Networking :: Bridge A Ppp Dongle With A Wired LAN?
Feb 5, 2011
I have a LAN (2 PC !) wire connected and I use a Huawei e182e to join the internet (If you have problem to install the Huawei on Linux, don't install drivers proposed on forums or don't try to unlock it. It's not necessary, simply install a kernel > 2.6.34 and it will install itself as a perfect plug and play). On the unconnected machine, the Internet is accessible normally from the broadband dongle, but the connection stops when I plug the LAN cable. It's normal since the PC cannot use both network connections simultaneously without a previous configuration, and the question is precisely there !
Bridging could be a solution but mobile broadband uses ppp protocol that is not on the same layer as wired LAN. brctl refuses to add the key into the bridge configuration. Vtun seems a better approach since it works more independently from the protocols, but it must be installed on both sides and the broadband dongles does not accept software installation in it. Documentation from Huawei is quite inexistent. Actually the story could be the same for a computer connected to a wired LAN and using a wireless dongle, but here bridging is feasible (not tested by me) because they work on the same layer. I tried to deactivate LAN switching in the BIOS: no result static address with gateway pointing on the other device (I tried everything) no result. How to bridge a ppp dongle with a wired LAN?
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Jan 30, 2011
[PC]--(wire)--[Router1]--(wire)--[Laptop]==(wireless)==[Router2]::[Internet]
My setup is above, I hope it comes out OK on this forum, and someone can understand what its supposed to be! My problem is I am not sure how to get [PC] to be able to see [Internet]. From [Laptop] I can get both networks to work, and have tried using brctl to bridge them, but as soon as I do "ifconfig br0 up" neither network... works anymore (cant ping either router).
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May 29, 2009
My current network setup at home is all wired, and that's worked for me so far. Now I want to set up a wireless connection on my Linux box that I can connect to with both my laptop and my Nintendo DS. I'd like to be able to host a wireless network from the Linux box, connect to it with some other wireless device, and have the wireless device communicate with the router, the internet, and other computers on the wired network. I have the wired network set up (statically configured) as eth0. Other network adapters present on the system are eth1 (not in use) and wlan0, wlan1, and wlan2 (identical cards, remnants from the last time I experimented with wireless).
So I guess my question comes in two parts:
1) How do I set up wlan0 such that it can host? Is Ad-hoc mode okay for this, or do I need to set it up in Master mode?
2) How do I forward connections between the wireless net and the router?
Note that I will be using WEP, as it is all that the NDS supports. I'd like to set up MAC filtering as well, but not until after I get something that works.
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May 3, 2010
I am running ubuntu 9.10 on a dell xps m1530 laptop dual booting with windows 7. I am trying to achieve the following setup.
Wireless router <=========> Laptop <-----> Switch <-----> PS3
---- wired
==== wireless
Both laptop and ps3 have static ip addresses
The reason for this is I can connect to the internet on my ps3 through my laptop, and I can stream from my laptop to ps3 through wired connection. This works fine in windows 7 all I had to do was right click bridge connections. As I dual boot I don't want to have to make any changes to the settings on the ps3.
My interfaces are:
eth0 - wired
wlan0 - wireless
I installed bridge-utils and created a bridge and added both eth0 and wlan0 to it. However I could not get it to work. I have also tried internet sharing through network manager and firestarter.
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Jun 15, 2010
I recently installed Xubuntu on my old P3 laptop (Compaq Armada E500 if anyone is familiar). The laptop is a bit old, so both wired and wireless networking is done via PCMCIA cards. I have 2 cards installed, one for each purpose. I can't find the dongle for the wired card right now, so I am trying to use the wireless card. I am able to find the network I want to connect to, and type in the password since the network is secured. It tries to connect but then pops up again asking for the password (I know it is correct). Is this card supported by linux/compatible? I tried finding drivers online but the sites that had drivers were down.
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May 17, 2011
I'm trying to bridge connections between a wired and a wireless connection in one of my computers. I was told it was impossible due to low-level limitations in the wireless subsystem, but apparently theres a way if you somehow forward packets from one port to the other. Is there a way I can achieve this?
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May 2, 2015
I'm using a wired ethernet dongle due to my machine not having an ethernet port, however it sometimes drop connection, how can I diagnose whether if the dongle is faulty or my system is having trouble maintaining a connection.
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Dec 8, 2008
I want to set up a bridge using bridge-utils within /etc/network/interfaces like is shown here in this guide: [URL] The problem is that, at the same time, I want eth0 to have a specific static IP address. Right now I have a configuration for eth0. This guide tells me that I should not configure eth0 outside of the br0 configuration.
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Oct 27, 2010
I want my netbook to connect automatically to both the office wired/static network and to the usual wired/DHCP networks.
wicd is wicked but netsearching hasn't revealed how to configure it for both wired/static and wired/DHCP except by manually switching profiles.
wicd's profiles can use pre/post(dis)connect scripts but I don't know how to integrate them into wicd when they are upping/downing connections on cable (un)plugging.
If it is not practical to solve this within wicd, I'll explore standalone scripts to configure eth0 on cable (un)plugging, as detected by ifplugd.
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Mar 30, 2011
i have two ISP, and i want to bridge each IP. Here my example;
ISP one : 10.10.10.1/29
ISP two : 172.16.100.1/28
can we setup for two ISP with different gateway ??
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Oct 19, 2010
I am just staring in the world of Linux (I want to stop eating what Microsoft leaves behind). I have this minor problem using Ubuntu 10.10 (Maverick Meerkat). The OS had detected my CNET Wireless-G USB Dongle (CWD-854). I have a Linksys Wireless Router (WRT-120N). I see in the top right corner of the OS the wireless icon. When I click on it, it displays the SSID of my wireless. When I click on it, it ask me for my wireless password. It start to try to connect to my wireless router, but it always end up disconnecting.
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Aug 9, 2009
I have 2 NIC's in a box. One of them is external and doesn't matter for this question I don't think.
The other NIC is 192.168.100.3. It hosts an iSCSI Target and SMB Share on my LAN. It's works great.
I have another PC that has NIC at 192.168.100.101 and it hosts my DHCP (Scope: 192.168.100.5-25) server for my LAN.
I have a hardware firewall at 192.168.100.1 and it serves inet to the LAN on a different external connection.
So...
I currently have a WAP (cheap p.o.s. netgear router in WAP mode that keeps overheating). I want to eliminate the WAP device and add a WiFi NIC to the Top PC above.
So, on the first system I would have:
NIC 1: External IP and External Gateway
NIC 2: Static IP 192.168.100.3
Proposed WiFi NIC 3: Static 192.168.100.4
Question:
If I bridge NIC 2 and NIC 3 like this:
# brctl addbr br0
# brctl addif br0 eth0
# brctl addif br0 eth1
Then I simply put the WiFi in Ad Hoc, will another WiFi in Ad Hoc (for example my laptop) be able to "see" 192.168.100.101 (DHCP) & 192.168.100.1 (Gateway) (via WiFI 192.168.100.4 through the bridge to 192.168.100.3 and on to the LAN)?
Also, can the two NIC's be bridge together even though they are the SAME subnet?
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Oct 4, 2009
I tried google but without success. I have a small home network and one computer has to work as a bridge (comp1), it connects to the internet through wlan and is connected with cable to other computer (comp2), I would like to to make that second computer member of a local network with internet access.I was trying this:
Code:
ifconfig wlan0 0.0.0.0
ifconfig eth0 0.0.0.0
brctl addbr br0
brctl addif br0 wlan0
brctl addif br0 eth0
[Code]...
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Jul 19, 2010
I have a Gateway laptop running ubuntu 10.04, and just now have a compaq desktop running windows 7, my laptop has wireless internet connection, it's the only way that i can get it in my room. my desktop has only ethernet plugin. My question is, If i plug my laptop up to my desktop using an ethernet cable, can i bridge that connection to get internet from my laptop(using the wireless) to my desktop(using the cable)
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Dec 13, 2010
My first, followed a couple of Ubuntu how tos and used LinuxFoundation bridge doc. I still have managed to mess it up! Here's the simple test network, First -- ALL hardware is fine, I have verified everything, to the last cable. In fact this is being written from the test network without the bridge running.
OK, I have a firewall that has dhcp server on board, I have a client workstation with dhcp enabled network card(eth1) (the one I current typing from). There are 2 switches between the firewall and the workstation (eliminate xover issues when testing) That's it. All is well. Now I want to place a computer in line between the firewall and the workstation. It is a 10.04 server install, no gui, minimal install. It has 3 network cards, One of these ports was used to set up the server. It is set up dhcp and it works just fine, I spent all kinds of time ssh'ing into the box, so the dhcp client is good to go.
I disconnected the cable to that interface and ran a cable from the firewall's switch to one free port(eth0) and a cable from the workstation switch to the other free port(eth2). From the console I do ifconfig -a and there are all 3 eth's, 0,1, and 2 I then open /etc/network/interfaces and to lo and eth1 I add this:
[Code]...
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Jul 30, 2011
I am trying to connect networks connected via locked down wireless routers. Here is the setup:
Internet <-> eth0 - server - eth1 providing DHCP <-> hub <-> wired clients & to WiFi router with NAT & DHCP <-> WiFi clients.
I want the wired clients and the WiFi clients to be able to talk to each other directly, but the locked down WiFi router (meraki) is in the way. the wired clients get their IP address from the server, the wireless clients get theirs from the meraki WiFi router. I can't reconfigure the WiFi router to bridged mode without paying meraki a sizeable annual license fee. What options are out there to get through the WiFi router? I came across OpenVPN and ethernet bridging, but broke networking on the server when trying to configure the br0 interface. I followed these instructions: [URL]
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Nov 3, 2010
I am using 3 machines in a LAN connected through a hub. My intention is to have a end-to-end connection between 2 machines so that I can control delay/loss rate. For that purpose, I am using a 3rd machine with 2 NIC and intend to use a bridge and installing Dummynet in this machine to control the traffic between the other 2 machines.I have successfully installed Dummynet in the bridge machine. Now I require to configure Ethernet bridge in the machine. What is the process? Do I need a kernel compilation or can be done without it? read somewhere that recent kernels can be configured without recompilation.I am using Mandriva 2010 with 2.6.31.5-desktop-1mnb kernel.
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Jun 30, 2010
I have a hub with some VoIP phones attached as well as a machine that is used to record the calls. This all works fine as all packets coming to/from the voip phones are also seen by the recorder so it can process them as necessary.
What i want to do is put another machine between the hub and recorder and have it act as a transparent firewall. So far i've managed to successfully set up a bridge on ports eth1 and eth2 and all the packets destined for the recorder go through the bridge fine. The problem is that the bridge is acting as a switch so the packets from the phones are received on eth2 but don't get retransmitted on eth1. Is there any way to configure the bridge so that all packets received on eth2 are transmitted on eth1, i.e. have it act as a hub instead?
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Feb 27, 2010
I have a Windows 7 machine which is having issues with a Linksys Rangeplus wireless card, specifically kernel dumps every couple of hours. I have an old (really old) tower sitting in my room which I would like to turn into a wireless bridge so that I could connect the windows box to the internet without dealing with the blue screens. I plan on using Knoppix as I have it available already, but if it would be easier with another distro I can always download it. If this doesn't work I'm going to have to buy an old WRT54G offline and convert that with DD-WRT...
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Apr 27, 2010
I want to implement the following scenario :-[workstation1] <--ETHERNET-->[device 1]<--SERIAL-->[device 2]<--ETHERNET-->[workstation2]In short, a LAN over Serial link (RS-232 for instance).If there is a utility that offers such functionality, kindly give me the name, i've googled a bit, and found ser2net, but that only works with TELNETing.. i want it work like a normal LAN like file-sharing n all but over Serial.If there is no such software, then obv i have to program myself. regarding which i have more questions
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Nov 3, 2010
I have added a bridge "mybridge" using brctl bu not added any interfaces yet. Even the brctl show command looks: bridge name bridge id STP enabled interfaces mybridge 8000.0000000 no
Now I try to do: brctl delbr mybridge and it gives: bridge mybridge is still up: can't delete it
I performed ifconfig mybridge down but still the problem persists!
How to delete the bridge?
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Aug 11, 2010
I've been reading for days now, but can't find an example to the following. I have an ubuntu server, with two KVM virtual machines running ubuntu jeos. I want each VM to have it's own static IP, plus one IP for the server. How on earth I do that? do I need to create two bridges, one for each machine? and if so, how do I assign static IP to each?
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Oct 8, 2010
it's one of the first time I'm using linux! For a report I have to answer to the question (the title) but it's very strange! A packet has an ip address? or does it referer to the IP address of the destination? And in particular this is the output of tcpdump -en ip proto 1 (while I'm sending ping -sv remote_machine)which are:
What are IP and Mac andress of a packet that went from my machine to the bridge? and what are the IP and mac of a packet that went from the router to my partner's machine? And how could i find the average delay that a packet experience in the bridge?
[Code]...
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Mar 3, 2010
I want to buy a wireless dongle to establish a bridged connection in my home. I mean, does anyone have a wireless dongle which works perfectly for Karmic without ndiswrapper? Some of the information in the Ubuntu help page is outdated.
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Jul 9, 2010
used to use my 3 skypephone s2 as a mobile dongle with windows 7 - trying to use it with ubuntu netbook and its not seeing the phone, instead shows as amoi technology with a code of 0x1000, is there any way round this as the phone registers its connected and will show up as a mass storage device if i select it from the phone but wont connect otherwise.
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Sep 15, 2010
Cant install my wireless network with kubuntu...tried with cd bt cant work
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Sep 30, 2010
I bought a mobile broadband dongle from 3 network. Naturally it's only compatible with Windows and Mac OS. How do I get it to work with Ubuntu?
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Nov 10, 2010
At the moment I am in the UK using broadband but in a week I will be flying back to India, where I normally connect with a 2G dongle. This comes with its own software that installs when plugged in for the first time and uses an Airtel sim card. Of course this is in Windows so what's going to happen when I go back and try and connect using Ubuntu? I have done a cursory search and note that I should use the Network Connections service, but this relates to 3G, not 2G. Will that make a difference? Is it a suitable replacement for the normal software my dongle installs? I should add that using a Bluetooth phone with the sim card is not practical, I do need to use the dongle.
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Nov 11, 2010
a few weeks back I got an Indian Reliance 3g dongle. I installed usb-modeswitch, plugged in and it seemed to work brilliantly in Ubuntu 10.04.The problem was it was dropping the connection every ten minutes. The logs had the error message "Terminating on signal 15".I had to unplug the dongle and then it would connect again.x the problem, I tried installing first Sakis3G and then Betawine, both of which were reported by some users to haved. Sakis said "the device did not report GSM capabilities"d no good.Installing Betawine was apparently a bad idea, as after that the dongle ceased to work with Network Manager and Betawine itself was useless. Uninstalling Betawine and re-installing usb-modeswitch did no good.Now, when I plug in the dongle, the logs say:Quote:
Nov 9 17:52:31 lauri-laptop kernel: [28563.368241] usb 5-2: new full speed USB device using uhci_hcd and address 3
Nov 9 17:52:31 lauri-laptop kernel: [28563.530547] usb 5-2: configuration #1 chosen from 1
[code]...
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Nov 19, 2010
I am using Ubuntu 10.10 desktop (latest updates) on an Acer Veriton 1000 desktop. I purchased a SMCWUSBS-N# Wireless USB Dongle recently and have been struggling to get it to work. NM-APPLET simply does not show any Wireless option at all. I have tried all the various posts / suggestions that I could Google and I am still nowhere.
Last night I manually loaded the RT3370sta driver. Now iwconfig does show the card on ra0. However, NM-APPLET still does not show any Wireless option at all.
Surprisingly "iwlist ra0 scan" command at the Terminal does show alll the available Wifi connections.
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