Networking :: Setup A Router With Extended Range ?
Sep 12, 2010
I want to connect to my office intranet without utilizing internet, there is aprox 210 ft distance and i cannot locate my N router's signal even when i installed the router outside of the building, the server is redhat enterprise, and want to share filehosting and internet with the office to cut down costs.
Office building with intranet>--------<210ft>----------my apartment
I am willing to invest some money in this setup but undecided how to extend the network, someone told me i can use a router in repeater mode but i cannot find any such router, my employer has allowed me to use the office network (so nice of him) but at my own setup.
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Apr 24, 2010
I'm having trouble getting my network set up the way that I want it/had it. You see, when I first set up my network, I just had my cable modem going directly to my standard wired router (A D-Link DI-604), which had DHCP,and was connected to all of the computers on my network. I had one switch hooked up to one of the ports of the router, but this was a regular switch, and it would not try to assign IP addresses, it would just pass through the DHCP info as I wanted.
Now however, my network setup has changed. My room mate and I both got laptops, and we decided that we wanted to have wireless access so we didn't have to constantly plug in to the router.
Now my network is set up like this: The modem is hooked up to the router(DI-604), which is hooked up on the LAN side to our computers, our switch (which is hooked up to 3 more computers), and to a wireless router card (A Gigabyte GN-BC01).
The wireless router card has two jacks for ethernet. One for WAN, and one for LAN. The LAN side we have plugged only into the computer in which the card is installed.
Now the problem is this: The wireless router card comes with DHCP by default, and it's assigning addresses to the laptops and to the computer hat it's in, and worse, the IP addresses are on a different subnet than that of the main dlink router. The Main (dlink) router assigns addresses from 192.168.0.1 (itself) to 192.168.0.254, while the wireless router card assigns addresses from 192.168.1.1 to 192.168.1.254 (itself).
Because of this, I cannot access services on the wireless network from my wired network or vice versa. The first thing I tried was setting the card to assign addresses from 192.168.0.12 to 192.168.0.253, however it just said "internal error" when I tried to do this. I decided that this may be because it sees that it was being assigned an address on it's WAN side on the same subnet. So the next thing I tried was disabling DHCP and setting the "LAN IP Address" to 192.168.0.12, hoping that the DHCP would just go through the card, like a switch. I would have set the LAN IP address to be assigned by DHCP, but this was not an option, so I decided that'd be the best thing to set it to.
Once again however, setting the LAN ip address to an address on the same subnet as that of the IP assigned to it's WAN side caused it to report an "internal error". I verified that this was the issue by setting the LAN address to several other private IP addresses to test (I.E. 10.0.0.1, 192.168.3.1, 192.168.5.12).
My question then really is: How do I set up both routers so that I can access services and computers from each network from the other network. Should I set them with different subnets and set the gateway on the wireless network to the main router? To the wireless router card? Should I put them on the same subnet? Will it know how to communicate?
Here is a link to (picture) my network diagram. Network Diagram
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Sep 8, 2010
I would like to setup a Linux Router with Fedora. Here is what I have and would like to do...
Email filter device is on the LAN at 192.168.x.3. I need to provide SNAT to that device from both T1 interfaces...
All outgoing traffic will route through DSL except for traffic destined for addresses on either eth0 or eth1 (web sites).
I assume I would need the following:
I also assume I would need to setup iptables with FORWARDs for the 192.x.x.x networks to eth3.
What I am not sure how to do, is properly setup the incoming redirections so that the email filter can be access from both eth0 and eth1 by different IP addresses.
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Apr 5, 2010
how to setup ubuntu as router. i already try to setup but it doesn't work.
my situation is to create ubuntu as router. i have two network card etho and eth1. i want to create eth0 in DMZ and eth1 only can only access in internal.
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Apr 3, 2011
I have multiple devices in my garage that need internet connectivity. I have my main Netgear router inside the house. I have a computer running Ubuntu in the garage with dual NICs.
Here's a map of how I have it setup now: [URL]
Here's my /etc/network/interfaces:
Code:
auto lo
iface lo inet loopback
auto eth0
iface eth0 inet static
address 192.168.1.60
netmask 255.255.255.0
gateway 192.168.1.1
auto eth1
iface eth1 inet static
address 192.168.1.5
network 192.168.1.0
netmask 255.255.255.0
broadcast 192.168.1.255
I was trying to keep everything on the same subnet. Eth0 is the external NIC, connected to the router in the house. eth1 is the internet NIC, which would go out to the devices in the garage. Now, I know it would be easiest to just connect a switch up and run all the devices in the garage off that switch. But the switch I have is a 10/100, and my network in the house is gigabit, and I want the PC in the garage to have gigabit access... which is why I'm doing this dual NIC setup and using the PC as a router, then the other devices in the garage will be 10/100.
In addition, I used the shell script as described in this article: [URL] to setup iptables. I also uncommented the net.ipv4.ip_forward=1 line in /etc/sysctl.conf. What am I doing wrong here? None of the devices in the garage that I connect up to the Ubuntu PC are getting connectivity. None are getting a DHCP lease from the main router in the house. The Ubuntu PC itself has internet access just fine though.
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Jun 23, 2009
get me understand the short range and the long range links from routing (and routing protocols') point of view.
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Feb 9, 2010
I want to setup a router with firewall on ubuntu box that will connect windows pcs one serving as outside source and one serving as inside target.
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Nov 17, 2010
I am planning to setup a home network with Ubuntu.the home network consists of ~3/4 computers; a mediaserver (reelbox) and 2 more PCs.Can I setup the server as a DSL router and get rid of my modem/router I have right now?
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Dec 1, 2010
I am trying to set up SSH so that I can edit files on a home server (linux). I know this question has been asked many times before, but none of the answers seem to apply to me.
Here's my setup. I have the modem connected to a switch (wired) that connects 2 PCs to the internet (one desktop, one server, both wired).
All of the threads I see that discuss static IPs seem to require that I set up a router. Is this necessary? Can I still transfer files through a switch?
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May 12, 2010
I've got an Ubuntu box set up as a router and wifi hotspot. I can access the internet and any website using this box. I can connect a laptop to my wifi access point, and connect to both the router box and the internet. I'm writing this message from it. If I access either hsbc Hong Kong internet banking or speedtest.net from my laptop I can't connect. Every other site I've tried is fine. What could be causing this? I don't know where to start. I've set up the firewall rules and routing tables, so I vaguely know what I'm doing... but clearly not enough to debug this issue.
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Jun 18, 2010
\How can i setup my computer (currently running Ubuntu 10.04 lts) into a router so that other laptop can have a wireless connection to it and be able to access the Internet?
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May 29, 2011
I have been searching google for a while now and have not found exactly what I am looking for. I would like to use my fresh install of ubuntu server 11.04 as my router/gateway for my home. I am not an expert at linux by any means but I can usually figure stuff out. I believe I need iptables, bind, and a few others probally. It eventually will also be a samba server but I have done a little with samba before. I do have 2 network cards, my router at the moment is starting to die and would love to have a more powerful router. I would also like to figure out how to do port forwarding in the router, as well as be able to see the load on the network cards. Maybe there is a program to show usage by user? As well as be able to do packet pritorization.
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May 18, 2011
how to set this baby up with a working Internet connection so I can get on my PS3 across the other room.
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Apr 2, 2010
I have searched google, but can't really get the hang of setting this up.Most howtos are setting up a DHCP and PXE on the same box. At the present my DHCP is done by my router and I want to set up the PXE server on my main PC.My router can re-direct traffic types based on ports (UDP or TCP) to an IP but can't do the bit about directing the pxe loader name (and I really don't want to ssh into it and start messing about there)If I redirect the port (what ever it may be, help required here) how would I go about setting up the Ubuntu PC to do the load and pass back to the PC trying to PXEboot?
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Jun 10, 2010
I got two issues with my wifi usb adapter:
1) it cannot see any networks around
2) i cannot setup it in master mode to use my PC as a router
As far as i can see, the device is recognized and the correct driver (rt73usb) is loaded. I was able to connect to a laptop somehow (the laptop could see other networks and the adapter's PC-to-PC network). I'd like to make it work as a router, i.e. share my internet connection (eth0) via wlan0. Here is what i have:
Code:
Ubuntu 10.04
Linux 2.6.32-22-generic #36-Ubuntu SMP Thu Jun 3 19:31:57 UTC 2010 x86_64 GNU/Linux
TP-Link TL-WN321G wifi usb adapter as seen as
Bus 001 Device 006: ID 148f:2573 Ralink Technology, Corp. RT2501USB Wireless Adapter
$ iwconfig wlan0
wlan0 IEEE 802.11bg ESSID:off/any
[Code]....
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Apr 13, 2010
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.
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Jun 18, 2011
I 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?
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Nov 6, 2009
I 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.
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Apr 24, 2011
I want to plot a set of data in only one plot.The problem is that some points of the data should be better plotted in a linear scale (lets say 0 to 100,000) but there are other data points that, exceding the value 100,000, would be better plotted in a logarithmic scale, as they goes in the range 100,000 to 500,000,000. Let's say the data is:
Code:
X Y
0 100
10000 80
20000 75
[code]....
Is there a way to plot all these points in the same plot in only one X-axis showing two different ranges in that axis: linear: 0-100,000 logarithmic: 100,000 - 1,000,000,000?The axis would be read, for example, as:
Code:
|-----|-----|-----|-----|-----|-----|-----|-----|-----|
0 20k 40k 60k 80k 100k 1M 10M 100M 1G
(The abbreviations k-M-G are not the important point. Just shown for clarity)
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Mar 26, 2009
These r IP provided by my ISP that i've put on Fedora 8:
WAN IP:xxx.xxx.xxx.17 (eth0)
Subnet:255.255.255.252
Gateway:xxx.xxx.xxx.18
Valid static(public) IP set of 2:
IP:xxx.xxx.xxx.147 & 148 (eth1, eth2)
Subnet:255.255.255.240
i want to run xxx.xxx.xxx.147 as a web server & xxx.xxx.xxx.148 as a ftp server. but I'm able to ping only xxx.xxx.xxx.17(WAN IP) from outside world. Can any1 tell me that how can i bring my 147 & 148 IP online without router.
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Apr 11, 2011
I want to build a bash script, which can ping a range IP adresses which will be filled in by the admin. If there is no IP-adress filled in, then the script must ping the subnet where the system is logged on. So if my ip is 192.168.1.6, then the script must ping from 192.168.1.1 till 192.168.1.255 Or else, if there is given a beginning and ending ip it must ping that!
The first part of the bash script is to ping a given range (see below). But there is one problem, how can I tell the script to ping from $begin till $end, [..] is of course wrong! But what must be filled in there???
echo "Enter beginning IP-adres:"
read begin
echo "Enter ending IP-adres:"
read end
ping -c 1 $begin [..] $end
The second part is to find my own ip and ping the whole range.. How to do that? I only can find my own IP, but I cant ping the whole range,, how to do that?
#!/bin/bash
ifconfig | grep 'inet addr:' | grep -v '127.0.0.1' |
cut -d: -f2 | awk '{ print $1 }'
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Apr 10, 2011
Is it possible to set up a (Open)VPN server without havning the server behind a router (NAT)?
My ISP allows me to have multiple IP addresses (assigned by DHCP).
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Feb 17, 2010
I am trying to get more control of my small office network. It consists of several windows workstations, a debian box, and a ZyXEL P-660HW-D1 router, Right now, the only way to reach the debian box from other computers is to type in its ip address.
The goal is to be able to reach the box by just typing ://debianBox into my browser, though ideally I want to set it up to be something like ://debianBox.officenet, and to also reach other people's computers by typing ://mattBox.officenet and ://fredBox.officenet
The Zyxel router has a LAN page with a DHCP Setup tab with fields setup like so In the past I was able to mange this using an Orange router, but now I have to use the ZyXel.
So I installed dnsmasq on the debianBox, but I do not know how to configure it to get the results. I want and still get internet fromthe Zyxel router.
In the etc/hosts file of the debian box I added 192.168.69.15 debianBox, and for testing on my windows machine I set the primary dns entry of the Ip4 connection to 192.168.69.15 as well, but typing ://debianBox in my browser still gives me not found.
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May 13, 2010
I've just finished installed a mail server with Fedora 12 + postfix + courier. I also have Squirrelmail and ISPConfig3 installed. The mail server is behind a router. I have [URL] pointed to the static IP at my router. My ISP has opened port 25 & 110 for me and my router has these 2 ports forwarded to my mail server (192.168.0.100).Workstations in local network can connect to my mail server and send emails with no problem but cannot receive emails from outside. I tried an email dossier and it saids connection timed out on smtp session. Do I need to include my static IP somewhere in the configuration so that it communicates to the world properly?
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Feb 8, 2010
set up a redhat nat router for a classroom we have out main network is 192.168.110.0/24 and we ran out of ip address for all the school computers so i added a nat router to a large classroom with a network address of 192.168.116.0/24 almost everything is working fine except a connection to the ads server with a program called medisoft im guessing my nat is blocking it how can i open up all ports to and from my 192.168.116.0/24 network as it doesnt need any protection
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Mar 9, 2011
I am trying to setup a firewall using Centos 5.5. The machine has 2 NICs, one connecting to the ISP/Modem and the other connected to a DIR-655 wireless router. The nic is connecting to the internet port on the router.
I do not want DHCP on the Firewall machine but on the wireless router.
[ISP/Modem]<--->[machine eth0]<--->[machine eht1]<--->[DIR-655 internet port]
IP from ISP Dynamic 192.168.1.1 192.168.1.2
IP's on the DIR-655 LAN will be 124.168.0.0/24 network lets say.
I have setup routes on the eth0 192.168.0.0/24 and 124.168.0.0/24
and added 124.168.0.0/24 to eth1.
I can ping eth0 and eth1 but cannot ping 192.168.1.2.
this setup is not actually connected to the internet so I disabled iptables to try testing the ping and still no good.
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Apr 19, 2011
I have just installed fedora 14 and would like to setup my linksys wag54g router in order for me to connect to the internet. I'm the newest newbie ti linux been spoiled rotten by the ease of installing stuff on win7. I need a step by step how to please as I am completely new to the command line as well. I have uploade the quick install guide for the router, but at this stage I dont know wether I should go ahead with what the install guide says or not as I dont know what works for linux.
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Jun 29, 2010
I changed the passphrase in my Netgear WNR3500 router. I got the teenager's win7 netbook back online (wireless) no prob by simply changing the security key in windoze and it didn't effect my connectivity but when I attempt to enter my router setup by entering my local IP nothing happens, no response at all. I've rebooted twice and my connection is still very solid but I cannot access the router setup. The ONLY change I made was in the router's "passphrase".Not a big emergency at this point I suppose but I need to know what I need to change in Linux? Or to rephrase, in windoze7 passphrase=security key. In Linux?I can just reset the silly thing I guess but was kind of hoping I wouldn't have to and besides I anticipate the same trouble when setting the passphrase afterward.
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May 19, 2010
I'm using a Debian box as a gateway. I'm planning on bridging my DLink 604T modem/router so that traffic on the LAN goes to my gateway (which only has one NIC). The Debian box is running a PPPoe application which I'm hoping to log into the ISP through the DLink. I plan to configure the box as a squid transparent proxy. Most Howtos I've seen use NAT with 2 NICs, eth0 for the LAN and eth1 for the Internet. Any step-through to set up NAT for this?
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Apr 30, 2010
I would like to setup a qmail server for learning purposes (if you strongly feel Postfix is better, feel free to let me know). When I started setting up qmail (using Life with qmail), it suggested that having a DNS is the best approach. In the spirit of learning, I decided then to create another server for DNS only, and use that for qmail.
My problem is that, as this is a home installation, the internet is behind a Netgear DG834Gv5 router, on a DSL line that has a dynamic IP address. I am using DynDNS, but also don't mind having to update any DNS entries to keep up with the change, this is not exactly a production-grade setup.
In addition, I also have access to another DNS server where I can create authoritive entries for any domain I register. I have done that for a domain, and would like to point part of that to my home DNS so that I can learn.
So essentially, I would like to have a new zone for home.mydomain.org on my home DNS so that I can create new entries for *.home.mydomain.org such as qmail.home.mydomain.org etc. there.
I assume that this would include port forwarding on the router which is not a problem, but I truly have no clue where to start. I have a very basic install of Cent-OS 5.3 (no X and just Base a few admin and dev tools) and just installed the latest RPM of bind (9.3.x).
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