Networking :: How To Define Gateway On Network Card
Jul 13, 2009
I have two network card in my computer.
1. eth0 is set to automatic obtain IP from provider (DHCP)
2. wifi0 is set to static IP (local) 192.168.1.1
My ifcfg-wifi0 is configure in /etc/sysconfig/network-scripts/ifcfg-wifi0 as below
# Atheros Communications, Inc. AR5212 802.11abg NIC
DEVICE=wifi0
ONBOOT=yes
BOOTPROTO=static
IPADDR=192.168.1.1
NETMASK=255.255.255.0
HWADDR=00:17:9A:75:48:37
my /etc/sysconfig/network
NETWORKING=yes
HOSTNAME=pc1.homeserver.in
eth0 IP is connected to broadBand internet service provider device WiMax and IP change time to time from internet service provider. How can I get IP for gateway in /etc/sysconfig/network. I am using Redhat enterprise Linux 4.
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May 18, 2010
Alsamixer is better now since one can press F6 to select the card and tune it. but well, ok, when one has several cards, if you have a mic, alsamixer is not bright and select it as first card, so one resutls into no sounds.OK, alsamixer is nice, but man, how to select a specific card and select it as defautl. Then at reboot, I wish to have sound. Is that possible with Linux or shall we wait a stable version of Debian whcih works, simply ?
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Jan 7, 2009
I have a network gateway system which runs redhat 7 (2.2.16)
Firewall running is ipchains
Internal network is eth0 192.168.5.1
External network is eth1 99.99.99.98 (example add)
My problem when I change the static address of the external network from 99.99.99.99 to 99.99.99.98 I am not able to connect to internet. From my preliminary investigation ip is not binded to network card., but I am not sure, is there a way to check binding accurately
Below is the ifcfg-eth1 file contents
DEVICE="eth1"
USERCTL=no
ONBOOT="yes"
BOOTPROTO="none"
NETMASK="255.255.255.0"
IPADDR="99.99.99.99"
IPXNETNUM_802_2=""
IPXPRIMARY_802_2="no"
IPXACTIVE_802_2="no"
IPXNETNUM_802_3=""
IPXPRIMARY_802_3="no"
IPXACTIVE_802_3="no"
IPXNETNUM_ETHERII=""
IPXPRIMARY_ETHERII="no"
IPXACTIVE_ETHERII="no"
IPXNETNUM_SNAP=""
IPXPRIMARY_SNAP="no"
IPXACTIVE_SNAP="no"
I have updated the address change in ipchains firewall scripts. Before IP change network was work fine with this firewall scripts.
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Mar 23, 2011
My workstation is on a network, let's say 10.100.0.0/24. I'm opening up an openVPN Tunnel to a test environment in my company, receiving a lot of routes to this network (address range 172.xx.yy.0). Everything is working fine so far. In this test environment I placed a number of virtual systems having their own private network (10.99.0.0/24). I have one machine in this virtual cluster which is able to forward incoming IP traffic to the others.
When I login to this gateway system, using the 172.xx.yy.zz address, I can logon to the others using the 10.99.aa.bb addresses. Fine so far. But I have to be able to call these machines with the 10.99.0.0/24 addresses from my laptop. So I tried to add a route like:
route add -net 10.99.0.0 netmask 255.255.255.0 gw 172.xx.yy.zz
Unfortunately I received an error messages:
SIOCADDRT: No such process
According to the entries in other forum articles (Google helps in most cases), I have to add a host route first:
route add -host 172.xx.yy.zz gw 172.well.defined.dest
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Feb 12, 2010
When a second network adapter is fitted, the boot script fails to configure the default gateway. Here's from /var/log/messages with DEBUG_ETH_UP="yes" configured for the boot script Code: Feb 13 10:22:23 ps1 logger: /etc/rc.d/rc.inet1: /sbin/route add default gw 191.168.1.1 metric 1 Feb 13 10:22:23 ps1 logger: SIOCADDRT: No such process
After boot the same command failed with the same message when done by root logged in via ssh but succeeded when run from the console After removing the second network adapter, the boot script is able to configure the gateway.
EDIT: or not. The problem now seems intermittent Now with only the onboard network adapter the same "SIOCADDRT: No such process" error is logged during boot and the "/sbin/route add default gw 191.168.1.1" command fails at the console too. Am experimenting with disabling the onboard adapter and fitting the NIC.
EDIT 2: definitely intermittent. Just rebooted with no hardware changes; same error during boot and route -n showed no default gateway but "/sbin/route add default gw 191.168.1.1" worked.
[Code]....
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Jun 24, 2009
7.2 Home Network Gateway. Has anyone used this gateway and will it support both desktop and laptop I ask this question because I use my desktop at home and when traveling the laptop. The desktop has Fedora and the laptop has cut my tounge out vista.
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Oct 21, 2010
I've been struggeling with this for a few hours now, googleing and so on trying to find an easy way to just switch which device I want as primary for internet connections. After long battles I'm at a loss, this is the current automatic routing
Code:
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
85.225.76.0 0.0.0.0 255.255.252.0 U 1 0 0 eth0
85.225.76.0 0.0.0.0 255.255.252.0 U 2 0 0 wlan0
[Code]...
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Dec 16, 2010
I have a laptop running OpenSuSE 11.2. I use the Yast menu to set up network settings via "traditional" ifconfig setup (not NetworkManager), because I found NM unusable in prior releases when doing network gymnastics such as router re-flashing, LAN reconfiguration, etc. where I needed control of the IP address, netmask, DHCP, tftp, etc. My laptop works fine with Yast "traditional" ifconfig configuration for eth0 connected to router to Internet. Works fine with Yast ifconfig configuration for USB WiFi as wlan1 to WiFi router to Internet. Also works fine for virtual machines on vmnets NAT-ed to the Internet. Works fine as long as there is only one network connection, that is.
Now, I have a second laptop. I want to network laptop #2 eth0 to laptop #1 eth0 for file transfer and/or Internet access WHILE laptop #1 is is linked to the Internet through wlan1. Unfortunately, I have not figured out how to get Yast/Network Configuration to do that. I have not been able to get Yast/Network Configuration to see both wlan1 and eth0 at the same time--when the Yast utility finishes, I do >ifconfig and >route, and I find that I have lost either eth0 or wlan1. Thus, when I do direct-connect file transfers, I loose the WiFi Internet connection on both machines.
I suspect that it might have something to do with Yast/Network Configuration utility not being able to handle two network interfaces on the host with different IP addresses. how to properly put an OpenSuSE machine on two networks simultaneously? And then how to turn on IP forwarding so that I can use laptop #1's WiFi as an Internet gateway for laptop #2?
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Feb 3, 2010
i don't know what this os want from me one moment everything is fine the next it's not first of all it started asking me to choose resolution on startup it said undefined b31 and i have to press enter then 366 for 1024x1280 32 bit how can i fix this problem how can i define 366 resoultion as default and how can i update the screen card driver for 10.1 i have ati hd 3650 agp card. and by the way what are the cool things i can do with graphics here except the rottaing windows.
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Mar 2, 2010
I installed Redhat linux 5 on my laptop .. after installation i the OS did not detect the network driver ... i downloaded the driver of that NIC but i dont how to install it
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Apr 3, 2010
I installed the driver for my network card. iwconfig and ifconfig are all responsive to connecting to the network, I'm given an access point address. Then, I try to connect to a website and no dice. ping www.google.com yields no result. What gives?
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May 25, 2010
Cannot activate network device eth0!"device eth0 does not seem to be present, delaying initialization".i cannot find my network card while i set up network configuration Now I use dual boot window 7 and fedora 9,I cannot find my network card in select network adapter while network configuration ,i have a network card Atheros AR8132 PCI-E fast Ethernet controller NDIS(620)and for wired in Accer laptop .
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Jul 12, 2010
my wireless home network is not recognized by my network card (RealTek RTL8190 mini PCI). The post was as follows: "I am using a new computer with Windows 7 , Athlon quad core 2.60 64 bit, 8GB RAM. Internet conection works fine with ethernet but ubuntu does not see my wireless network. card (RealTek RTL 8190 ID: 10ec:8190). Have searched this forum but unable to come up with a fix. I was looking for windows XP drivers to use Ndiswrapper but could not find a list of .inf files. My network is OK and works perfectly in windows and with my 2 laptops. Can anyone point me in the right direction? Additional info: install was done within Windows using WUBI to a separate partition on my HDD. I am new to this and thouroughly confused as to the procedure for installing the drivers if they are in fact available."
I am very frustrated in that I would like to use Ubuntu 10.04 but it is useless without internet connectability. I am new to linux and do not understand where to get the appropriate drivers or how to install them. I wish someone would answer this post and either give me a clue what to do or just say "give up" and uninstall ubunutu.
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Feb 26, 2010
I have openSUSE 11.2 installed and i need to create a gateway server that allows virtual private network connections. I want to play with my friends some lan games, but we are in different networks, so i want to create this gateway server so we can connect with VPN clients to this server and play freely.
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Mar 31, 2011
is it possible to set up a "gateway" with just one network interface? Basically, I have a cable wireless router which is connected to the internet. I want to have my network use a transparent proxy, however, the transparent proxy is on an ARM computer with only one network interface. So the proxy will act as the "gateway", which then forwards all external request to the Cable modem.
[Code]...
Now, I need the cable modem to be in the same network, because I want to use it's wireless access point... Do I need to have two subnets? one between the Cable modem and the proxy, and then a second subnet as a virtual interface on the proxy to communicate with all the computers?
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Jul 17, 2011
I installed openSUSE on one of my work system. The network port wasn't working when I was installing, but works fine now (checked in Windows). But for some reason, I am not able to configure the network. I used both Dynamic and Static IPs (both work fine in Windows) but still no go. I am using Yast Control Center for this purpose. I can't even ping the default gateway when I am using custom settings. When I use dynamic settings, it says Unreachable Network.
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Jan 29, 2011
I have a Broadcom Corporation NetXtreme BCM5721 network card on my server at work.Everything works fine for a few weeks, then randomly the network connection on the server will stop working. After it stops working, I will try to reconnect with the network manager, it shows a wired connection available, it shows the "connection in progress"animation, then the "connection disabled" icon.
I uninstalled the network manager and used manual configuration, but do you think the network manager was the issue? I can't have the server disconnecting randomly every few weeks with no way to know what the real problem is. Was there an issue with the network manager with 10.04?
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Jul 15, 2010
Why trying to avoid ranting about my Linksys router, I'll try and keep things short. I have a Linksys router in which the default firmware was terrible and would not correctly renew its DHCP lease. After getting feed up with that I flashed dd-wrt on the router and now it works better but randomly DNS queries would stop being resolved. To rule out the chances that it is my ISPs DNS servers I switched my DNS to openDNS, same problem happens (although I have to admit openDNS is a lot better than what my ISP has).
Anyways I'm about feed up with it and about an inch away from drop kicking the thing out my window. To avoid that I figured I will give it one more change and instead of using my Linksys as my network gateway I'll move all of that to my home server, and make the Linksys just an wireless AP. Besides setting up DHCP, DNS, and iptables on the server is there anything else I will need to know and setup on the server to make this work?
Side note anyone using openSUSE for DHCP know if setting up reserved IPs for certain MAC address is possible?
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Feb 1, 2011
we have several servers working on 172.15.2.X series .Our mail server ip is 172.15.2.4 & plateform is linux as it is squirrelmail server.other server which have the same series of ip are working on win2k3 plateform.however I try to recognise this problem by iptraf tool but can't get positive result.
Sometime the ip of all 172.15.2.X series could not ping from outside and LAN as well .
We has been temporarily resolving this problem by
1 changing gateway on all servers as well on firewall.
OR
2 change the ethernet card on mail server and configure same ip on new one .however we have only two NIC card on mail server .The problem resolved temporarily for one OR two hour after it same problem on that card also.than again we have to do same step on switching on another NIC card and reconfigure IP and do down first one.
OR
Take shut down for few time the mail server. But by these all above are not permanent solution BKZ After few hours mailserver starts blocking the gateway again. Than we want to know that what issue can be with this server
1 Are we need to configure VLAN?
2 Is that hardware problem?
3 Is this traffic overflow problem whcih is chocking the gateway of whole network machine having same gateway?
I am sending the few attachment to you please revert ASAP.But keep in mind one thing that attached document indicate the good running mailserver configuration.may be you could not found any problem in this conf.
In order to resolving this problem I have tried by changing duplex mode to
1 > 1000 MB/ps full duplex utonegotiation off
&
2 > 1000 MB/ps full duplex autonegotiation on
but can' get positive Result. I have also tried by IPbinding but it was useless. I think some thing wrong is happening in mailserver which make gateway chocked and 172 series server got also affected by this because they could not get path of gateway as it got choked by mail server's over broadcasting .Although I have make ready the old mailserver it is working but it is cabinet server & not reliable so please suggest for that problem.
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Dec 18, 2010
How can I define some users as ssh user( ssh to linux remotely ) and the others not ( do not ssh)?
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Jun 9, 2011
i have run a ftp server with vsftpd. i set a public ip address on my server . but i want to define a name for this ip address (for example ftp.test.com) how can i do that?
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Apr 12, 2011
i was installed two ubuntu(1,2) via wmware on my laptop(win=7) on one of them run dhcpserver (ubuntu-1) and i am going to run the other one dhcp client(ubuntu-2) but on the one NIC that belong to my laptop how to config dhcp client (ununtu-2) get ip adres fom dhcserver(ubuntu 1)
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Dec 25, 2008
in my iptables script I define the environment like this:
Code:
# ENVIRONMENT
# Private interface
IF_PRV=eth1
[code].....
if I give the IF_PUB interface the DYNAMIC IPaddress assigned by my ISP how can I define it in IP_PUB and also the NET_PUB so I can then use it for the firewall rules.
exemple rule:
Quote:
iptables -t nat -A POSTROUTING -s $NET_PRV -o $IF_PUB -j SNAT --to $IP_PUB
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Apr 1, 2010
I'm trying to define a new qeth networking device on a zLinux system. I'm following the Red Had instructions and I can see my hardware is correctly defined but not online. Addresses fc00, fc01 and fc02 are my qeth device but they are not yet online.
[root@lxp10004 /]# lscss | grep 1732
0.0.FB04 0.0.0000 1732/01 1731/01 yes 80 80 FF 04000000 00000000
0.0.FB05 0.0.0001 1732/01 1731/01 yes 80 80 FF 04000000 00000000
0.0.FB06 0.0.0002 1732/01 1731/01 yes 80 80 FF 04000000 00000000
0.0.FC00 0.0.0021 1732/05 1731/05 80 80 FF 19000000 00000000
[Code].....
I did this on one zLinux system yesterday and got the same results and after doing it a bunch of times it finally took the command. Doing it on a second system today and don't seem to be able to issue the command without errors.
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Apr 3, 2011
I'm using a Gateway LT3103u running a dual boot of Win 7 and Ubuntu 10.10 (separate partitions) and ever since I've started using Ubuntu (last October) I've had persistent graphic card problems.
My graphics card is the ATI Radeon X1270.
Right now I can't use any visual effects because of I do the screen spazzes out and becomes unusable. This isn't a big deal for me since I don't use them but I figured it's relevant to the problem.
Even with visual effects off I still have problems and at times parts of the menu will stay on the screen in a little box which covers any windows that open beneath it. The only way to get rid of it is to turn visual effects on so the screen resets then hit use previous settings.
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May 14, 2010
I just want know, how two network card in one PC working on fedora. I want try setup router + firewall on my PC. And i need tutorial how is working
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Aug 27, 2010
I added to my machine PC running debian and others, ubuntu, pc wireless card:,the same card I used it on other machine, it ran nice.On the other machine i have Ethernet Controller instead of Class ffff.I installed the divers firmware-ralink and other realtek and network-manager, but nothing.on other machine, that was enough to run it correctly.and ifconfig dosn't give wlan0,iwconfig did't give characteristic of wlan0.does this mean that the bios didn't recognize it as a network card
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Apr 9, 2011
got a new MoBo today. dropped it in and powered it up to find no network connection. when I dig though network manager I find no network devices, same with "network configuration" lspci gives:
03:00.0 Ethernet contoller [0200]: Atheros Communication Device [1969:1083] (rev c0)
ifconfig gives just the "lo" device. is there a hardware detection step I'm missing? I should mention this is a swap of one onboard NIC for another.
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Apr 4, 2010
I have bought a new laptop with W7 installed. And I installed dual boot with Ubuntu 9.10 on it.I tried to connect my laptop to Internet by Ethernet port. It works with W7, but Ubuntu doesn't detect my Network card .After some research on Internet, I suppose that it's a problem of drivers for this card.Here some parameters I could get :
>ifconfig :
lo Link encap:Boucle locale
inet adr:127.0.0.1 Masque:255.0.0.0
[code]...
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Apr 17, 2010
I've switched to a new motherboard, an Asus P6T SE one, and now I don't have any cable connections in Networkmanager anymore.
I see the new card when I run "ifconfig", it's called "eth2", but I have no idea where to go from here without messing up networkmanager.
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