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
TL-WR741ND
150Mbps Wireless N Router
[URL] ....
How can it assign 30 IP address to each PC?
Consider the following program:
Code:
#include <stdio.h>
#include <stdint.h>
[code]...
I'm stumped here as it seems like after an update etho:0 has assigned itself 2 x IP Addresses. I don't understand how this happened or how to fix it so some help would be great as I cannot access cPanel while it's like this or my sub directories.Here is a print of ifconfig
-bash-3.2# ifconfig
eth0 Link encap:Ethernet HWaddr AA:01:5F:9A:FE:26
inet addr:95.154.254.38 Bcast:95.154.254.38 Mask:255.255.255.255
[code]....
I get assigned an IP from the university's server. Every now and then, a student will plug in his router to the network trying to get wifi in his/her room.
And by doing so will start assigning IPs on the network, while rendering useless the university dhcp server, which has to cope with a higher number of pc's.
How can I specify to dhclient (or the linux system in general) NOT TO obtain IP addresses given by a specific mac address ?
I would like to create several aliases to eth0, but have the addresses assigned by DHCP instead of being set to static IP's. Is this even possible? All the examples I've seen assign a static IP using the command:
ifconfig eth0:0 192.168.1.11 up
How to find the Address which is already in 2632 port?
View 1 Replies View RelatedI 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?
I have an HP Pavilion A6750F with an AMD Phenom 9650 Quad Core. 8 GB memoryThe NIC is a REALTEC Semiconductor RLT8111/81688 PCI Express Gigabit Ethernet Controller.The actual MAC address for the NIC is 00:24:21:55:DE:40I have loaded CentOS 5.3 on this host three of four times in various configurations and patching levels.THE PROBLEM: The system identifies the NIC as having MAC FE:FF:FF:FF:FF:FF.When this happens, the network connectivity obviously stops working.It identifies everything else OK, just maps the wrong MAC.I'm no sure how to troubleshoot this problem. I tried rebooting a couple times and once that fixed it. Usually it does not. I reloaded (gasp) Windows Vista on it and it worked ok.This last time, I reloaded CentOS it hung on the bootup (ASK ??), I reset it, it rebooted and everything looks ok; for now.
The system says it is presently using driver r8169
I have two machines
1. Ubuntu (static IP 192.168.1.1, running dhcp server)
2. Windows 7 (dhcp assigned IP based on mac - >192.168.1.2)
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:192.168.1.1 Bcast:192.168.1.3 Mask:255.255.255.252
inet6 addr: fe80::21b:21ff:fe7b:2d68/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
[code]....
Now I get time exceeded icmp every time I try to ping both from linux OR windows...
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] ....
I need to obtain daily dynamic IP address from my router for remote user. In order to get into the router page, I need to login to it with ID and password.
Can I tell the server to do this every time it started up to login to router and extract the ip address and send out via email?
The router can only access through web interface and below is what I copied from browser.
I'm using an ubuntu machine to route internet to my main PC. I think I finally got it working with DHCP and all, but there's still a slight problem. DNS does not work! My /etc/dhcp3/dhcpd.conf file contains the following lines:
Code:
default-lease-time 600;
max-lease-time 7200;
option subnet-mask 255.255.255.0;
option broadcast-address 192.168.0.255;
[Code].....
I am currently only able to post on this forum because I copied /etc/resolv.conf from my server to my main machine. Now DNS is working. But it should update automatically, right? Currently, this isn't working.
If possible, I'd like it most if I wouldn't have to hardcode the DNS servers in /etc/dhcp3/dhcpd.conf either, but that the server would just relay the DNS adress it has gotten itself!
I have read in a forum that a computer can have the same MAC Address with its router in the sane LAN but how is that possible? Isn't every MAC unique? Also I have not understood, when we send a packet to a PC that is not in our LAN the packet should have the IP Address or the MAC Address of the computer that we want to send?
View 3 Replies View RelatedI noticed that my internet connection wasn't automatically brought up each time I logged into Fedora so I opened the system-config-network tool and edited my network adapter by checking the box marked "automatically start at boot/login." To my surprise, the connection went down and upon trying to click on the device to let the manager bring up the connection the greyed-out phrase "device not managed" appeared underneath the device name and wouldn't allow me to connect.
Even when I used ifconfig/dhclient to get the connection up nothing happened. I could get the router to assign an IP address through DHCP, pinged a few sites to make sure it was legit, but still couldn't use firefox to browse anything. Seems as if network manager GUI is conflicting with command line attempts to bring the network up. I'd like to permanently disable system-config-network if possible because it's acting screwy!
I have just installled fedora, and I am puzzled by dhclient-script. Because it gives the router ip as nameserver 192.168.0.1. I have had other linux distro on same machine that resolves the correct nameserver without any configuring.
Does anyone know how to get your ISP:s nameservers instead in /etc/resolv.conf when running dhclient from CLI? I have thought about edit /sbin/dhclient-script. But if that is the case. Which option should I edit?
Quote:
My system
OS=Fedora 15
Kernel=Linux fedora_15 2.6.38.8-32.fc15.i686.PAE #1 SMP Mon Jun 13 19:55:27 UTC 2011 i686 i686 i386 GNU/Linux
Router =DLINK dir 100 (IP 192.168.0.1)
us robotics router, trying to access 192.168.2.1, worked on windows xp, just switched to lucidi have tried using both firefox and chrome, neither will access my router
View 7 Replies View RelatedI'm running Ubuntu 10.04 and my setup is as follows:
As you can see, I am directly connected to router 192.168.25.1, and so my ip address is 192.168.25.101. I want my ip address to be 192.168.13.101, and make router 192.168.13.1 my gateway router. Is this possible under the current physical layout (I do not want to have to connect directly into 192.168.13.1, but keep my computer where it is at)?
When I run tracepath, it shows 192.168.13.1 is one hop away.
What I've tried:
The problem is under this manual setup, I cannot ping 192.168.13.1 and running command netstat -rn returns the following:
I have an open WEP wireless internet connection with a security key. KNetworkManager can never obtain an IP address from my wireless router, but I know that the router works because Windows can connect correctly and Ubuntu's NetworkManager can connection correctly. Does anyone know what is happening? KNetworkManager just asks for my security again and again and again after it fails to connect.
View 8 Replies View RelatedI've only been using linux for a few days so I don't know all the tricks. I'm pretty savy configuring windows networks however.My adapter is (according to windows) a: CNet PRO200WL PCI fast ethernet adapterLinux says it is a: 21x4x DEC-tulip compatible 10/100 EthernetI do seem to be getting an ip address from the DHCP router, but I cannout ping any other ips or connect to the internet.I've tried a bunch of different options, switching things back and forth, but it still doesn't work, and honestly i don't even know what some of the options mean.
ALSO, if this helps:
paladin:~ # ifconfig eth0
Eth0 Link encap:Ethernet HWaddr 00:08:A1:03:3C:99
[code]....
I have been struggling to get FC15 to act as an IPv6 router for a while now, am sure I am missing something trivial.. The idea is that I have a ppp / adsl connection (this works fine), use the wireless card on my pc with hostapd and dhcpd to provide connections to other pcs (works fine), and radvd to delegate ipv6 addresses.
The issue seem to be that as soon as I turn on ipv6 forwarding (net.ipv6.conf.all.forwarding =1), the ppp connection no longer gets an IPv6 address. This means the router cannot ping any ipv6 address outside my network.
If I disable ipv6 routing, my router gets an IPv6 address on its ppp connection, and can ping things such as ipv6.google.com just fine, however (of course) no packets are forwarded from my network and radvd complains that forwarding is disabled.
I'd like to setup my Debian Lenny as a router. Should I add in /etc/sysctl.conf
Code:
net.ipv4.ip_forward = 1
or
Code:
net.ipv4.conf.default.forwarding=1
my kernel:
Code:
# uname -a
Linux debian 2.6.26-2-686 #1 SMP Sun Jul 27 22:26:44 UTC 2009 i686 GNU/Linux
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 ..
View 1 Replies View RelatedMy son needs me to do maintenance on his computer. He has a router installed for firewall purposes. I can see his router's IP address. How do I get past that address to his local address?
View 14 Replies View RelatedI cannot see my debian linux machine in my virgin media router>>attached devices. I can see everything else including my raspberry pi.
The box is headless but I connected up to tv temporary and did ifconfig and got the ip address. I can ssh to it and connect to minecraft server I have running on it but I would like to know why I cannot see it in the router.
I'm configuring a debian computer to act as a router for my home network. I want to split my home network into two parts and define different firewall rules for these parts. I also want to use dhcp to make sure every time a computer logs in it gets the same ip but is still able to log in somewhere else. The biggest problem now is that I have to make some functions able to someone that has never worked with linux before.
I've worked with software routers like pfsense before and I would like a similar web frontend to this. Does anyone know if there is such a piece of software? I'm not using pfsense itself because I don't want to virtualize it and I need some things like the software raid5 and some htpc software I don't want to try to get working on pfsense. I've previously used webmin untill it was hacked because of an exploit in it so I preferably don't want to use that one. I've been working with the dd-wrt software and something like this would do the trick perfectly!
Because of the configuration of my house, I need two routers.I have a DLink ADSL router as my main router and the Belkin N1 as my repeater.I have set up the IP address in the Belkin to be 10.1.1.10 - my DLink is 10.1.1.1. I have disable the dhcp in the Belkin and set the DNS as ISP provided. [URL]..I have set the channel to 11 and in the Ubuntu Network Manger I have set the IPV4 to Link Local Only. I can see the Belkin and connect with my PC.but it will not take me through to the internet.
View 9 Replies View RelatedI want to set up a Linux box as a wireless router to replace our existing Netgear WNR1000 router, as I believe the Netgear does not support the coming IPv6 protocol. Unfortunately, it is not flashable with OpenWRT or DD-WRT presently.
As we have Comcast, our cable modem acts as a dumb modem according to the customer support guy I talked to, and our router is the one that asks for the IP address from DHCP. Thus, when Comcast switches over to IPv6, I don't believe my existing router would work, correct?
My idea is to take a Linux box and put two NICs and a wireless adapter in it, using IPCop or Smoothwall to set up a router. I could then enable IPv6 support for when we have IPv6 with Comcast. Is that possible? Would there be a way to get BIND to hand out private IP addresses in the same subnet on the both the LAN NIC and the wireless card?
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.
View 4 Replies View RelatedI 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 192.168.219 255.255.255.255 or something like that.
View 10 Replies View RelatedI have a desktop PC running Ubuntu 9.10 and Windows 7, and a Eee PC 701 laptop running EasyPeasy Ubuntu 9.04. I'd like to connect the desktop to the laptop with a wired connection (eth0), then the laptop to my ADSL router using wireless (ath0).
I have a crossover ethernet cable (I bought on ebay). I have set up my laptop with a static IP address on my LAN and it uses OpenDNS.
I have added this to /etc/sysctl.conf on the laptop:
net.ipv4.ip_forward=1
Then I tried this on the laptop:
sudo iptables --table nat --append POSTROUTING --out-interface ath0 -j MASQUERADE
sudo iptables --append FORWARD --in-interface eth0 -j ACCEPT
This is a variation on what I found on other sites describing how to set up a router. I don't understand iptables very well, but I gather that the above two lines should set up forwarding so that traffic from my router to the laptop will be forwarded to the desktop, and vice versa.
But this doesn't work. The connection doesn't even establish between the laptop and the desktop.