WHAT do I type? (Explicitly!) And WHERE do I type it? In order to reach ubuntu-01.tec.lan, or ubuntu-02.tec.lan from perpetrator.tec.lan or rapine.tec.lan?
I'm interested in using actuall ROUTES. I can already achieve results similair to this with either a NAT firewall, or with VPN.. but that's not what I am interested in.
From what I have found out so far, I should need something like the following:
On Gateway 1B:
Code:
And on Gateway 1A:
Code:
View 5 Replies
View Related
