Ubuntu Networking :: Cannot Browse Net When Ppp0 And Eth0 Are Up?

Apr 12, 2011

I'm a n00b with these things so be nice please XD I have recently touched on this in previous posts but never came to actually trying to fix it. I have a D-Link DSL-2640R router, with dhcp disabled. It is connected to my computer via ethernet. I have the network manager configuration set to manual with an address of 192.168.1.2, Mask 255.255.255.0 and the gateway column is blank. I would like to know why my eth0 interface seems to stop me browsing.

I use a T-Mobile HUAWEI usb mobile broadband stick, Model E1750 for internet access. If anyone has any ideas as to why this is happening please discuss them. I have also tried editing the /etc/sysctl.conf file and uncommented the net.ipv4.ip_forward=1 line to enable ipv4 packet forwarding. This has not solved my problem.

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Ubuntu Networking :: Sharing Internet Connection From Ppp0 To Eth0?

Jan 23, 2010

i want to share the internet connection from Laptop to PC via LAN crossover cable
here's how i connect to the internet in laptop, and connected PC via LAN:

i need to share pppoe(ppp0) to (eth0) , that is what i've been doing in Windows before, but i dont know how to share in Linux, i tried to follow Ubuntu Help about ICS, but it doesn't work

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Ubuntu Networking :: Can't Connect To The Internet With Ppp0 While Eth0 Is Active

Jul 2, 2010

My machine has Ubuntu 10.4, installed a week ago. I'm connecting to the Internet with a Wireless 3G modem, the interface is named ppp0. Additionally, I have a network card that is connected to a home router, that's eth0. Everything works fine with eth0 disabled, all my apps can access the internet correctly. But, my issue is that when i enable eth0, i can't access the internet with any app.

So why do i need eth0 anyway? The thing is that i must share my internet connection with my sister, who is also connected to our home router. I planned to give her access by installing squid on this machine and configuring her browser to connect to squid. However, since none of my apps can connect to the internet while eth0 is active (whereas squid and all other apps work fine with eth0 disabled) I can't let her connect to squid while squid is working correctly.BTW selecting "use this connection only for resources on its network" under "routes..." of the ipv4 tab of "Auto Ethernet" made it a little better. Firefox and Xchat started to work with eth0 active. Squid still doesn't work though (althought it works just fine with eth0 disabled)

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Networking :: Use Both Networks Simultaneously Ppp0(usb Device) And Eth0

Apr 30, 2011

I am running a CentOS 5.6 as a Virtual Machine on my Laptop. And, to connect to internet I am using a datacard (usb modem) device (Tata Photon +).

Now, internet is working well on my VM through interface ppp0

The problem is that when I start my interface eth0, internet (running through ppp0) stops.

Quote:

[root@kick ~]# ip route show
172.29.242.9 dev ppp0 proto kernel scope link src 14.99.211.189
default dev ppp0 scope link
[root@kick ~]# ip addr sh
1: lo: <LOOPBACK> mtu 16436 qdisc noop

[Code]....

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Ubuntu Networking :: How To Set MTU For PPP0

Jun 15, 2010

internet works with MTU=1460 for ppp0. I set this up manually using ifconfig. What changes are required so that it is done by default when PPP0 connects or at boot?

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Ubuntu Networking :: Make An Application Use Ppp0 Exclusively?

May 18, 2011

I'm running 10.10 64 bit. I have a vpn service and I'd like to configure my bittorrent client to use only the vpn link (and NOT continue through my plain-old ISP service if the vpn drops). I imagine there are a few possible approaches to this:

1.have a script that checks if ppp0 is up an terminates the bt client if not

2.configure the bt client to use only ppp0 (though I tried this with qtorrent and it switches over to eth0 if vpn drops...)

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Networking :: Suse 11.3 Missing Ppp0 Interface

Oct 28, 2010

I just setup a SuSE 11.3/64 server and I am trying to setup pptpd for a vpn. I noticed thatg the ppp0 (or any pppx) interface is non-exoisting and I think that that is the problem why my gre packages are not being sent by pptpd (as I have checked all other options). I have tcp port 1723, and protocol port 47 (gre) open on the firewall (SuSEfirewall2). I have traced the responses using tcpdump and only when the server sends gre to the remote client, the client never receives it (the 1723 connection is established). I checked the old server (SuSE 10.2) that worked the vpn fine, and the only thing missing on 11.3 is ppp0. All other hardware (routers, etc.) are the same. I suspect that pptpd tries to use ppp0 and the interface is non-existing. I can remotely ssh to the server, dns works, samba works, everything else works. Is it something I am missing? How do I create if ppp0 and link it to eth3, the internet gateway?

As always, a windoze tech crashed the old server and I had to setup the new one in a hurry, just before going on vacation, and people want this done by yesterday? They paid $$$$ to the windoze tech (who said Linux is obsolete) even after he almost brought the company down!

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CentOS 5 Networking :: Ppp0 And Ppp1 Keep Switching Around?

Nov 23, 2009

my problem is i have setup 2x ppp used for adsl to split local and international bandwidth ppp0 is using the international account and ppp1 is using the local only account this all works fine but every so often i notice when i do an ifconfig that ppp0 is dialed up on the local account and ppp1 is dialed up on the international one, and sometimes a reboot fixes it and sometimes it doesnt

my config files are the following:

# Default ADSL network config file, as used by redhat
USERCTL=yes
PEERDNS=no
TYPE=xDSL

[Code].....

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Fedora Networking :: Network Manager - Adsl Connection - Ifup Ppp0 Doesn't Work

Nov 22, 2009

I have a pppoe adsl connection. When I disconnect and try to reconnect, network-manager keeps asking for my password. I type it again and again with no success. When I reboot, it works again. On ubuntu, I use pppoeconf and it works well. So on Fedora I made a connection with pppoe-setup but neither ifup nor
Code:

pppoe-connect
commands work. When I type
Code:
pppoe-connect
, it says
Code:
/usr/sbin/adsl-start: line 217: 13409 Terminated $CONNECT
"$@" > /dev/null 2>&1
. When I type

Ifup ppp0 doesn't work either. However, with exactly the same settings, ubuntu connects to the internet.

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Networking :: Eth0 Fixed IP - Eth1 DHCP Gateway - Access To Eth0?

Aug 19, 2009

5.10 Breezy configured as machine controller. Works great eth0 is a fixed IP to communicate with controller comms board. Not easy at all to alter - the comms board is hard coded to listen on eth0 for commands.

I can use eth1 as the default gateway and ping google.com, etc. But when I now attempt to communicate with the controller with netcat, e.g.

Code: echo !HH | nc 192.168.1.6 80

I obviously never get an answer since the request is passed via eth1. Using the -g option with netcat doesn't work either. I had a look at iptables but it doesn't seem to be able to do what I want. How I can still use eth0 as my communication port to the controller whilst eth1 is the default gateway?

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Networking :: Production Server With Static IPs On Eth0 And Eth0:1 - Getting Private LAN On Eth1?

Jul 1, 2010

I have two servers on a vlan at my datacentre/colocation and previously both servers had public IPs on their eth0 interfaces. The servers are HP ProLiant DL360s - one is a G4 and one is a G5 The newer G5 is now the LAMP server and the G4 has been retired and I want to repurpose it as an iSCSI target using openfiler freenas or similar.

My G5 has public/static IPs lashed to the eth0 physical interface and the eth1 is not configured to do anything yet. The G4 will have both interfaces available - perhaps one for ssh access from one of my static public IPs and the other to be a private IP on the local vlan. Here is what I am trying to get my head around...

The G5
eth0 - Public IP - full LAMP services on two or three virtual interfaces
eth1 - Private IP 192.168.0.1
The G4
eth0 - Public IP for ssh
eth1 - Private IP 192.168.0.2

Because my traffic between eth1 on these boxes is via private IPs on the local private vlan it doesn't add to my quota for bandwidth. How do I go about configuring the routing and gateways and other aspects of this so that I can run a private IP space network between the eth1s and still serve the outside world from the eth0s...

I am afraid that if I assign the private IPs to the eth1 interfaces the routing may either not work or interfere with the access to the production internet facing interfaces (eth0s).

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Networking :: Ignoring The Unknown Interface Eth0=eth0?

Dec 18, 2010

I'm running a dual boot Ubuntu 10.04/Backtrack 4 (Ubuntu 8.10) system. I can get internet in the BT4 side but not in the Lucid side. In Lucid I can ping my router, and the network manager says I'm good to go, but I can't get to any web sites. It all started when I tried to put my laptop on another network by mimicking the settings of a computer I had just unplugged from the network. MAC address and all.

ifconfig eth0:

Code:

eth0 Link encap:Ethernet HWaddr 00:1f:16:ba:4c:8c
inet addr:10.136.9.147 Bcast:10.136.9.159 Mask:255.255.255.240
inet6 addr: fe80::21f:16ff:feba:4c8c/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1

[code]....

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Ubuntu Servers :: 10.10 - Setup Eth0 With Subdevice Eth0.0 And Eth0.99 To Come Up At Boot

Apr 22, 2011

im trying to setup eth0 with subdevice eth0.0 and eth0.99 to come up at boot

eth0 is dhcp clint
eth0:0 is static ip
eth0.99 is 802.1q vlan interface
/etc/network/interfaces
Code:
auto lo
[Code]....

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CentOS 5 Networking :: Kernel Rpm Install After Error "Bringing Up Interface Eth0: Device Eth0 Has Different MAC Address Than Expected, Ignoring"

Dec 26, 2010

i install kernel rpm after i boot that kernel network not working kernel name : kernel-rt-trace-2.6.24.7-132.el5.centos.i686 [URL] error "Bringing up interface eth0: Device eth0 has different MAC address than expected, ignoring."

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Networking :: Sending Video Streams From Eth0 And Eth1 To The Other Server Programs' Eth0 And Eth1?

Jul 30, 2010

I try to generate a server client code. What i try to do is sending video streams from eth0 and eth1 to the other server programs' eth0 and eth1. In order to do that, i decided to use SO_BINDTODEVICE. But the code is not working. Am i misunderstood the usage of SO_BINDTODEVICE.

1-Defining two ports
2-Defining two sockets
3-Assigning host ips on them

[code]....

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Networking :: Kernel - Forward Packets From Eth0 To Eth1 And Eth1-to Eth0 As Well As Get A Copy Of These Packets For Analysis

Sep 27, 2010

I have a hardware device with two ethernet ports, eth0 and eth1 running Centos 5. Basically my goal is to forward packets from eth0->eth1 and eth1->eth0 as well as get a copy of these packets for analysis. If I set IP routing to do the forwarding then I won't get a copy of the packets for analysis.

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Ubuntu Networking :: Cannot Able To Browse Any Sites

Mar 15, 2010

Its a single PC, I can ping my connection but I cant able to browse any sites..These are my outputs.

Code:
karthick@Learners-desktop:~$ ping -c 3 google.com
PING google.com (209.85.231.104) 56(84) bytes of data.
64 bytes from maa03s01-in-f104.1e100.net (209.85.231.104): icmp_seq=1 ttl=45 time=355 ms
64 bytes from maa03s01-in-f104.1e100.net (209.85.231.104): icmp_seq=2 ttl=45 time=355 ms
--- google.com ping statistics ---
3 packets transmitted, 2 received, 33% packet loss, time 2000ms
rtt min/avg/max/mdev = 355.239/355.534/355.830/0.665 ms

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Ubuntu Networking :: Can Ping And Browse By Ip But Not By Name

Apr 23, 2010

recently I got new wireless card, att usb Quicksilver(based/produce by Option?), for att.Regular gnome network manager freezes the computer when I am plugging it it therefore I installed the one from wicd.net.Also, I am using HSOConnect (to connect by to G3 network), and sometimes I connect to regular wireless g connection through router.

Under both cases I can ping the website by IP and can access the website by ip (ex. google) but can not ping or browse by name.As a side note... I can use and access Skype fine under g3 network and normal wireless.I tried browsing and finding other solutions in past few days but ended up breaking everything and reinstalling to get back to the point I am at now.I am working on the road, so not being to broswse is rather crippling to me.... also I can access internet normally only from home from different computer now.

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Ubuntu Networking :: Can Only Browse IP But Not With Domain Name

Jun 9, 2010

I haven't been playing with linux for some years.

My setup:
Private router which connects to the internet.
Host: win7 with VMWare workstation
Ubuntu 10.04 runs in a virtual machine on VMWare workstation.

Win7 works fine. Ubuntu can ping with valid ip address and firefox can load a webpage if provided with valid ip address. Ubuntu cannot ping with domain name and firefox cannot browse with domain name. Examples:
Ping google.dk results in

Code:
ping: unknown host google.dk
Writing google.dk in the address bar of firefox results in

Code:
Firefox can't find the server at www.google.dk.

Code:
peterbf@ubuntu:~$ ping 216.239.59.104
PING 216.239.59.104 (216.239.59.104) 56(84) bytes of data.
64 bytes from 216.239.59.104: icmp_seq=1 ttl=237 time=40.3 ms
64 bytes from 216.239.59.104: icmp_seq=2 ttl=237 time=38.8 ms
^C
--- 216.239.59.104 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1001ms
rtt min/avg/max/mdev = 38.892/39.645/40.398/0.753 ms
Writing 216.239.59.104 in the address bar of firefox results in a correctly loaded google page.

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Ubuntu Networking :: Cannot Browse By FQDN

Sep 5, 2010

brand new install of 10.4 server and I'm having a strange issue. I cannot browse to any website by it's domain name, but I can connect via IP address.

I've been googling around and did the following:

added nameservers to /etc/resolv.conf based on an nslookup from my windows box:
nameserver 71.250.0.12
nameserver 68.237.161.12

I commented out the hosts line in /etc/nsswitch.conf per another site and changed it to: hosts: files dns

I can see other computers on my local network via IP and I can browse to the server's default apache page by it's hostname, so I'm assuming it's something about the server's dns resolution, but I'm not sure of my next step.

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Ubuntu Networking :: Browse The Domain Via VPN?

Nov 3, 2010

I have Ubuntu 10.10 at work and I've installed a Windows XP virtual box machine under it, that is joind to our Active Directory domain(but Ubuntu is/will not joined). I've set up VPN on XP box and I can connect to it from Ubuntu. I want to browse network shares(that use AD for permissions) and domain sites(like sharepoint) from Ubuntu. But even after connecting to VPN when I can't browse network shares, and nautilus asks for domain user/pass and tries to open share with no success. What extra steps is needed to browse my corporate network from Ubuntu via VPN?

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Ubuntu Networking :: Cannot Browse Window 7 Share?

Feb 18, 2010

I could not get XP & latest Karmic Xubuntu to network. But now I can browse Xubuntu share/s from Win 7 but not vice versa (I cannot browse Windows 7 shares from Xubuntu laptop.) How would I accomplish this?

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Ubuntu Networking :: How To Browse Windows Network

Mar 2, 2010

Ubuntu 9.10 now, before 9.04 was installed. On both versions I was unable to browse windows network - when I visit corresponding icon in nautilus, I see error message:
??????-???? -- ???????????? ??????.png
Looks like some service was missed at startup and not running.

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Networking :: Cannot Browse Network From Ubuntu / Resolve This?

May 23, 2010

I cannot browse the network from Ubuntu, but I can see the ubuntu machines from the windows including file and printing.
Nautilus gives the following error:
Could not display "network:///".
Nautilus cannot handle "network" locations.

Workgroup names all set the same
Sharing allowed on all machines

I have read all of the postings on this I think and have not been able to implement a solution.

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Ubuntu Networking :: Unable To Browse On One Connection

Jun 21, 2010

We have two internet connections here, one through Allegro which goes through an ISA 2004 box and an ADSL2+ connection.Everything works fine when connected via the ISA box. Windows machines (and last I checked, a Macbook) work fine on the ADSL2 setup, but nothing Ubuntuesque will work properly through it.DHCP is fine (and the same thing happens with a static IP), it gives a proper address, DNS works fine, it's just whenever a page attempts to load, Firefox will sit at the "Waiting for <site>..." status until it gives up. apt does the same thing.What I've tested it on so far is:

- a homemade 9.10 box
- an IBM xSeries 346 running 10.04
- an Acer Veriton M460 running 10.04
- an Acer Travelmate 6293 running 10.04

None of them will work with it. The Travelmate and the IBM are dual-boot, both will work fine on the connection under Windows. The Veriton is Windows only (tested using a Live CD) and is much the same.The router is a Thompson TG782T (Telsta branded). I'm at a loss with this. Any ideas? I can provide more info if needed.

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Ubuntu Networking :: Can't Browse The Net - Connections Intact

Aug 3, 2010

i have my connections up & running once i connect my laptop in my .....but the trivial problem of cant browse the internet

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Ubuntu Networking :: Connected To Internet But Cannot Browse?

Oct 14, 2010

I have installed ubuntu a few times in the past but if I've had to get messy with the command line I bailed. So given that I wanted to set up a home server/media center, I tried win server, but given research had told me that it is easier to accomplish all the features I wanted with Linux I decided the time had come to really see what I'd been missing out on. So what I am looking to accomplish is a full lamp stack, xbmc, samba, mail server, VMWare server, rtorrent, ftp, an probably a few others I have forgot because I can't get to my check list right now. Settled on ubuntu 10.10, had installed it a couple of times while it was still in beta, just to get a feel for it and get everything working so that when it was released I could do a fresh install knowing how to configure everything.

So on Sunday the time came. Everything was going fine until last night, I was installing roundtable webmail and all I came to download something and FireFox can't display any web pages, postfix can't deliver mail. The server can ping local machines but not google.com or another internet site, I can ssh into it an get a remote desktop session via various methods, both either over the local network, or internet. The website is getting served both locally or internet. I just cant seem to make any outbound connections to the outside world.

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Ubuntu Networking :: Ping Fail But Can Browse?

Dec 23, 2010

I have a DSL connection, DHCP, able to browse and no problem with that.

But I can't ping websites or their ip address. Should I be worried? I'm using Maverick through Wubi.

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Ubuntu Networking :: Established Connection But Not To Browse

Jul 5, 2011

there is an open wireless i can connect it -in ubuntu- but can not browse anything.we tried to connect via mobile it's working fine ,in addition via Windows XP it's fine ,but not in ubuntu why???!!

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Ubuntu Networking :: Proxy Plugin For FireFox - Can't Browse

Aug 22, 2010

without proxy's like Ultrasurf and Freegate you can't browse them; So when i was running on Microsoft Windows, i was using Ulrasurf or Freegate to browse these web pages; but in Ubuntu i can't run .exe programs.. How to find a good proxy program to browse these web pages or if some plug-in is exist in Firefox to browse these pages, How to download it and teach me how to use it.

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