General :: Default Gateway Does Not Allow To Get Connected To The Internet?
Jan 20, 2011
i have a leased line ( speed 2 MB ) which we use to connect to our mail server , oracle ERP etc.. we have a dhcp scope defined as 192.168.100.1-192.168.101.254. with a default gateway as 192.168.100.90 ( which is a cisco router ) we have a pix firewall ( 192.168.100.10 ).. now the gateway passed all the request to firewall..we have an ADSL of 4 MB speed.. ip is 83.*.*.230 from ISP. i have a proxy server ( squid ) eth0 is connected to ISP (83.*.*.230).. eth1 to LAN ( 192.168.100.79 ) now the problem is when i put default gateway to eth1 ie 192.168.100.90 the squid connects to internet via leased line.. if i leave the default gateway field empty on eth1 , the squid connects to internet via ADSL ( which i want ) but the problem is no one on the lan cant ping the squid server ( no connectivity to internet for the whole LAN ) how can i solve this problem? PS : i want squid to connect to internet with ADSL, but if i put gateway on eth1 ie LAN squid goes through leased line which i dont want to happen
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Jun 28, 2010
I'm having some difficulty with a internet/vpn setup. I have 3 network adapters on the server. 1x is used to connect it to the rest of the network 1x is used to provide internet (squid,dansguardian) 1x is used to connect to the vpn router
My interfaces file looks like this:
Code:
# 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
[Code]...
The problem that I have is this: When the gateway on eth2 is set to 10.0.2.2 the VPN works 100% but there is no internet. When the gateway on eth2 is set to 192.168.0.6 there is internet but no VPN.
So what I want to do is, route all traffic that is supposed to go to 10.0.2.0/24 and 10.0.3.0/24 to eth2 and all internet traffic to eth0.
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Jul 11, 2009
I have installed eeebuntu NBR on my laptop and it looks great on a 17 inch widescreen. It looks so different from the usual interface that I get people ask about it and I can evangalise without being considered a boring weirdo! Anyway, I have one problem. Every time I boot I have to run the following command.
Code: sudo /sbin/route add default gateway 192.168.0.1
How do I get this to happen automatically (as it normally does)?
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Aug 10, 2010
Getting the following error when trying to add a default gateway for eth1.
# route add default gw 192.168.228.2 eth1
route: SIOCADDRT: Network is unreachable
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Jun 18, 2010
in fedora/redhat system I want to add IP address along with Default Gateway and DNS.For assigning IP to eth0 i use the command # ifconfig etho 192.168.1.10 subnet mask 255.255.255.0 upthis remain temporary and when I restart my system it lost the IP address. Well to permanently add IP address in etho I use the file #cd /etc/sysconfig/network-scripts and then use # vi ifcg-eth0 to add IP address and Network Mask. How can I add Default Gateway and DNS permanently in ifcg-eth0 file or there is any other file for it ?
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Aug 9, 2011
I have a CentOS running. It is important to have my CentOS available when I am remotely connected to a VPN router. I tried to add a default gateway to the VPN router, but after reboot it goes away. How can i put this as permanent?
ip route add 192.168.2.3 via 10.0.0.1 dev eth0
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Aug 21, 2010
I want to set a up a network of inter connected pcs, for example on pc A linux is installed.now pcs B, C , D, etc should connect to A and do there work, for example A want to do C/C++, development, whereas B wants to do some PERL development or whatever, this is just an example, 2 different pc users might do same work also, and the connecting pcs may have Windows or linux or bsd.OSes now what h/w or s/w is required and what steps are required to set up this network, main pc would be connected to internet and also connected pcs might want to use internet also..have installed opensuse edulife , and use this as PC A for testing.. and I use bridged dsl Broadband connection to connect to internet , by the username and password provided by the ISP, in windows its easy to setup this connection, however not able to do on linux,
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Jul 2, 2009
I haven't worked with linux before, I am a network administrator, mostly working with cisco routers and windows 2003 server configured with ISA, I want to shift to linux, since its a free OS, offers more than windows 2003 server, and I have the time and resources to test it at my work place, I want to give it a try. Now ... this is what I want:
I want to use Linux OS (server or desktop editions) as Internet Gateway, I have less than 50 hosts (internet users) on my network, and I simply want to know what is the most convenient linuxs distro for me to work with as a beginner to install, configure and administrating a linux OS(working as an Internet Gateway).
Its a simple network, 50 users connected to a switch, the switch to a server (where I will run the linux OS), the server to a cisco router, the router to the internet line. (Any tips on what do I need to be able to configure firewall rules and user activity monitoring like I am used to do with ISA on windows server 2003).
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Dec 17, 2010
I am using Fedora 14 with a Gateway tower w/HD screen connected, obviously, with an HDMI cable. It works just fine, except for when I play some stuff online. It's only some stuff, not all. So I was just gonna ask if it has anything to do with the quality of the video. If the video isn't HD, will the sound come out worse on my computer?
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Sep 27, 2010
In one of our network we are using one firewall which works as gateway. All machines are able to access internet through this gateway. There is no filtering and any internet restriction. I would like to setup monitoring system which monitor and log bandwidth and sites access by client machine. Is there any tool which monitor internet access as well as sites which are access from client machines.
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Aug 4, 2009
I am running Xubuntu 9.04, with LXDE on an old Acer 526iTX. After fiddling around trying to connect it to a Vista machine using a crossover cable, I must have broken the internet (well not the whole internet obviously, just my connection). nm-applet will show the connection as working, but no loading takes place (eg. firefox shows 'connecting to google.com.au..' but nothing happens). Same behaviour whether browsing, pinging or updating by CLI, and over any type of connection (mobile broadband, wifi or ethernet cable). This has persisted over many days, through restarts and deleting and re-creating the connection in nm-applet. I can also rule out a hardware problem as the connections work fine using a live CD.It's no big deal if I have to reinstall (I probably will anyway), but I was wandering if anyone would know the probable cause of this behaviour.
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May 23, 2010
I am a new user to fedora 12.I am using reliance wireless broadband for internet.i have installed the drivers and did a wvdialconf and wvdial. The output of the wvdial was:
Code:
[root@gnanam gnanam]# wvdial
--> WvDial: Internet dialer version 1.60
[code]...
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Mar 29, 2011
I am facing a problem to configure pine. My machine has no global IP, but it is in a LAN. The LAN is connecetd in Internet. The global IP, through which the Internet traffic of the LAN is passed, is known. How can I configure pine to send/receive mail?
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Feb 25, 2011
I have installed the 3 packages required for MTS Mblaze 3G Modem to get connected to the internet.
Quote:
1. usb_modeswitch
2. usb_modeswitch-data
3. wvdial
Here is the "/etc/wvdial.conf" file that gets generated when I do the "wvdialconf"
Code:
[Dialer Defaults]
Init1 = ATZ
Init2 = ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
Stupid Mode = yes
[code]...
But now when I open Mozilla or Google Chrome Internet Browsers, I am not able to connect. Moreover, I also tried to ping to [URL] but it is not pinging.Is it related to some Network Manager settings. As when I look at the Network Connection Icon, it shows CROSS i.e. not connected to any network...
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Jun 14, 2011
trying to get linux in the road so I install Ubuntu Desktop on Microsoft Virtual PC 2007. The installation went fine. Now how do I get this installation connected to the internet? The trouble I'm getting right now is that the I can't access the Internet when I fire up the browser.
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May 28, 2010
I want to set default gateway permanently. There are two files and both have keyword "gateway":
Code:
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Feb 3, 2011
This is slackware 12. I'm trying to share my internet connection (on eth0) with a computer connected to eth1.
eth0 is 192.168.0.101, eth1 is 192.168.1.100 (different subnets).
But when I try to make eth1's default gateway the same as eth0's, see the error I get code...
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Jan 8, 2010
I am in a big confusion and searching an answer to calm down my mind.I have my eth0 has following configuration
` ` `
IP 192.168.1.100
mask 255.255.255.0
[code]....
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May 1, 2011
I seem to have is trying to get the internet to work. I can go to ..... ect but when I try to run playonlinux it says you do not seem to be connected to the internet, please post if you have anything useful, as I said I am very new to linux so be as detailed as possible.
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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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Feb 23, 2010
I have installed ubuntu 9.04 Jaunty server from disk. I am connect to my corporate internet. I have put in my http_proxy everywhere I can find to put it. I am getting an ipaddress, gateway, broadcast,etc. My wired is connected. When I try to ping my default gateway it times out. %100 packet loss. I get the ipaddress of the gateway from the (route command).
My configurations on /etc/network/interfaces is correct(I am on another computer so I can't copy and paste) and I even tried updating the drivers for NIC card. I am using a Intel 82567LM-3. I have been working on this longer than I care to admit.
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May 4, 2011
Im trying to achieve the multiple uplinks/provider found on LARTC.org. I have to get the IP addresses from my interfaces (EF1 and EF2) by using a script, but i dont know where to look at for the default gateway from each interface which got their ip address from my ISP.
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Apr 11, 2010
I have a computer with two interfaces: a fixed connection (eth1) and a modem (ppp0). My goal is to receive UDP packets from both connections concurrently (using the recv() function). The problem is, that the received packets reach the application only when the default gateway is set to that interface's address. For example, if I set the default gw to be in the eth1 subnet, only packets from eth1 reach the application. Other packets are received in the interface (checked using tcpdump), but they seem to be blocked somewhere. The policy defined in iptables is "ACCEPT" for all incoming packets, with no rules at all. I would like to know how to overcome this problem, and anyway how is the default gateway related to incoming UDP?
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Nov 11, 2010
I have a dual-homed Debian server running squid, but not acting as a router. Simplied network diagram is below - there are other local hops between the gateways and the Internet.
Code:
(eth0 @ 192.168.44.2) <--> (Gateway1 @ 192.168.44.1) <--> Internet
(eth1 @ 192.168.55.2) <--> (Gateway2 @ 192.168.55.1) <--> Internet
Using Gateway1 gives a very fast, but not always reliable route to the Internet. Using Gateway2 gives a slower, but more reliable route to the Internet. The server uses Gateway1 as the default gateway.
I have written a script that pings three hosts on the Internet, and if all three are down, switches the default gateway to Gateway2. This part seems to be easy, but I'd like know if there is a way of routing a ICMP/ping out eth0 to a host, with all other traffic to the host going out eth1, so I can determine if the Internet is reachable via Gateway1 again.
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Apr 7, 2010
I am realtively new to BGP. I use BGP in my network to advertise my /20 subnet. What i would like to know is what is the point of accepting routes from your neighbouring AS(ISP)?My ISP has given me a default gateway, and no matter what I want to reach on the internet I have to go through that default gateway, so why populate the routing table with soo many routes?also, as i understand it, there are 3 kinds of routes that you can accept, those are full routes, directly connected routes and default routes. What is the diffrence between them and again how do they affect routing since my network only has the one default gateway?
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Jul 14, 2010
after a reboot of my Lenny system, the default gateway will lost. Then i must try "networking restart" and the gatway will be set
my interfaces looks :
# 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
[Code].....
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Jan 30, 2011
I had a router crap out yesterday. I'd been testing out a new one for the last few days and just reconfigured it to be the main. Took the old one down and everything in my house (Windows 7 PC, XP Files server, Ubuntu PC , windows 7 laptop, android tablet, ps3, etc) seems to be working fine whether it be hard wired or wifi. All except my ubuntu 10.04 laptop. It worked fine before the swap so I can't figure out what's going on.
I'm able to connect to the new SSID without issue but I can't resolve any external names and when I try to ping the default gate way every other packet has (DUP!) behind it. If I'm hardwired I don't get the dup! when pinging the default gateway but I still can't resolve any external names. I have provided the results of an ifconfig and the results of a ping to the default gateway below.
cooley@Quigon:~$ ping 192.168.1.1
PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data.
64 bytes from 192.168.1.1: icmp_seq=1 ttl=64 time=2.98 ms
64 bytes from 192.168.1.1: icmp_seq=1 ttl=64 time=3.04 ms (DUP!)
64 bytes from 192.168.1.1: icmp_seq=2 ttl=64 time=3.50 ms
64 bytes from 192.168.1.1: icmp_seq=2 ttl=64 time=5.72 ms (DUP!)
64 bytes from 192.168.1.1: icmp_seq=3 ttl=64 time=8.09 ms
[Code]...
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Jul 2, 2010
I posted it on another forum, but could not get response,So I have this cenOS, Ubuntu and windows operating system running on virtual machines.Now I gave them manual ip address, both ubuntu and windows machines can ping the default gateway, but not the CentOS.It should forward 0.0.0.0. to my cisco router address(192.168.5.254),
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Feb 21, 2011
I'm looking for a method to assign a default gateway via dhcp randomly depending on ether the last char of the mac being odd or even, or the time the user connects. Is there a good reliable way to achieve this?
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Jun 16, 2011
I have installed dhcp-server on ubuntu. And server is providing ip address to clients (Window machines) but not default-gateway but I have another network in my network and same configuration and same dhcp-server provides every information.
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