Debian :: Connman Does Not See Networking Interfaces

Jun 24, 2011

I'm using Debian Squeeze with backports turned on and I've installed connman and it cannot see my wireless networking interface. I know my wireless card has a working driver because I have WICD on the same system and it connects just fine.I am using the Enlightenment desktop though and it only integrates with the connman wireless manager - so I would prefer to use this instead of WICD. Anyone have any ideas on how I can get connman working? What extra configuration needs to be done after installing?

I added my user to have the same permissions as root to the /etc/dbus-1/system.d/connman.conf file and I added my tiwlan0 to /etc/network/interfaces as a DHCP connection with no changes in functionality :-/. Been searching around online and reading man pages for the last couple days with no good results. Any input would be awesome!

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Ubuntu Networking :: Connman Installation Breaks Ethernet Connection

May 16, 2011

I was browsing the available packages to install the weather indicator and noticed that a network indicator was available. apt-get said that it needed to install 'connman' and remove 'network-manager' and 'network-manager-gnome' in order to install the network indicator. I foolishly assumed it knew what it was doing so I went ahead and performed the installation/removal and restarted the computer.

Now I cannot connect to the internet. I only have an ethernet card for connection to the internet, no wireless or otherwise. The configuration I use is not DHCP, but a manual settings of address/subnet/gateway and name servers

When I try to set the network values through the network indicator some of them do not stay set. The gateway value appears to be set, but then after closing down the indicator window completely it comes up with the value 'Modified'. The DNS servers is the only other value that does not stay set, but it only changes to be blank. The connection never works.

So, I downloaded 'network-manager' and 'network-manager-gnome' on another computer, transferred the packages by USB, and reinstalled them (uninstalling connman and the network indicator). But the network connection remains broken. At least with 'network-manager-gnome' the values I set stay set, they just don't work anymore. I've tried editing /etc/network/interfaces to previously working values directly, but they do not seem to have any effect either. The connection no longer works.

I really do not care if I use the network indicator or not at this point, I simply want the network connection to work properly.

Edit: I realize I forgot to say that I'm using Ubuntu 11.04 (upgraded from 10.10). The network card is the "Integrated Broadcom 57780 Gigabit Ethernet controller".

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Ubuntu Networking :: ADVISEADDR: Error In Specifying Interfaces: No Existing Ip Interfaces Found

Jan 7, 2010

I have a weird issue that I have not seen on any forum. My jaunty on DELL studio laptop seems connected to net, but I can not access any network service (ssh, firefox etc.). But when I connect a cable the cable lights blink as it should be and in wireless connection my wifi light blinks.

It was working 2 days ago without problem, and I have not done big changes recently.I removed and reinstalled network-manager and network-manager-gnome. Nothing changed. I see a message in each restart as follows (when Openafs is starting). I can reproduce it with "/etc/init.d/openafs-client restart"

Code:

ADVISEADDR:error in specifying interfaces: no existing ip interfaces found

#lspci

Code:

04:00.0 Network controller: Intel Corporation Wireless WiFi Link 5100
08:00.0 Ethernet controller: Broadcom Corporation NetLink BCM5784M Gigabit Ethernet PCIe (rev 10)
#lshw -c network

[code].....

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Fedora Networking :: Enable 3 Interfaces \ When Start One Interface The Another Interfaces Goes Down?

Jan 25, 2010

I have 3 Interfaces for a different LAN's and when I start one interface the another interfaces goes down.How can it's possible?I configure my ethernets as:

Code:
/sbin/ifconfig eth0 172.16.3.108 netmask 255.255.0.0 broadcast 172.0.255.255
/sbin/ifconfig eth1 172.16.3.109 netmask 255.255.0.0 broadcast 172.0.255.255
/sbin/ifconfig eth2 172.16.3.1110 netmask 255.255.0.0 broadcast 172.0.255.255

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Ubuntu Networking :: Adding Interfaces To /etc/network/interfaces?

Apr 16, 2010

If I try to add a new interface (eth1) to /etc/network/interfaces, I get

Code:
* Reconfiguring network interfaces... SIOCSIFADDR: No such device
eth1: ERROR while getting interface flags: No such device
SIOCSIFNETMASK: No such device

[Code]...

How do I add 2 interfaces and get anyone of them to work, as available ?

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Debian :: Virtual Networking In Qemu / Add Interfaces To Two Networks

Sep 5, 2015

I just installed qemu and want that my VM should have net access too. So for that I installed bridge-utils and used URl....Add both the interface with the second computer, and the interface that leads to the existing network. Do it with this command: # brctl addif br0 eth0 eth1

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Debian Configuration :: Networking - Netinst CD - Internet Connection Only Works After Edit The Interfaces And Resolv.conf Files Manually

Aug 3, 2010

I had some trouble with the netinst CD and I had to install lenny with the 6DVDs instead. My internet connection only works after I edit the interfaces and resolv.conf files manually. So my question is: can I do that from the netinst CD before it actually needs the connection to install everything? (otherwise I'll just need to use the DVDs.

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Ubuntu Networking :: Startup Networking Automatically Using /etc/network/interfaces

Jul 2, 2010

I'm on an embedded system that doesn't have Gnome, and I'm trying to startup networking automatically using /etc/network/interfaces. Here's what I have.

[Code]....

eth0 comes up just fine. wlan0 comes up, but it's unable to acquire a DHCP address. I added the following lines to /etc/rc.local, and wlan0 comes up all the way, but I'm not too crazy about this hack.

[Code]....

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Debian :: Configuring Interfaces For Ethernet

Feb 27, 2016

I'm trying to connect my computer to an ethernet cable and having no luck, I looked up the problem and was told to put

Code: Select allauto eth0
iface eth0 inet dhcp

But after a restart the computer I still did not have access to the internet (aslo, dhcp is enabled on my modem, I checked)...

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Debian :: Still Can't Reload Network Interfaces?

Mar 24, 2011

So I've always asked this in the past when I get on a Debian system. This makes no sense to me but I just don't see how I restart network interfaces (i.e. eth0) on a standard Debian install. If I change the static I.P. address listed in /etc/network/interfaces from x.x.x.100 to x.x.x.101, I then assume I can simply do any of the following:

- /etc/init.d/networking stop | start
- ifdown eth0
- ifup eth0
- service networking stop
- service networking start

All the commands above do nothing. My only solution I know that works and implements the changes I've made is a complete system reboot which to me in Linux, is ridiculous. I've struggled with this over and over and nothing I do correctly assigns the new I.P. in the 'interfaces' file to the actual adapter. This isn't my single isolated Debian machine but every Debian machine I can get my hands on. Servers, workstations, VM's, any release, etc etc etc. Below is my interfaces configuration file:

Code:
auto lo
iface lo inet loopback

[code]...

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Networking :: Got Two Interfaces With Same Mac?

May 6, 2011

I'm testing some network setups, and bought two dirt-cheap USB network interfaces. My plan was to attach these two to an embedded device (sheevaplug) and mess with firewall setups. However, the two interfaces are absolutely identical; they have the same MAC, and lsusb -v is the same for both, line by line (except for device number, which tells the order the devices are plugged in, I believe?). Also, this is a single usb bus (single port, with a hub).

Now, obviously I can't make much of a firewall setup if I can't tell the interfaces apart. I realize I probably hit a brick wall, but does anyone have thoughts on this?

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Debian :: Can't Set Default Gateway By Interfaces File / What To Do?

Jul 29, 2011

I recently switched from Ubuntu server to Debian server, and I carried over many of the same configurations. This is pretty much a fresh install.

I cannot get the default gateway to stick by using the /etc/network/interfaces. I can ping my default gateway but nothing beyond it either by name or IP. code...

I would like the default gateway to stick between reboots. Could someone point me in the right direction?

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Debian Configuration :: /etc/network/interfaces: Ra0 Or Wlan0?

Mar 30, 2010

I had one of those random system deaths, so reinstalled squeeze (daily netinst image I think...) on my eee 1000, which uses an rt2860 wireless chip. The new install only installed 2.6.32, which I had been avoiding using because of a few problems, including it dealing with networking slightly differently. I couldn't get it to work - even without encryption - using wicd. Having had a read of [URL]... , I had a look at /etc/network/interfaces, which read; This file describes the network interfaces available on your system and how to activate them. For more information, see interfaces(5).

[code]...

ra0 is now called wlan0, as far as I'm aware. I've read in several places that it is best to expunge this file of all references to wifi, so I removed the bottom section (after '# The primary network interface'). I still got nothing. However, if I go ahead and change the 'ra0's to 'wlan0's, it seems to work - wicd connects. Not very familiar with Debian (spent more time on SUSE. Drop your tomatoes - I like it. Any idea what is happening? Is what I'm doing wrong? Conversely, is the file wrong? Should it be reported? Against which package? Including any particular files?

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Debian Configuration :: How To Get /etc/network/interfaces To See Usb Wifi

Jun 16, 2010

I have a netgear wg111t that is running with ndiswrapper. It has an atheros chipset, but calling it ath0 didn't work.

Heres /etc/network/interface :

# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
# The loopback network interface auto lo

iface lo inet loopback

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Networking :: Configuring With Two HW Interfaces?

Oct 16, 2010

I have two interfaces, gprs0 and gprs1, both connected to the Internet from the same HW device, but through two different access points I just read another blog entry with a guy who had two network cards, using one as a back up - I guess this is a little similar, but should be much easier I am guessing - I am just lost Using ifconfig (IP address given by the network) and route to setup the connection,

ifconfig gprs0 10.20.30.40 up
route add default dev gprs0
ping 66.102.7.99 works fine
afterwards

[code]....

There is data being transmitted and received to device again, I guess the kernel just doesn't know where the incoming data should go without the correct routing tables? Or what exactly is going on?The question I have is how do I configure the device to do the correct routing, using only the ifconfig and route commands? Maybe too trivial for you guys, but I am getting tired of goofing around not knowing what is up and down anymore

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Ubuntu Networking :: No Networking Interfaces Working

Jul 28, 2011

I installed the latest release of Kubuntu on to my dell laptop about 3 days ago, I fell asleep last night and woke up to my laptop not being connected to my wireless(it was when I fell asleep, it didnt reboot or anything overnight an dno one touched it), so I plugged in an ethernet cable and it still did not detect an internet connection, then finally it connected through my phones mobile internet via Usb.

However none of the built in networking devices are working, I have them all enabled.My WLAN Interface says "Unmanaged" and Networking interface complains the cable is unplugged even when it is not.I know you guys will need some additional info from me to help me.I just used my mobile broadband to install Wicd network manager but thats just a temporary fix, as it doesnt fix my ethernet issue and I want to be able to use the network manager itself to manage my networks.

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Debian :: Browser Stopped Working After Reconfiguration Of Interfaces

Nov 5, 2015

My Iceweasel is not consistently opening pages. This is new behavior after changing the /etc/network/interfaces file for setting up bridging. The home page is advanced google search. When Iceweasel opens to google, I get a message saying the site is not secure and won't open it. Inputting [URL] ...., it takes about 90 seconds before it opens the site then freezes. If I go to forums.debian.net, the site is fully navigable, if I put anything in the Iceweasel search bar, it freezes.

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Debian :: Install Fail - Code Based Interfaces ?

Mar 23, 2011

I installed my new debain.(6.0) but its all code. (i looked it up, i need a a win X or GNOME). but since i dont know code based interfaces, how do i install it on the computer. (once Ive got my visual interface im generally fine till i hit advanced)

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Debian Configuration :: How To Modify Traffic Between Two Interfaces In Linux

Aug 8, 2015

I have a laptop connected to internet via wlan0. I also have eth0 interface and with it I share internet. I want to modify/filter all the traffic passing by the first laptop, something like this:

Code: Select all                    *---------------------------*
                    |        LAPTOP 1           |      *--------------* ?
                    |-----*    *------*    *----*      |              |
    INTERNET<------>|wlan0|<-->|MY_APP|<-->|eth0|<---->|ANOTHER LAPTOP|
                    |-----*    *------*    *----|      |              |
                    *---------------------------*      *--------------*

I know that in FreeBSD it is possible to use ipfw for that purpose, because it build-in into kernel. We set for example rule Code: Select allipfw add divert 2000 ip from any to 1.0.1.1

and we can use our own application to process those packets, reinject them forward etc. It will work also fast, because as I said, it build into kernel.

Is there any standart Linux-based solution to do the same? I found some info about netmap-ipfw. Is this a correct solution? Or I have to use for example IP-aliases and iptables to do that?

I need to process all the IP-packets, not only TCP/UDP/etc-protocol. Solution also must be very fast.

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Debian Configuration :: Multiple Network Interfaces With VirtualBox?

Mar 29, 2010

I have a rather urgent problem with my network, I got two virtual network interfaces one internal and one external. The problem is; I can't get connection to internet. The external NIC is set as a NAT and the internal is... internal.

/etc/network/interfaces
auto eth1
iface eth1 inet static
address 192.168.1.200
netmask 255.255.255.0

Running with this configuration makes my internet connect go away, however if I remove the configuration for eth1 everything is working fine.

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Debian Configuration :: Bringing Up Wireless Interfaces At Boot Also

May 11, 2010

My new Squeeze machine detects all of my hardware including the LAN and WLAN cards, but only brings up the LAN card. There isn't even an entry for it in /etc/network/interfaces for me to modify. I tried adding the info manually but then the entire network wouldn't start. I had it configured as a static IP and I know the commands were correct due to them working on the LAN card. I believe that the name "wlan0" was causing the problem, but how else can I bring it up at boot?

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Debian Configuration :: Network / Interfaces Allow-hotplug And Auto?

Jan 10, 2011

I was just wondering if there's any point having both auto and allow-hotplug against the same interface in network/interfaces as allow-hotplug seems to bring an interface up at boot on its own.

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Debian Configuration :: Reconfigured /etc/network/interfaces For A Static IP?

Jun 27, 2011

I have a Dell PowerEdge SC430, Squeeze 6.0.2 box, Broadcom NetXtreme NIC which works fine DHCP. The network-manager package is not installed. I have now reconfigured /etc/network/interfaces for a static IP:

auto eth0
iface eth0 inet static
address 192.168.1.2

[code]....

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Debian :: Version Lenny: Define A GW In The Interfaces File?

Jan 28, 2011

Do you have to define a Gateway in the interfaces file?

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Ubuntu Networking :: Why Create Sub Interfaces?

Oct 31, 2010

What is the use of creating sub interfaces, for example eth0.1 etc. can someone please give an example of a situation where it would be useful

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Ubuntu Networking :: Two Interfaces In One Host?

Feb 6, 2011

I have a laptop "fura1" with two interfaces, eth0 (Ethernet) and eth1 (wifi), which I assign IPs 192.168.1.10 and 192.168.1.11 respectively. Then a desktop "fura2" with only one interface eth0 (Ethernet). Both are connected to a local network along with other appliances. My doubts arise on how to configure the /etc/hosts file of the desktop "fura2" taking in account that "fura1" has two interfaces, so two IP, but, obviously, only one hostname.

My first attempt for /etc/hosts of "fura2" was:

127.0.0.1localhost
127.0.1.1fura2
192.168.1.10 fura1 fura1.workgroup
192.168.1.11 fura1 fura1.workgroup
192.168.1.102 PDA PDA.workgroup
192.168.1.103 MT MT.workgroup

But it seems to my that assigning two different IPs to the same host is not a good solution. On the other hand, if I give different name to each interface, I will got a host with two hostname (?).

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Networking :: 802.3ad Bonding Not Using All Interfaces Equally

Apr 14, 2011

I am seeing an issue on a few servers where it doesn't appear all NICs in the 802.3ad lag are all operating at the same level. A few of the servers have two bonds each with two NICs in each bond.I have two NFS servers that each has 1 bond with 3 NICs.All are RHEL5 x64 2.6.18.I think the reason why I see one interface dominating RX and another dominating TX is due to the xmit_hash_policy but there are three hosts that use this particular server for network traffic.That's 3 different physical mac addresses.The layer2 algorithm should be fine in that situation I would think.Would I just be better off with balance-rr?

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Networking :: Bridged Interfaces In CentOS

Nov 20, 2010

I have two eth interfaces bridged in CentOS, one of these interface is connected to a Windows Server, I can do a ifconfig down on both these interfaces and there is no change of status at the windows side, I don't get the message that 'network cable has been unplugged'

Is this behavior normal ? I think when you shut an interface than you get the interface down message at other end ? And what becomes the status of the bridge if I shutdown one of its interface ?

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Networking :: Getting A Firewall With Multiple Interfaces?

Mar 11, 2010

I would like a basic firewall on my netbook and first attempted this by using firestarter as i have no experience in writing IPTABLES rules from first principle and to be honest the syntax looks horrific! the problem with firestarted is that when i selected WLAN0 to be the internet connected port everything worked fine until i connected to a VPN at which nothing would work (the only error i got was when pinging an IP address when i got sendmsg not permitted) my normal setup is this.... normally im connected via WLAN0 to the internet. but one one particular network i must activate the VPN to use anything, this creates another interface tun0. both wlan0 and tun0 will be assigned an ip address but only the tun0 will do anything (the wlan0 one is configured by the network to just allow traffic to the vpn gateway and nothing else) what i really need is some way of creating a basic firewall (drop all incomming except ports i specify) that lives on wlan0 unless tun0 is active in which case it moves to tun0

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Networking :: Iptables Nat Bouncing Through Interfaces

Apr 10, 2010

I have 2 interfaces (only one wan facing) with public ip addressing. when i nat to the outside network, inside routed networks work fine, but when i nat to the inside interface the routed networks no longer work. That is too say when I nat to an inside ip, I appear natted, and not routed, to routed ip. My question relates to iptables: How to I say 'nat everything but the routed networks'? I have found that -d ! x.routed.1.x/x works: but I would like to write the rule so that it says -d ! x.routed.1.x/x + x.routed.2.x/x

Nat outside, working routed net:

Code:
iptables -t nat -A POSTROUTING -i x.ouside.eth.x -s 192.x.x.x/x -j SNAT --to x.outside.eth.ip

This works and I get 1 routed network (I have to drop the -i to make it work - why?):

Code:
iptables -t nat -A POSTROUTING -s 192.x.x.x/x -d ! x.routed.1.x/x -j SNAT --to x.inside.eth.ip

I would like something like this:

Code:
iptables -t nat -A POSTROUTING -s 192.x.x.x/x -d ! x.routed.1.x/x + x.routed.2.x/x /
-j SNAT --to x.inside.eth.ip

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