Networking :: Odd PPPoE Packet Redirection Networking?
Feb 7, 2010
I have a machine with two network cards running linux mint 8 XFCE (which is compatable with Ubuntu Intrepid Ibex). eth0 gos out onto the network propper, has a static IP address of 10.10.10.10 and serves DHCP requests for the 10.10.10.x subnet.
eth1 is pluged into a PPPoE concentrator, and has a static address of 192.168.0.1 (I would have left it alone but pppoeconf wouldn't work unless it had an address).
ppp0 is the piont to piont over ethernet conection that is corectly created when I run pon. I have both guard dog and guide dog installed but they are both disabled.
Now, the weird part: I can ping the IP number of the machine at the other end of the pppoe conection (when it changes I can still ping the new number), the local IPs (10.10.10.x), but *nothing* else not even the DNS servers passed to the machine during ppp conection which are in the same sub net as the machine I can ping.
When I try to ping or trace the route I get an error message like: reply from 10.10.10.10: desination unreachable There is nothing wrong with the network at the other end, as I can make an Identical PPPoE connection from other machines on the network if the the concentrator is pluged into the hub (a rather unsafe place for it to be) and it all just falls into place.
What seems to be happening is that the machine is treating eth0 rather than ppp0 as the internet gateway, and passing the packets round in circles.
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Jul 12, 2010
I am the new user to ns-2. I would like to know is it possible to send the keys or some value as the packet data (content of the packet) in ns-2 (for wireless environment).
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Apr 9, 2010
I have 3 Dell Precision M4400 machines. After getting updates yesterday or today, I get random network dropouts like crazy, on wired or wireless. On one machine I was able to turn off ipv6 in grub and reboot, and it works now. However on the other 2 machines, still have the same problems. All 3 are running 9.10 64 bit. Is there a way I can back out the updates so the network works again? Anyone else see this behavior after updates today?
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Jan 27, 2010
Ok, here goes, I have a rdp server sitting at a remote store which is behind a router I do not control.
I might be able to get the phone company to add routing to it but at the moment I'd like to do this with ssh and reverse port routing, because I might need this for other ports later and I never know if the phone company wont break other routings already in place or just screw up the entire thing .
I am able to have a linux box at the site ssh into a server located where I'm at and reverse port forward port 3389 to that server. I can also then ssh into that server from my linux box and port forward 3389 to my box, under another port since my 3389 is already in use. Finally I can use rdesktop to rdp on the my local box which bounces it through the server and back to the linux box which forwards it to the rdp server (A Windows 2008 server to be exact). This is all well and good and works reasonably fast, but, I need to be able to have users on windows boxes at my site do this without all of the rigmarole. I need to, I guess, redirect a normal open port, or create one, on the server where I am so that it connects internally to the reverse forwarded port or open the internal port to the outside. So I guess I need to make it a 'gateway' for that one port, this way all I have to do is point the rdp clients at the main server and port to have it eventually connect to the rdp server in the remote store.
how to go about doing it. I guess I need an iptables entry forwarding the port but I'm not sure what is should be.
The other option is opening up the port 3389 to the outside but I'm not sure how to do that either. Right now I have no iptables entries at all but even if I turn off iptables completely port 3389 is not available if I try to use it from another pc on the network but I can rdp from the server itself using the 3389 port so I know it's working internally.
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Jun 17, 2010
There is this server where in I want to use port redirection using iptables. For port redirection I have used nat table with PREROUTING chain and REDIRECT option. Like:
Code:
iptables -t nat -A PREROUTING -p tcp --dport pop3 -j REDIRECT --to-port 8110
It just does not work. I have tried to redirect other ports as well but nothing works.
[code]....
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Mar 29, 2009
I am using squid proxy server in my Linux machine for caching. Now i want run my squid in transparent mode not set proxy settings in browsers.Like squid is running port 3128. If we redirect the port 80 packets to port 3128, looping is occurred.How to avoid looping?
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Oct 18, 2010
I have been trying to achieve something through iptables but something is going wrong. I want connection/packets arriving to a specific computer (let's call it "server") from another specific computer ("client") inside the same network to be automatically redirected to a remote computer in the internet and vice-versa. I tried doing that using iptables with these commands on the "server" PC:
Code:
iptables -t nat -A PREROUTING --source 'client-ip' -j DNAT --to-destination 'remote-pc-ip'
iptables -t nat -A PREROUTING --source 'remote-pc-ip' -j DNAT --to-destination 'client-ip'
[code]....
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Jan 17, 2011
I'm have a base level understand of linux at this point. I have Debian box that I am trying to do some port redirection with.
I have my external NIC as eth0 with an IP of x.x.250.5.
I have my internal NIC as eth1 with an IP of 192.168.1.1.
On the internal network I have a NAS box with a web interface at 192.168.1.100. What I need is to set it up so that a request to x.x.250.5:8080 will some how forward/redirect to the internal network NAS box at 192.168.1.100:80.
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Feb 9, 2011
I'm currently setting up a squid proxy which will be installed on a debian system configured as a bridge eth0/eth1 as br0. The problem I'm having is that port 80 requests are being proxied both ways where I only want the requests coming in via eth1 to be proxied.
Is there a way to do this? I've already tried changing the "-i br0" in the iptables redirection to "-i eth1" but no data appears to go through it.
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Jul 16, 2011
I use win7 bit and input the ISP username and password, it runs well,but after I swap system to Ubuntu 11.04 64bit, I cant use the username and password to run DSL successfully.I use the
PHP Code:
sudo pppoeconf
A text-based menu program will guide you through the next steps, which are:
Confirm that your Ethernet card is detected.
Enter your username (provided by your ISP).
Enter your password (provided by your ISP).
If you already have a PPPoE Connection configured, you will be asked if it may be modified.Popular options: you are asked if you want the 'noauth' and 'defaultroute' options and to remove 'nodetach' - choose "Yes".[code]................
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Jan 10, 2010
I am a newbie to Linux just installed Ubuntu 9.10 using WUBI. I am not able to connect to Internet using PPPoe. I went thru some of the threads and tried PPPoeconf and it works. So how to configure Network Manager so that it works.
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Jun 5, 2011
i configured net and LAN setting for it but i cannot make them work together using pppoe....how do i dailup both together and work properly..!!
in windows xp i use to untick use default gateway to make them work simultaneuosly but there is no option like that in ubuntu..!!
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Apr 18, 2010
I got a new ISP, and it uses PPPoE. Let's say it's over eth1. After I connect there is a ppp0 -or similar interface. My question is what kind of firewall policy should I use on eth1? (block all, allow ppoe passthrough only or should I just do nothing?)
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Apr 24, 2010
I'm using Ubuntu 9.04 ..
My adsl modem is in bridge mode . I can connect to internet via pppoe . pppoeconf recognise the pppoe in eth0 and setup a connection and i can use it .. Now , the Problem :
How can I setup a pppoe connection using pppoeconf so that it uses wireless ? I set the wireless mode to bridge in modem settings . But , after that , the access point stopped appearing in "aps in range" in network manager and i can't connect to it . pppoeconf also doesn't recognise wlan0 as a valid pppoe link . but dat is normal since i don't think it can check if wlan0 is pppoe without wlan0 being connected to the modem's wireless network .
SO , HOW CAN I CONNECT TO INTERNET WITH MODEM IN BRIDGE MODE AND CONNECTING VIA THE WIRELESS INTERFACE OF THE MODEM ??
sidenote : hey , is pppoe over wireless even possible ? coz the datalink layer of wlan is not ethernet rite ?
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Mar 21, 2011
I have an internet connection with dial up created with pppconfig that I use Code: #pon connection_name to connect to internet in my ubuntu 10.10 platform and it creates me a connection over ppp0. I want to use a PPTP vpn, so I used this command
[Code].....
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May 24, 2009
On a Fedora 11 machine, I configured ppp0 on eth0 and ppp1 on eth1, each one is connected to a modem, I also defined ppp0 as the default gateway.. Should I do anything else to load balance the 2 connections or will ppp1 take some of the load by default? Should I add any other routing rules? If yes then please tell me what should I add, keeping in mind that for each pppoe connection both the pppoe address and the remote address are not static so I actually needed some scripting to change the default gateway each time the remote pppoe address changes.
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Jun 16, 2009
I have just installed FC11 from a DVD I created from an ISO.I also have FC10 (using here) and Windoze XP pro all on separate HDDs.I have not been able to configure my internet connection, when I try to create a new xDSL connection I get an error message; package needed 'rp-pppoe'.I don't now how to get the package without a connection.I have tried with and without Network Manager.
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Feb 26, 2010
I'm running Fedora 12. After installing the following updates (from yum log):
Quote:
Feb 24 14:34:25 Updated: xorg-x11-server-common-1.7.5-1.fc12.i686
Feb 24 14:34:45 Updated: 1:qt-4.6.2-1.fc12.i686
Feb 24 14:34:50 Updated: compiz-0.8.2-24.fc12.i686
Feb 24 14:34:51 Updated: 1:qt-sqlite-4.6.2-1.fc12.i686
Feb 24 14:35:13 Updated: 1:qt-x11-4.6.2-1.fc12.i686
[Code]....
P.S.: I have another F12 system, on a second HDD, that I haven't updated since two weeks ago and I can connect to the internet with it. So this seems like a package correlation problem. I think it might affect more users than just me, especially those who only have F12 installed on their computers.
If this affects more than just me, I think the guise at Fedora should offer a script or a rpm to be used offline to, whether downgrade the "ppp" package, or to update the "/usr/lib/pppd/2.4.4/nm-pppd-plugin.so" plugin.
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Feb 21, 2010
I have 2 PC's : a desktop and an notebook(IBM).On my desktop i have Windows 7 and Ubuntu 9.10,and on my notebook(IBM) is Windows XP SP3. Both of the PC's are conected to internet over an PPPoE conection in Windows thorugh my router(EDIMAX).
My desktop has the following :
IP adress : 192.168.2.100
Subnet mask : 255.255.255.0
Default gateway : 192.168.2.1
Preferred DNS server : 192.168.2.1
[Code]...
When i boot to Ubuntu 9.10 i dont have internet...but if i restart the PC and enter in Windows 7 there is internet,and is the same connection,the same adresess. How can i make the connection in Ubuntu 9.10 with the same adress,i mean like is in Windows 7?
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Apr 22, 2010
I just got lost. I have set up a server with two nics. eth0 for the lan and eth1 for the Internet. I have dhcp running on the server. I am using adsl and have run pppoeconf to set up my connection. I have turned off dhcp and nat on the router so the device works as a modem using bridge mode.The problem I have is that the server keeps hanging when loading pppoe or at least when pppoe has completed getting the public DNS addresses.What happens is that the Internet connection can be opened from the /network/interfaces file. This seems to work but it does not return control to the server - the process runs, the DNS addresses obtained but the rest of the processes following at start up never load (i.e. power on the server and the processes that load then).
So I thought that this must be in the wrong place. I commented out the items in the interface file and added a couple of entries to end of rc.local, my logic being that this will load after everything has finished. Nearly right but not. What happens is that all processes run and then the pppoe program runs and the DNS addresses obtained (seen from a screen connected to the server). But the system then stops. What should happen is that it continues to load and at the end return the login prompt.From a client I can see that dhcp has loaded since a private IP has been allocated but I cannot login from that client since the server has not finished loading.I am not sure what I have not done here since reading round I can see that what I have followed is the same as everyone else but I get a different result.
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Apr 29, 2010
I've just done a fresh install of Ubuntu 10.04 lucid lynx and how to setup a pppoe connection in ubuntu. ( thats after 2 hours of googling and trial and error)
system info: its a laptop : Dell Studio XPS 16 connected to a Ethernet hub thats connected to a dsl modem..
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Jun 26, 2010
i am completely new to the world of Linux. But i want to learn it. My problem is , i cannot connect my PC to internet. I have a shared broadband connection which needs username and password to connect to internet. I don't know clearly but its something pppoe connection through wan mini port. or xdsl. I contacted my isp but in Our country (Bangladesh) a very few people use Linux or Ubuntu so they cant help me out. i searched many forums,, googled everywhere but cant make it working. i tried some command like "sudo pppoeconfig" but still dont understand. I know there are many people who know how to do this. My Pc configuration:
Processor: Intel Core2duo E8400 3.00GHz
Motherboard: Intel DG41TY
Ram: Transend 2GB 800 buss
Hdd: Samsung sata 400gb
Lan: Realtek PCie GBe family (built-in)
Ubuntu 9.10
I have Fedora 13 also. It looks almost similar to ubuntu at network connection.. is the settings will be the same.
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Dec 3, 2010
I use pppoe connection over wireless network, for long time I've used console, so I didn't had any problem with it, BUT - after installing gnome, I can't connect to the wireless ISP. On my network manager I see my wireless network, I can connected to it, but when I do it, I don't see DSL connection on my menu, If I only connect cable to it, DSL connection is showing again. What should I do to see the DSL connection when only wireless is connected ?
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Jul 14, 2010
What is the best client application for connecting through PPPoE (DSL connection)? Gnome's default network manager isn't very useful. I created a DSL connection but don't know how to use that.
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Apr 6, 2010
i need help to create a PPPoE Connection ( Breoadband)using RHEL 5 cz my ISP use this type of connection .Plz if there is someone can show me the procedure step by step.
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Nov 15, 2010
I have wireless adapter USB rt1878 working fine.I have to setup pppoe to make internet connection?I need this help?
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May 9, 2011
I'm having a weird problem that I'm hoping someone can help me with.
First some specs:
F13
NetworkManager Applet 0.8.3.998
Driver r8169
Opera 11 and Firefox 3.6.16
Recently my ISP switched to PPPoEand since then my internet connection has been giving me problems. While browsing, some websites load fine, some websites load fine after I refresh once or twice, some load really slowly and the formatting tends to be messed up and some websites won't load at all (they stop at waiting for website...). Ping for all of these sites is however fine. Also uploading and downloading either from sites like rapidshare or using torrents is also fine. The same ISP also provides a second similar connection which is connected through a wireless router (mine is connected directly - no modem or router) to two computers (one via a wired connection and one through wireless) both running Win 7 and everything works fine over there.
Things I've tried. I tried using the router changing it's setting to my connection and connecting through that but the problem remains. After googling I thought it might be an MTU issue so tried this:
[Code]...
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Jan 5, 2011
I would like to set up a PPPoE server based on CentOS 5.5 i386, in order to give public IP addresses to my customers. Does have anyone a tutorial or can you give me some clues ?
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Jan 25, 2011
I am in a hub(with switches and rooters) and i want to spy what packets everyone receives! if can i do this and if i can which tools i can use?
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Feb 18, 2010
i can't get a pppoe conection working over a wireless network,in windows I have to connect to the router first, and then put in my user and password to get connected, but i don't know how to do this on fedora, i get connected to the router through network manager, and ping is ok, but when i try to make a new xDSL connection i don't know how to make it work through the wireless network that is established and working with my router.
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