Networking :: ATT Uverse DHCP Not Assigning To Red Interface Interface On Smoothwall?

Feb 14, 2010

I just had an ATT Uverse RG installed. However my Smoothwall router that previously worked fine with the ADSL SpeedStream is no longer accepting an address assignment DHCP ip address from this new gateway. (3800HGV-B)Any thoughts ideas or experience working with this hardware? ATT only supports Windows and Mac

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Networking :: Skip DHCP Request When Interface Is Down?

Apr 26, 2010

Google is full of users which cannot get a DHCP address So no matter what search term I use, I only see solutions which do not apply to this problem. I am running Debian Squeeze on a netbook eeePC 1001P I have a wireless interface and a wired interface defined in /etc/network/interfaces:

Code:

auto lo
iface lo inet loopback
auto eth0
iface eth0 inet dhcp

[code]....

Both interfaces WORK! When I have plugged in a cable, eth0 acquires and gets an IP, when I am in reach of the WiFi, wlan0 gets an IP address. Now when I want to use only wireless, and I have no LAN connected, this is what happens at boot:

Code:

ADDRCONF(NETDEV_UP): eth0: link is not ready
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 3
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 5

[code]....

This is fine, however it takes forever (I think 60 seconds) before DHCP decides to time out. That is awkward. This is my wife's computer and I cannot tell her to intervene manually when she is either in Wifi range or on the LAN. Why is dhclient called when it is detected that eth0 is not ready? How can I disable acquiring a DHCP address on an interface which is not ready? when a link is not ready, acquiring a DHCP address is skipped. How can I configure that? I have looked thru the ifup scripts, but nothing. Where do I see what is happening when the interface is auto eth0?

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Server :: Heartbeat Not Assigning Virtual IP For Interface Eth0

Jul 19, 2010

I have followed th given site for HA configuration in my virtualbox but heartbeat is not assigning virtual IP for interface eth0 [URL]...

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Fedora Networking :: Setup DHCP Server Via Virtual Interface?

Mar 10, 2009

is it possible to setup a DHCP server using the loopback or a virtual interface? I installed Sun VirtualBox on my fedora system and want to try and kickstart them from within the same box on a virtual network. Is this possible and has anyone done it? I only have a single NIC in the box and it is on my public network.

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Networking :: DHCP Offers Not Being Limiting To Specified Vlan Interface On Debian?

Jun 25, 2010

I have configured dhcp3-server on my debian box and I'm wanting to offer dhcp on one of the vlan interfaces. The dhcp is functioning but when I test applying it to a different vlan, the original PC can still get an IP. For example: eth1 has vlan100 and vlan200. Our managed switch has the ports configured such the pc1 is on vlan100 and pc2 is on vlan2. This works fine and I can inter-route between vlans with static IPs. Our dhcp config is currently set as:

ping-check true;
ddns-update-style none;
default-lease-time 21600;
max-lease-time 86400;
INTERFACES="vlan100";
authoritative;

[code]....

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Networking :: Prevent Auto Up An Interface At /etc/network/interface File ?

Jul 18, 2011

I have a ppp0 entry with post-up options like this

mapping ppp0
map none photon-plus motorola
map timeout: 12

[code]...

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Ubuntu Networking :: Configuring The Network Interface Via Dhcp - Network Messages - Code: 00 55 89 E5 0f 1f 44 00 00 Fa 5d C3 90 8d 74 26

Apr 7, 2011

I am totally new to Linux and have just installed ubuntu 10.10. After configuring the network interface via dhcp I started getting these messages that come in so frequently I can't configure anything else.

[87.186415] Stack:

Why I am getting this messages and more importantly how do I get rid of them.

The installation is on a VM on Hyper-V.

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General :: Get The Interface To Be Configured Through DHCP?

May 18, 2011

I have an ARM system that has been pre-loaded with some variant of Linux. I don't know the distribution; I can only see the kernel number in dmesg.

In /etc/network/interfaces, I set eth0 to
auto eth0
iface eth0 inet dhcp

After I save and reboot (or run ifdown eth0 followed by ifup eth0), I can see that the networking system is searching for a DHCP server and actually obtains a lease on a valid IP address, but when I run ifconfig, the interface has not been assigned the address that it pulled down from DHCP. It has been assigned a 192.168.. address.

I noticed in dmesg that a variable "ip" is passed to the kernel at boot with the same address that is overriding my DHCP address. How can I disable this overriding behavior? I noticed a dynamic environment variable in u-boot called ip. I set it dhcp and saved it to nv storage, but the problem persisted. I tried to set the u-boot environment variable ipaddr to dhcp, but was informed that this wasn't a valid value for the variable.How can I get the interface to be configured through DHCP?

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General :: Unable To Use GUI Interface Meant Graphics Interface?

Apr 11, 2011

i am using windows 7 in my laptop and linux is installed on virtualBox but my problem is the screen is showing small in virtualbox is there any way to enalarge the screen to show like windows screen? i did before by using VGA setting but it made problem me i was not able to use GUI interface i meant graphics interface
it was just showing me Command Prompt.

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Networking :: DHCP Script - Assigning Multiple IP Addresses By Mac?

Sep 6, 2010

Ive been trying to give certain clients an IP adres by mac adress. For this I use the folowing code:

host apex {
hardware ethernet 00:00:00:00:00:00;
fixed-address 192.168.250.100;
}

This works perfectly, however when I try to add a second client this way it doesnt. I tried to add the above code multiple times as a whole (2 times the above code) but that doesnt work. I also tried to just add more lines under host apex but this also doesnt work.

So my question is: How do I add more of this mac related IP adress assignments in the dhcp.conf?

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Security :: Iptables -L Does Not Show In-interface Or Out-interface?

Feb 26, 2011

When I do...# iptables -L...I see rules in my INPUT and OUTPUT chains that look scary:ACCEPT all -- anywhere anywhere...but these rules only apply to the loopback interface. I tested it and the server cannot be reached on open ports from the outside world. How can I make iptables show the interfaces that the rules apply to?Otherwise, every time I do iptables -L it will scare the crap out of me.

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Red Hat :: Add IPs To A Network Interface As Virtual Interface Like Eth0:0?

Apr 14, 2011

I found multiple sites explaining how to add IPs to a network interface as virtual interface like eth0:0. However I can add IPs to an interface as well using the ip command: ip a a 192.168.2.2/24 dev eth0 What I want to know is how I can make this persistent on rhel/centos.

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Programming :: Interface "eth0" Which Is Down - Wasn't Displayed But Loopback Interface Has Been Displayed

Jan 6, 2011

The following are the output of command "ifconfig -a":

[Code]....

The interface "eth0", which is down, was not displayed, but loopback interface has been displayed. So, how can I make my application display all interfaces, including the interfaces which are down, but excluding the loopback interface?

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Networking :: Possible To Access Web Interface ?

Apr 2, 2009

is it possible to access any application is not in /var/www/html/ via web interface ?

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Networking :: Actually Uses Interface Name Mapping?

Apr 12, 2010

Who actually uses interface name mapping? Why, and what advantages do you get out of it?

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Ubuntu Networking :: Can't Get Traffic Across Interface

Feb 2, 2011

I've got 4 or 5 of these TRENDnet USB network adapters ( TU-ET100c ) that I use frequently when I'm configuring firewalls or IPS devices for customers. I use them in combination with VirtualBox to test. They've always worked great until my new laptop I just got, and I put 10.04 on it. Previously I was on 9.x. Sometimes they will give a link light, other times not. And when they do the interface shows that it's up, but I can't get any traffic across the interface.

[code]...

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Ubuntu Networking :: No WLAN Interface On 11.04?

Apr 29, 2011

Today I upgraded from 10.10 to 11.04. After accidentally turning off the computer during the upgrade, booting into recovery mode, remounting the file system as writable and finishing the upgrade, it worked just fine.

However, I can no longer use any wireless networks. Wired ethernet works fine, but the wireless inteface won't even show up when I run ifconfig. When I first installed 10.10, it worked instantly and I was able to use it during installation.

I have an HP Compaq nx7300 laptop with a Broadcom BCM4311 network card.

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Networking :: RJ45 Wan Interface Router?

Mar 13, 2010

I'm looking for a router than has an RJ45 WAN interface, and at least 2 RJ45 LAN ports.It also needs to have WPA-AES capability and an SPI based firewall.i saw this one but was a bit concerned about the 3G 'tag' in its name. could i safely assume it will function as a normal router?e.

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Networking :: Setting Up An Ethernet Interface?

Jun 4, 2010

I want to set up an ethernet interface using C language in Linux. Currently it is being done by :

system("/sbin/ifconfig eth1 192.168.0.29 up");

But I dont want to use the system call. Kindly suggest me any other way to do it..

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Red Hat / Fedora :: XEN And Networking - Interface Comes Up As USB0

Apr 19, 2010

I'm running CentOS 5.4 and have problems with a USB-Ethernet network interface. It works in another, very similar environment but now I added Virtualization when installing the system. The interfaces comes up as usb0 - as usual, and I'm sending and receiving packets (PPPoE) but there seems to be a link missing so that the ppp session can be build. I wondered if this has to do with the Xen virtual environment running which installed a lot of virtual interfaces and bridges, but not for the USB interface.

The problem is that for PPPoE server, the interface must not have an IP address assigned - not an option when creating a new host interface. But even when I do so, the interface seems unlinked somehow. Funny thing, I can monitor the incoming and outgoing packets using Wireshark. I have not (yet) set up a virtual machine/guest system but the default machine is running.

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Networking :: Can't Access Second Network Interface?

Mar 29, 2011

I'm having all sorts of problems connecting an access point to my computer, but here is one piece that I hope will get me going, if I can get it solved.My computer has two network interfaces, eth0 and eth1. eth1 connects to the cable modem and thence the world, and works fine. eth0 is supposed to connect to the access point over a private network. Here is the output from route with my IP address blotted out:

Code:
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface

[code]...

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Networking :: Disable Ping On One Interface But Allow On Another?

Aug 13, 2010

I have 2 NICs on my computer connected to 2 different networks. On 1 interface i wish to disable the return of ping and on the other interface i wish to still allow ping. Is this possible? Both interfaces need to be able to send and receive data. I know that you can disable ping in /etc/sysctl.conf but is there a way to set the ping value for a specific interface only?

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Networking :: Error On Ethernet Interface

Nov 2, 2010

I've a server with two NIC. Sometimes the server becomes unreacheable. When this happens, I did a reboot and then it works.. but when looking at the interface status (with ifconfig command), I've notice several "errors".So, I've tried to change NIC.. but the problem occurs again.I've also changed the port on the switch.

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Networking :: How To Tag Server Binding Interface

Dec 21, 2009

My query is how to tag Linux server bonding interface what mode I use for bonding in prospective of interface tagging.

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Networking :: Internal Wireless As Outside Interface ?

Dec 3, 2010

What i wanted to do was use a linux machine with a wireless and wired interface to act as a router. The wireless interface would be the outside and get its IP via DHCP from the wireless my landlord provides. The wired connection would be for my local pcs. I understand it would be slow having multiple pcs using a single wireless gateway.

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Networking :: Multicast With More Than One Network Interface?

Jul 30, 2010

If I have set up 2 network interfaces on a box, if I started sending multicast traffic, it will go out through both interfaces? Or is there a way to control through which interface it will go out?

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Networking :: Packet Redirecting To Another Interface Of The Box

Nov 19, 2010

I have to interfaces eth0(10.0.0.7) and wlan1(10.0.0.8) in my box. An application is listening (say, udp socket) at 10.0.0.7:5888.

Now if someone sends packet at 10.0.0.8:5888, I want to forward them to 10.0.0.7:5888.

I have tried this - iptables -t nat -A PREROUTING -p udp --dport 5888 -d 10.0.0.8 -j DNAT --to-destination 10.0.0.7

But Packets(with destination addr 10.0.0.8) are not received by the application (But they are received by the box, I have checked using wireshark). I have also enabled ip_forwarding.

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Networking :: Route Add With Specific Interface?

Apr 18, 2009

I have an Asterisk-server with 2 interfaces, a WAN-interface (eth1) and a LAN-interface (eth0).

SETUP : IAX-provider(internet) --> firewall --> Asterisk-server --> switch --> clients_on_LAN

So everything coming from the IAX-provider on port 4569 is forwarded to the Asterisk-server's WAN-interface (eth1). This needs then be routed to an internal SIP-phone (an IVR-system will define which one) via eth0. When a call is initiated from an internal SIP-phone (they register to the IP-address assigned to eth0) it needs to be routed via eth1 to the gateway (192.168.4.250). Asterisk will setup an IAX-channel on WAN-interface (eth1) to the IAX-provider (via gateway). So... will this work :

Code:

route add -net ip_IAXprovider netmask 255.255.255.0 gw 192.168.4.250 dev eth1

Code:

route add -net 192.168.4.0 netmask 255.255.255.0 dev eth0 (no gateway needed for the LAN-interface, communications to the gateway need to go via the WAN-interface !)

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Networking :: Second Interface Doesn't Work?

Jul 3, 2010

I have two simultaneous active mobile connections through my two mobile phones and USB data cables. Yet I can only send/receive with one connection.

Each of the phone modems have a node in /dev, namely ttyACM0 and ttyACM0. So the modems are detected correctly. After setting up two dial-up connections with the two modems I have two ip's. Ifconfig-a confirms this:

ppp0 Link encap:Point-to-Point Protocol
inet addr:10.10.219.60 P-t-P:10.6.6.6 Mask:255.255.255.255
UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1500 Metric:1
RX packets:15209 errors:0 dropped:0 overruns:0 frame:0

[Code]....

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Networking :: Traffic Counting On The Interface?

Jan 16, 2010

How do you count the traffic on the interface, friends ?

I have a router for a medium-size LAN. HTTP-traffic goes through the transparent proxy, logs are parsed with Sarg, so that's the way I look how much megabytes my users 'do' daily.

Now I want to get rid of proxy, just to do sNAT. But I still want to know the daily traffic of my users (even in general, not for each user).

The router is run by Slackware 12.2.

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