Networking :: Routing Table Is Read From The Wrong Eth?
Aug 26, 2010
eth1 which is connected to interneteth2 internal networkbecause the server is part of a complicate network i need to setup the routing tables for eth1 and eth2but i need that the default 0.0.0.0 must be read from eth1 while i dont know why the server first read the one on eth2. this creates big problem to me.if i add the default route to eth1 i get an error saying that the default route already exist (i suppose is the one on eth2)how i can solve this ? i must create a script that first delete the default from eth2 and after add it to eth1
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Apr 6, 2010
I have a firewall, this consists of three NIC's:
Code: eth0[192.168.0.2] eth1[192.168.1.2] and eth2[10.10.165.2]
I am trying to ping eth0 from eth2, but I am not able to succesfully get a response from pinging the device, I am using:
Code: ping 192.168.0.2 -I eth2
I have tried to insert routing data into the routing table, but it still doesn't work
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Apr 5, 2010
After making an changes (add/modify/delete) to /etc/static.routes, what command should we use to reload the routing table?
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May 18, 2009
routing tables using "ip route 2" I have a server(server1 from now on) with eth0(internet connection) and eth1(lan connection). eth1 have 2 more alias devices = eth1:1 and eth1:2 On my server 1 the eth0=public ip, on eth1=192.168.10.1/24, eth1:1=192.168.20.1/24 and eth1:2=192.168.30.1/24 server1 is running squid and iptables to all 3 networks (eth1, eth1:1 and eth1:2) All of the clients have access to internet. Now what i want to do is add 3 more networks via a router(linuxBox = server2 from now on) connected to server1 in eth1. so the network will be like this:
Code:
server1
eth0=internet
eth1=192.168.10.1/24 (connected to server2 and other clients)
[code]...
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Mar 1, 2010
A packet is sent from the computer to the router it's connected with only the destination address in it, right? So - what does "kernel routing table" mean?
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Nov 29, 2010
I have to connect my private adres 10.0.0.2/26 to an external adres 192.168.1.253/16
I am not allowed to use Nat so i have to create a static routing table..
Ive put a router between with 2 nic's:
Ive seen on various sites that :
Should do the trick but it isnt working for me ... Ipforwarding is enabled.. Also when i use the sys/proc command..
How to make the table? I am using Opensuse 11.2
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May 16, 2010
Is there any way to restore back the default ip routing table? For example, my current routing table is something like
Code:
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
109.123.95.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth0
0.0.0.0 109.123.95.1 0.0.0.0 UG 0 0 0 eth0
Then i connect to a vpn service and the routing table get's changed..now when i close it, it doesn't reset back to my default routing table.
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Apr 24, 2016
After a long time that I didn't touch my PC I just forgot how to configure the routing table I trying to ping the router and get "destination host untraceable" I manually assign the ip of the machine to 192.168.1.2 .And the gateway ip to 192.168.1.1 the only problem now
Is to get to the router interface on 192.168.1.1 to configure my internet and to browse
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Aug 5, 2010
My routing table does not get complete for some reason. I'm using a Huawei E220 USB modem on openSUSE 11.3 using NetworkManager to connect.When I connect to the net the routing table looks like
Code:
/home/freefox # route
Kernel IP routing table
[code]....
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Jul 25, 2010
I have an Ubuntu 9.10 server installation which have been working flawlessly for some months. The server runs bridged networking, because of some VMs that runs on it. But, a couple of weeks ago the network connectivity have started to disappear now and then (usually once a day or so). Running "sudo /etc/init.d/networking restart" always kicks it back to life.
After a bit of debugging I noticed that when OK the routing table looked like this:
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.1.0 * 255.255.255.0 U 0 0 0 br0
192.168.122.0 * 255.255.255.0 U 0 0 0 virbr0
default 192.168.1.1 0.0.0.0 UG 100 0 0 br0
While when in the non-working state it looked like this:
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.1.0 * 255.255.255.0 U 0 0 0 br0
192.168.1.0 * 255.255.255.0 U 0 0 0 eth0
192.168.122.0 * 255.255.255.0 U 0 0 0 virbr0
default 192.168.1.1 0.0.0.0 UG 100 0 0 eth0
default 192.168.1.1 0.0.0.0 UG 100 0 0 br0
Deleting the two routes to eth0 restores the networking again. Why these "erronous" routes gets added, and what adds them? How to further debug this?
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Dec 10, 2010
When I try wget URL... I get failed: connection timed out.I have created br0 as a bridge over eth0 to run this VM. The host has this IP 172.30.8.135.The host has access to internet through eth0 and this is the output of route inside the host.
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Apr 28, 2011
First, I installed CentOS 5.5 and Quagga 0.99.17.
Then I configure to run OSPF v2 on R1 and R2 following below:
I added --> #echo "1" > /proc/sys/net/ipv4/ip_forward to forward packet on centos
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Feb 15, 2010
What exactly does gateway in a route refer to? I know what a default gateway is- it's the route of last resort. But used in context of a host route (with destination specified), what is a gateway and why is it important?
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Oct 23, 2010
i used to have ubuntu 9.i decided to move to sabayon so i used the live cd to install it ,resize the ubuntu partition and use the remaining space for sabayon.while the resizing procedure i got an error(i dont have a copy of the error log file but i know it has something to do with an anaconda process).i aborted the installation and the result was an filesystem that couldnt be mounted.when i try to mount the hdd i get this:
Code: Error mounting: mount: wrong fs type, bad option, bad superblock on /dev/sdb1,
missing codepage or helper program, or other error
In some cases useful info is found in syslog - try
dmesg | tail or so and this is what i get from fsck: Code: $ sudo fsck -f /dev/sdb1
code....
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Dec 19, 2010
On my old centos 5.2 installation, yesterday my system stopped. The only daemon working was the ping. Every other were not working ( http, svnserver, vncserver, ssh ... ) but yesterday morning everything worked fine! Since the system is headless, I rebooted the computer this morning. Then it never came back. I placed a screen on the computer and when the computer boots, I can see : loading grub stage 2 then I have a black screen with grub>
There is something wrong ... I'm sad because I moved in my new house and did not took the time to restart my backups ( in fact, I did not found the AC adapter for the external drive ) ... I downloaded the brand new centos 5.5 installation DVD and when I try to upgrade my system the installer tells me that the partition on 1 hd is not readable. Then I ignore the message but before getting to the partition manager, it tells me that the partition table for the lvm 00 ( /home ) can not be found and I have to reboot. Since this hard disk is the biggest ( 1tb ) and all of my data is on this one, I'd like to know what I can do to recover this data ?
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May 27, 2010
I have installed the fedora 13 x86_64 live cd. I updated fedora as well as installing gparted.y hard disc containing my operating systems is not being read by gparted.unalloacted partition table. Also i am not able to mount a ntfs parition on the same hard disc.I did create the partition table on all hard discs with gparted livAnybody else had this problem? A kernel crash is also reported.DIT:I booted ubuntu 10.04 and opened gparted v5.1 without any problem. I booted fedora 13 again and now gparted 5.2
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May 1, 2010
I'm trying to install Ubuntu Linux 10.04 on my computer with following specs:
ASUS P5KR Mobo
HIS 2600XT GFX
160 GB Hitachi Harddisk (SATA)
500 GB Hitachi Harddisk (SATA) - Only for Data.
The 160 GB Harddisk is currently split into 3 main partitions: i) 200 MB created by Win7 setup.
1) Windows 7
2) Leopard OSX
3) Partition formatted in Leopard as Journal which is empty, meaning I can convert this if I want and onto which I will install Ubuntu.
My problem is that despite booting up fine, installer starting and working fine, it cannot however detect my partition table, it thinks its unallocated.
The funny thing is that I can mount the partitions and view the data but the installer however can't see it.
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Apr 12, 2010
I'm having a slight dilemma on reading data from a text file and outputting it into a table then displaying it. Basically I'm writing a shell script that takes information from text files then outputs the data into a table with 4 headings.he extracting of the data is fine, but creating a table i'm having problems with. I think it is possible to do it using the awk function, but so far i'm having a lot of difficulties.
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Apr 25, 2010
I switched back to Fedora after a long time and wow a lot of things have changed! Fedora 12 is looking amazing and the best part is I could install it on my USB so easily. And then I found I couldnt open any PDF files on Fedora - I tried installing AdobeReader, xpdf and openoffice. All of them are just throwing some file format errors.... <I cant push a screenshot now since i removed the packages>
Initally i thought it might be some version conflict but it turned out I couldnt open any pdf's including docs from 5 years back to docs with embedded media content. I know I havent put any info here. I am looking for a little info on what is needed to get Acrobat/Xpdf working in Fedora 12... And I couldn't get any errors logged so I'd like a little help there if I need to share some debug messages...
that gave these messages [root@localhost Presentations]# evince module-development.mgp.pdf
** (evince:5768): WARNING **: Failed to create dbus proxy for org.gnome.SettingsDaemon: Could not get owner of name 'org.gnome.SettingsDaemon': no such name
Error: May not be a PDF file (continuing anyway)
Error: PDF file is damaged - attempting to reconstruct xref table...
Error: Couldn't find trailer dictionary
Error: Couldn't read xref table
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Feb 3, 2011
So I decided to reinstall my 10.10 to undo the 'encrypted home folder feature.' I know are other ways to undo the encryption, but for various reasons I'd rather just do a quick reinstall and start fresh.Currently, I dual boot linux and windows, each with their respective partitions. There is also a storage partition that is fat32 to swap files between the two OSes. So the partitions are:
[Code]...
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Aug 19, 2011
We purchased a virtual server from GoDaddy (1 month trial) to set up as a proxy for our networks (24 of them). I am having 2 separate issues. The first is I can't configure/install NAT and support is telling me the only way I can is to purchase a dedicated server. Here's the error:
iptables -t nat -A PREROUTING -p tcp --dport 80 -j REDIRECT --to-port 3128 iptables v1.3.5: can't initialize iptables table `nat': Table does not exist (do you need to insmod?) Perhaps iptables or your kernel needs to be upgraded. Here's the fix: [URL] So, what I am hoping to do is configure this by just opening port 3128 directly, and only allowing access from our networks. As a test I did this and allowed only from our office and it did not work. However I can't connect, so I am wondering what I am doing wrong? Here's my squid configuration:
[Code]....
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Jul 6, 2010
I am implementing a simple serial protocol where my ARM9 board, running Linux is communicating to a slave peripheral board. The Master sends a 12 byte data stream and the peripheral board returns status in a 23 byte response. The serial port is opened in raw mode. It works perfectly on 44 reads; however, on the 45 read the data returned from the read() is incorrect. I've framed what's being sent on an oscope and it is correct.The coincidence is that 23 x 44 = 1012. It's as though the receive buffer is 1K and when I go past the boundary I get bad data. The read following the bad one is good again.I've tried flushing the buffer before reading but get the same result.Here's the port initialization code:
Code:
int initport(int fd)
{
[code]...
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Mar 27, 2010
I want to change my sda2 partition to ntfs type. i have installed GParted but it is returning a strange type of error. Here is the error dump file...
[Code]...
WARNING: the kernel failed to re-read the partition table on /dev/sda (Device or resource busy). As a result, it may not reflect all of your changes until after reboot. WARNING: the kernel failed to re-read the partition table on /dev/sda (Device or resource busy). As a result, it may not reflect all of your changes until after reboot.
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Jun 8, 2010
i know exactly what i need to do, im just not familiar enough with command line to do it properly.i have 7 computers.the first 4 are connected to a router via wireless at one end of the house. of the last 3 only 1 will be able to access the router via wireless, so it needs to share it's one wireless connection via ethernet. this computer i'm going to call 'server'server will have two IP'swlan0 192.168.1.6 this connects to the router that has internet access.eth0 i intend to have the following settingsip:192.168.0.1sub: 255.255.0eth0 will connect to a second router, where the cat5 cable goes from the server, into the internet port of the router where i will define the router's static IP:IP: 192.168.0.100sub: 255.255.255.0gateway 192.168.0.1i have then set the router IP for LAN handling as 192.168.27.1 and all ethernet connections will have a 192.168.27.x IP.
so i need to know how to, without a gui application, use the terminal to assign server eth0 a proper IP address, and tell the server to take the connection it has and share it through eth0 to supply internet for the last 2 computers via ethernet.i had it set up in this way with a windows machine being the one that had the wifi access, but i'd rather have it setup for the ubuntu server to do this task. security is imperative for these 3 remaining machines, so just getting 2 more wifi adapters for a connection to the initial router isn't an option.the 2 that connect to server do so through SSH and though server IS connected via wireless it only makes outward connections through
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Sep 6, 2010
My setup is...I have a wireless access point using laptop as a gateway. The AP is also connected to a switch as is the laptop. So the laptop has two interfaces one wireless and one wired. A third device is using the AP to connect to a server on the internet. The AP sends the packets to my laptop where they are dropped. I've been looking for a solution to this problem without success. Basically is there a way for my laptop to forward all packets it sees from a certain IP address to whatever destination address they have?To clarify, my laptop is just the gateway of the AP and none of the packets are addressed to it at all, it just picks them up using a sniffer or similar tool.
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Mar 10, 2011
I have a pc with debian 6 (without GUI) installed on it and want to use it as server at home. It has 2 ethernet nics. Now i want to configure the routing process. Searched internet for a long time found something but couldn't get it work.
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Feb 17, 2010
When setting up an SSH proxy, I know you can configure Firefox to route DNS requests through the proxy. Is this possible from linux directly? I'm trying to use wget through the proxy, including DNS lookups.
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Jun 26, 2010
I have two subnets which I am interested in connecting.
Some basic network details:
Subnet A:
Subnet B:
I am trying to think of any further relevant details, but that seems to be it to me. If I forgot anything, please tell me.
Ok the question. WHAT do I type? (Explicitly!) And WHERE do I type it? In order to reach ubuntu-01.tec.lan, or ubuntu-02.tec.lan from perpetrator.tec.lan or rapine.tec.lan?
I'm interested in using actuall ROUTES. I can already achieve results similair to this with either a NAT firewall, or with VPN.. but that's not what I am interested in.
From what I have found out so far, I should need something like the following:
On Gateway 1B:
Code:
And on Gateway 1A:
Code:
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May 14, 2010
I'm newbie to Wireless. Currently I try to implement EAP-TLS but firstly I need to get the hardware work, allow Access Point to Route from Wireless to Wire (LAN DNS server).
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Apr 22, 2010
I am having some trouble setting up routing on my Ubuntu 9.10 Server. I have the GUI installed with Webmin and OpenVPN Heres the setup :
1 NIC - WAN - eth0 - IP: 146.231.x.x SUBNET: 255.255.252.0
1 NIC - LAN - eth1 - IP: 192.168.1.1 SUBNET: 255.255.255.0
1 NIC - ADSL - eth2 - dynamic
What I need to do is the following.
All users are connected to the LAN.
All requests for IP range "146.231.x.x", and "domain.com" need to be routed from LAN (eth1) to WAN (eth0).
All other internet requests need to be routed to ADSL (eth2).
-> I have the masquerading in the linux firewall working for NAT, but all traffic goes to ADSL (eth2).
-> I am using OPEN-VPN over the ADSL also.
-> DHCP and DNS work fine.
I also need all ports opened with the route (from eth1 to eth0)
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