Networking :: Separate Assigned IP To Another Network / Sub

Mar 31, 2011

I have been issued 16 IP's my my ISP. Obviously my subnet is 240. is there a way I can take one or any of those IP's and somehow make them into their own network on my end? Really what I am wanting to do is take my 2 DNS servers that are really on the same network far as my assigned subnet and IP's, but take at least one of those IP's and sub-network? it out to the other DNS so it appears to be on another net work. like just simply assign it 192.168.219 or something like that.

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Networking :: Configuring Multiple Separate LANs In Same Physical Network

Jun 27, 2010

For some simulation, I am trying to configure a setup of 3 ubuntu desktops (one of them with multiple network cards) to behave in the following way:

Each one of them should be a separate network not seeing the others (including multicast addresses) They need to have internet access through the machine with multiple network cards. So from the point of view of each machine they define a LAN in which it is the only device and have internet access through the gateway machine.

What do I need to do to configure these machines for the above setup?

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Security :: Restrict Access To Network To Only Dhcp Assigned Ip's?

Feb 28, 2011

I'm trying to tighten up my network a bit. I've given my dhcp server a list of static mac addresses and ip's for computers i know, and a very short range of dhcp addresses that are redirected to kittenwar.My dilemma is that if someone has my wireless network password, or an ethernet cable, they could set the ip address manually and gain can i deny them this pleasure?im running dhcpd3, and iptables on a debian/lenny intel 2.4 box. dd-wrt is running in a linksys wrt54g and is handling the wireless security

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OpenSUSE Network :: How In World Do I Configure SSH With DHCP Assigned Address

Aug 7, 2011

I am just trying to get SSH working between 2 local machines on OpensSuse 11.4 boxes. I have the SSHD daemon running, the firewall is configured to allow SSH to pass, and I am using SSH's password authentication. However, my machines cannot see each other. Anytime I try to SSH, I get "Could not resolve hostname<hostname>: Name or service not known."

Of course, that leads me to believe I need an entry in my /etc/hosts file. However, I use DHCP, and therefore have a dynamic IP address. Therefore, my hosts names will only be good until the next IP renewal. How in the world do I configure SSH with a DHCP assigned address?

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OpenSUSE Network :: Firewall Settings - Configure - Interface Isn't Assigned To Any Zone?

Apr 20, 2010

I have a work desktop plugged into the work network. As I opened my firewall settings I noticed that it is turned off. My question is how should I configure it? I saw that the interface isn't assigned to any zone... I should assign to internal zone and open some port that I need in order to work? There are some guidelines for configuring the firewall?

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Ubuntu Networking :: IPv6 Addresses Cannot Be Assigned

Sep 18, 2010

I'm trying to assign like 80 IPv6 addresses on eth0 for virtual webhosting, but after 55 addresses I get the following error:# ip addr add 2a01:9f8:a171:1651::4b:a8af dev eth0 RTNETLINK answers: File exists.What's the problem? I don't understand that error message at all. Is the number of IPv6 addresses per device somehow limited?Ubuntu 10.4.1 server, 64 bit.

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Ubuntu Networking :: Can Same IP Assigned To Eth0 And Wlan0

Mar 23, 2011

I'm running Ubuntu Server 10.10 on a 64 bit laptop (also have GNOME installed just for convenience), and have a website up using apache2. I am wondering if it is possible to configure both eth0 and wlan0 to the same local static IP address? I would like to walk around my house and do stuff when I want and still have the website accessible, but also be able to jack my laptop back into the router when I am away, just for peace of mind.

Is this possible? If it is, do I need to do some configuring in apache2 to tell it to use another device? Is this even a smart way to get what I want done?

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Fedora Networking :: Apache Listen To Assigned Port 80

Aug 29, 2010

On Fedora 13 is there anywhere else on the system that I have to change to get Apache to Listen to an assigned port, something other than 80. Suppose for instance I wanted Apache to Listen on port 94. I told by the site that their router is forwarding apache to port 94. That doesn't mean I change the Listen in httpd.conf. correct. Apache is still expecting connection on port 80 but in this case 80 then gets forwarded in the router to 94. This is my understanding.

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Ubuntu Networking :: Remote Access Without A Static/assigned Ip (behind NAT)

Feb 8, 2011

I have 2 ubuntu PCs, which are connected to the internet without an external IP (behind NAT). How can I access one from another?

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Networking :: Ping Global Inet6 Addresses Assigned Between Two Systems?

Mar 13, 2010

Do any one knows how to ping global inet6 addresses assigned between two systems. I assigned inet6 address through "ip addr add 2001::4 dev eth0" and similarly 2001::5 in another machine and tried to ping 2001::5 from 2001::4, but it is showing,

sait87@static-host:~$ ping6 2001::5
connect: Network is unreachable

Do any one knows solution for this problem.

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Networking :: Configure Dhcp Server - Ip Is Not Getting Assigned To Client Machine

Nov 1, 2010

i hav configure dhcp server. but the ip is not getting assigned to my client machine.

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Ubuntu Networking :: Wireless Connection Drops - Access Point Not Assigned

Aug 19, 2010

I have Ubuntu command line only installed on my HTPC (it is XBMC Live installation). Kernel is 2.6.31-16-generic. My wi-fi card is AW-NE770 from AzureWave (mini-pci on Zotac Atom motherboard). I have successfully configured wireless connection to my router. Unfortunately, after short period of time connection drops. When I restart /etc/network/interfaces all goes back to normal. When connection is dropped, iwconfig shows that access point is not assigned. I have already tried installing backport drivers, removing security on the network (WEP and WPA), assigning static IP or using DHCP. Nothing works. I know it is not the router or my internet because I can be at the same time on my laptop and that works fine.

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Ubuntu Networking :: Assigned IPV4 Settings Manually - No Internet Connectivity

Jun 20, 2011

I am new to UBUNTU. I installed the latest one alongside windows 7. I am having problem with the internet connectivity. I configured the static ip settings right I guess. Edited the Auto eth1 and assigned ipv4 settings manually and entered everything correctly.

Address 192.168.xx.xx
DNS Server,

Do I have to put MAC Address as well? Which is addressed as 'Network address' in Windows where I put this MAC. I have on board Realtek RTL8101E Family PCI-E Fast Ethernet NIC (NDIS 6.20) Network adapter. Do I have to install the driver?

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Software :: Using Two Network Interfaces Simultaneously In Separate Programs

Jan 19, 2010

I'm not sure if this is possible, but it seems like it should be, since a linux box can act as a router. I want to be able to use two separate network cards simultaneously (one wired, one wireless) in separate programs.

Example: I want to browse the internet on my wired eth0 interface, and simultaneously run bittorrent on my wireless wlan0 interface (which is connected to an entirely separate network). If I need to use multiple user accounts, then that is fine.

P.S. I'm running Ubuntu 9.04

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Ubuntu :: 2 Separate Users Accessing Network Folder On 1 Computer

Aug 8, 2010

I've just added my wife as a seperate user on my desktop and have a question about shared network folders. So /etc/fstab mounts network folders from a second computer and until today I've mounted them to /home/David/NetworkData

This of course means that when my wife logs in she won't see them since they're not mounted to her home folder. So what folder should I use and what tricks so that we both have it visible and accessible in Places from the top menu?

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Ubuntu Networking :: Assigned Computer A's Static Ip To Computer C Without Changing Dhcp Setting?

Aug 18, 2010

I set up a dhcp server in the lan and assigned static ips to two computers, computer A and B, according to their mac address. Everything was running fine. But when I turned off computer A, connected computer C to the network, and assigned computer A's static ip to computer C without changing dhcp setting. Computer C was able to access the internet. When I turned on computer A, dhcp couldn't assign an ip address to it, and computer C showed an error message of ip conflict and failed to use internet. I wonder if dhcp server is able to prevent other computer from using the same static ip that is already assigned to a computer according to its mac address.

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Networking :: Program To Assign Globa LIPv6 Address And Bind() To The Previously Assigned Address?

Apr 24, 2010

Consider the following program:

#include <stdio.h>
#include <stdint.h>


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Ubuntu Networking :: Ubuntu And Win Won't Ping But Address Gets Assigned

Dec 4, 2010

I have two machines

1. Ubuntu (static IP, running dhcp server)

2. Windows 7 (dhcp assigned IP based on mac - >

Now when I fire up both machines, Linux assigns IP to win BUT they dont ping. From ifconfig I know:

eth2 Link encap:Ethernet HWaddr 00:1b:21:7b:2d:68
inet addr: Bcast: Mask:
inet6 addr: fe80::21b:21ff:fe7b:2d68/64 Scope:Link


Now I get time exceeded icmp every time I try to ping both from linux OR windows...

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Networking :: Connect Apps Through NAT To Separate Intranet

Nov 29, 2010

I have client workstations on separate intra-net LANs. Both intra-nets use network address translation (NAT) or masquerading on the LAN. The private network IP address should not matter (unless it does). When LAN-1 connects with an exterior web site, it will leave a record of the ISP public IP address. A LAN-2 connection could read this record, but how would it know how to reach into LAN-1? How can a network application running on a LAN-1 workstation find and connect with a network application running on a LAN-2 workstation? There is a utility called "woof" where one workstation presents a limited feature web browser for access by other hosts on the same LAN.

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Networking :: Connect Separate Home Networks?

Dec 13, 2010

I have my main network with internet and DHCP which is on 192.168.x.x with a router.Now I have set up an Ubuntu file server and i want it on a separate home network with static ip addresses range of 10.x.x.x. and it is also connected torouter.So i will have two networks, one private static with no direct internet access, and the other with internet and DHCP. I want to know how I would "bridge" these two networks so that I could access my file server from the DHCP network. How is this typically done?

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Networking :: Separate Hardware Address On Virtual Interface?

Oct 30, 2010

how to do a virtual interface under linux. I'm using for example eth0:1 so ifconfig eth0:1 netmask for example.

However if i do eth0:1 hw ether 00:11:22:33:44:55 It changes eth0 as well. Where should i look into for creating a separate virtual interface that's simply bridged with one of the existing interfaces that has a separate ip and hw address that the os handles.

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Ubuntu Networking :: Share Files Across Separate LANS Using 2 Routers

Dec 22, 2010

I have 2 routers, each are assigning IP with DHCP on. One router is plugged into cable modem second router is downstairs plugged into first router. Wire runs in WAN of second router. Each router has its own IP subset. First router assigns IP's to second router IP's to

I know I can use the second router as an AP with DHCP OFF. BIG BUT though is my wifi verizon phone got no IP assigned when running like that and wirelessly connecting to the second router. Laptops were just fine. SO, I reconfigured second router with its own subset IP being handed out. Now verizon phone is perfect.

How can I share files between connected PC's using it this way?

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Ubuntu Networking :: VNC And Dual Head Setup (separate X Screens)?

Jan 2, 2011

I have my computer set up to use separate x screens for both of my monitors and almost everything works perfectly. With this set up I don't have any problem displaying flash in full screen on either monitor like I had with twinview. I have it set up this way so that I can use my TV to display mythtv and still use my computer monitor to browse the web, etc. The only problem is that I use my iphone with hipporemote to give me a wireless keyboard/mouse. When using twinview this was not a problem as it was just one large desktop spread over two monitors.

However, switching to separate x screens seems to have broken the functionality of the vnc server. When using my physical keyboard and mouse I can just move the cursor off the side of monitor 1 to control monitor 2, however, if I'm connected via vnc the cursor gets "trapped" inside the active monitor. I can interact with each screen as expected but if I want to switch the mouse/keyboard focus to the other monitor I have to go to the computer and move the mouse to the desired monitor, which obviously defeats the purpose of using the iphone as a wireless remote.

So my question is this. Is there a way to assign a hotkey combination to switch the focus of keyboard and mouse that the vnc server is controlling? Or could I set the vnc server to only control one of the two x screens?

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Ubuntu Networking :: Assign An IPv6 Address To Separate Users?

Apr 15, 2011

I have an Ubuntu 10.04 server/router with IPv6 internet connectivity (I have an internet routable /64 subnet). Since I have this abundance of IPv6 addresses I wanted to try and assign v6 addresses to specific users on the local system. I've been looking at ip6tables with packet mangling but I don't seem to be able to find out how to do this or if this is even possible.

Current configuration: eth0: Local network, has the /64 IPv6 public range active and the IPv4 LAN range. tun0: 6in4 tunnel with a ISP assigned public v6 address. eth1: Standard IPv4 internet connection.

All users on my system use the v6 address configured on tun0. I want to force them to use the /64 range which is configured on eth0. If I can force users to use a specific v6 address, I'll configure more then one v6 address on this interface based on the users userID on the system.

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CentOS 5 Networking :: Routing 2 Internal Nets Through Separate NICs To Internet?

Nov 9, 2009

I have configured CentOS 5.4 as a router/firewall (iptables) as such, and it is working fine:

eth0 - Public IP/Intenet, DHCP
eth1 - internal "net1"
eth2 - internal "net2"

I want to add a fourth NIC, eth3, which will be assigned its own Public IP/Internet address (thru DHCP; my ISP provides two). The purpose it to route all net1's internet-bound traffic through eth0, and all of net2's internet traffic to eth3. This allows me to use one router/firewall machine instead of two separate ones. I anticipate that without some specific routing instructions, the default route will be eth0 for all net1 and net2 internet traffic (eth3 will be ignored).

I thought of using just one NIC (eth0) but create an alias (eth0:0), but IPtables (and possible DHCP) can't differentiate between the two (besides, nics are inexpensive). Is there a way to do this through routing commands, or even use iptables prerouting/forward functions (or is using iptables problematic)?

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Ubuntu :: Tmp Or Temp Assigned Elsewhere?

Oct 1, 2010

is it possible to have the tmp or temp folders assigned elsewhere. I am actually looking to stick them in the shm folder since there is enough memory to throw around the place ..

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Ubuntu :: Can't Get Super Key Assigned To Left Win?

May 4, 2010

I've been working on this for a couple days, but I cannot seem to find a solution either on my own or through trusty Google. For whatever reason, I cannot get the Super key assigned to the Left Win as I have had it in the past. There does not seem to be an option to do that in the Keyboard layout thingy.

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Fedora Networking :: Bridged Networking And NetworkManager - No Network Connection Because Network Isn't Managed

Mar 2, 2011

I have installed qemu/kvm and created a Bridged network connection which works just fine(Windows 7 VM won't work in NAT mode.)

But when I try to use NetworkManager it says that I have no network connection because the network isn't managed, (I set the settings in ifcfg-br0 and ifcfg-eth0 to be managed)

The real problem is that now I can't use my VPN connections (I have many) in NetworkManager.

Is there a way to have both of these pieces of functionality?

I am using FC14

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Debian Configuration :: VM Is Assigned IP By DHCP At Reconnect

Oct 1, 2015

I'm running jessie on virtualbox.

I set staticIP at /etc/network/interfaces.

When I stop/start vm(not restart), dhclient becomes up and ip is assigned by dhcp. Why?
yoshi@vbox:~$ uname -a
Linux vbox 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt11-1 (2015-05-24) x86_64 GNU/Linux
yoshi@vbox:~$ cat /etc/network/interfaces
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

[Code] ....

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Debian Hardware :: Mac / IP Address Assigned By Router

May 29, 2014

I have 2 PCs, each running Oracle VirtualBox with about 30VMs installed and standing on the same table

On shopping router I found TP-Link

150Mbps Wireless N Router
[URL] ....

How can it assign 30 IP address to each PC?

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