Software :: Routing On 2 Bonds/xen Bridges Over Two Different Networks?
Feb 9, 2010
I'm trying to setup the following on a red hat 5 HP DL380 server: (2 bonds mapped to 2 xen bridges on 2 different networks)
interfaces bond xen bridge network
eth0ð1 -> bond0 -> xenbr0 -> 172.16.6.0/24
eth2ð3 -> bond1 -> xenbr1 -> 172.16.5.0/24
For IP bonding I want the OS be responsible for configuring the Network Bridges(not xend). So I've commented out any line starting with '(network-script' in the /etc/xen/xend-config.sxp file.
My configuration is as follows:
1) For Bond0:
[root@localhost ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
USERCTL=no
ONBOOT=yes
[Code].....
So the static routes that are configured, do not seem to taking effect.
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May 1, 2011
Im a computer networking student in my 3rd year and most of it has been based on windows, just completed a Unix Systems Administration course at my University and decided to take the skills home with me, but I have a slight problem and Ive been racking my brains out trying to figure it out. I have 2 Networks in my home and im trying to get connectivity between the 2 networks but to no success
[Code]...
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Feb 17, 2011
I have tried using ad-hoc networking in linux machines. My question is that is the routing in ad-hoc network is implemented at kernel level. I just want get my hands on the code that make wireless ad-hoc networking possible.
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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 20, 2010
I have a little problem with my Linux Suse 11.2 Server. I have unused network card with one port, and one with 4 ports and two used ports.
so->
eth1 is connected to a dsl-modem
eth2 is connected to a switch
i want my suse server to route between modem and switch.
Somehow, I can't go in the internet via eth1. I have to create a bridge br0 to go in the internet. very strange, when i delete the bridge and set eth1 as primary device, i have no internet.
How can i route from eth2 (10.x.x.x) to (eth1 or br0 (80.109.145.x) to Modem (80.109.145.1)?
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Jan 7, 2010
Running CentOS 5.4 x64. Have successfully bridged eth2 with br2 by following the instructions here: [URL]../Networking (under the RHEL section) Have been running several KVM VMs successfully via this bridge.
I am now trying to bridge additional interfaces by using the same routine. Each bridge is named to correspond with the ethX device its bridged with.
Example of ifcfg-eth0 script:
DEVICE=eth0
HWADDR=00:16:76:D6:C9:45
ONBOOT=yes
BRIDGE=br0
[Code]...
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Dec 5, 2010
im compiling from source on a old rig i have, its running ubuntu 10.10 server edition and i finaly got all the dependencys installed to a point where ./configure actualy worked. but whne i try and run make this is what i get.
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Apr 16, 2011
I am trying to configure my android phone (rooted Eris running kaossfroyo 2.2) to be used as a midi controller. Which I am having enough trouble with as it is but it has raised an annoying issue that occurred a month ago when I used the phones tethering network with my laptop. After connecting the laptop to the phones network (either tether, or an Ad-hoc network created using the network manager) I am unable to switch to other networks. In other words when I'm done with the phone-laptop connection I cannot connect my laptop to my home network! When I click on the other network connection I can see that it is attempting to connect in the upper right corner of the desktop (the network icon) but it will not make the connection.
What happens is that the network indicator will make the little circle graphic as if it is trying to connect but it never will display the other circle as green indicating that it has connected. but when I disconnect from the home network that is not connecting I will get a message underneath that will say that ad-hoc network disconnected! If I am switching from the android tether it will say Android-Tether disconnected etc. Even though when I click on network manager it shows that I am attempting to connect to the home network (labeled LIBERTY in my case) upon disconnection it shows the ad-hoc or tether connection being disconnected.
I am absolutely baffled by this! The issue persists even after deleting the ad-hoc connection from the wireless settings tab!!! I would speculate that for some reason the laptop is attempting to connect to the previous ad-hoc connection despite me wanting it to connect to LIBERTY. I am very confused and hope someone can lead me in the right direction.
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Jan 7, 2010
I could use Wireless network. I could see several different networks in my range. Then suddenly the network stoppedworking, and I can no longer see any networks under "Wireless networks".The Wired networks works fine.I tried upgrading ubuntu, but nothing changed. Just to confirm, I rebooted the computer in Windows Vista (Dual boot) andconfirmed that Wireless worked fine there. No hardware problem then.The suggestions I have found on this and other forums suggest looking at the output from iwconfig and ifconfig. But since I'm a n00b at Ubuntu I don't know what to make of it.
This is the output:
emil@emils:~$ iwconfig
lo no wireless extensions.
[code]...
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Jan 27, 2016
I have recently upgraded a computer from Wheezy to Jessie, and I'm having trouble getting an internet connection shared via Ethernet by another computer (the provider) to work on it.I have activated the interface of the Jessie computer and configured a static IP on it in the same subnetwork as the provider's ethernet interface with the following commands:
Code: Select all# ip addr add 192.168.123.201/24 dev eth0
# ip link set up dev eth0
I now would like to set the address of the provider as the default route with Code: Select all# ip route add default via 192.168.123.100 dev eth0, but I get the following error message: Code: Select allRTNETLINK answers: File exists.
Indeed, when I run Code: Select all# ip route, the following comes up:
Code: Select alldefault dev eth0 scope link
I've tried to remove this default route to replace it with mine with Code: Select all# ip route flush table main and Code: Select all# ip route del default but these commands don't seem to work.
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Jun 18, 2010
I have a fedora 13 with two Internet links, but I'm having problems in configuring them. In the past 11 fedora works fine, on Redhat, Centos, only fedora 13 and 12 is not working the same configuration posted below:
# File rc.local
ip route add 200.20.150.192 dev eth0 src 200.20.150.194 table 1
ip route add default via 200.20.150.193 table 1
ip route add 192.168.2.0 dev eth3 src 192.168.2.2 table 2
ip route add default via 192.168.2.254 table 2
ip route add 200.20.150.192 dev eth0 src 200.20.150.194
ip route add 192.168.2.0 dev eth3 src 192.168.2.2
ip rule add from 200.20.150.194 table 1
ip rule add from 192.168.2.2 table 2
ip rule add fwmark 1 lookup 1
ip rule add fwmark 2 lookup 2
ip route flush cached
# The route default is to link 1 ( 200.20.150.193 )
# Some configuration basic tested and not work with iptables
iptables -t mangle -A PREROUTING -i eth3 -s 192.168.0.0/24 -j MARK --set-mark 2
iptables -t nat -A POSTROUTING -o eth0
iptables -t nat -A POSTROUTING -o eth1
My iptables do the identification mark of the packets, but some things happen that it could not do the routing of packages in Fedora 13 and 12, I don't really know what can be, I tried everything I knew.
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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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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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Mar 3, 2009
I want to use tab networking in my kvm with routing.Can any one guide me how i can do it. i have been reading different guides over the net but not understand any one clearly.I have read this[URL].. One problem is this all my server are remote and no gui is running.I am able to install kvm with ssh console with -nographic and -x "console=ttyS0" option now i want to change from bridging to tap networking with routing.And i have live ip on kvm guest/Virtual machine.
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Feb 20, 2010
IN LAN default GW box I have a routing rule of 172.17.1.0 192.168.180.100 255.255.255.0 UG 0 0 0 eth3 that sends packets matching 172.17.1.0/24 to eth3 etc. When I ping 172.17.1.50 - it goes correctly when ping is issued in the same box (LAN GW) - falls through to default rule when the ping is done in LAN's boxes i.e. it goes to the LAN GW box and then to Internet incorrectly instead of going to eth3 and 192.168.180.100.
Is there any way of seeing why the packet matches or not the routing rules?
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Sep 9, 2011
I'm often on my corporate network but also need to be on another network simultaneously. At the moment I have to manually switch back and forth between the two. I'm using ubuntu 10.04. I've come across an excellent document that explains how to do this: "Linux Advanced Routing & Traffic Control HOWTO" by Bart Hubert. He mentions:
make sure that your kernel is compiled with the "IP: advanced router" and "IP: policy routing" features
I've downloaded the kernel sources, but I don't find any config options with names like these in them.
sudo apt-get build-dep --no-install-recommends linux-image-$(uname -r)
sudo apt-get source linux-image-$(uname -r)
Searching doesn't reveal anything
~/kernelBuild/linux-2.6.35/debian.master$ grep -iR policy . | grep -i routing
~/kernelBuild/linux-2.6.35/debian.master$
So my question is...how can I tell if the kernel I have has these config options. Failing that, how do I build a kernel that does support these things?
Additional use cases for this knowledge. (1) At work with desktop computer plugged into corporate network. Plug 3g phone into USB port. My corporate network wont allow me to access my external servers over ssh, but the 3g phone will. (2) At home on the corporate VPN, but would like to access my other local network computers.
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Feb 16, 2011
I have a network routing problem that I need to fix using a PC with ubuntu installed.
Here are the details of my problem:
- I have two networks.
- The first network is an ADSL router with subnet 192.168.1.x. I do not have access to the router nor change any of its configuration.
- The second network has a subnet 172.26.x.x and connect via a wireless access point. Some of the devices connected to the network require to have static IPs.
- I have a PC with ubuntu installed and two ethernet cards: one connected to the first network and the other connected to the access point.
- I need to share the internet connection between the two networks using ubuntu. I already tried before on windows and the sharing worked when both networks were configured to use the same subnet. Once I changed the subnet of the second network, internet sharing stopped working.
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Sep 3, 2010
Im having a issue with routing internet traffic from my router two different subnets (vlans).
Theres my setup:-
Server:
Both eth0,1 are running dhcp (two scoopes) that works fine!
The output of route -n is:
I have ip_forwarding on aswell, but i can ping the ip on the server running that dhcp scoope ie ping 192.168.4.1 works great but i just cant get the internet on the clients.
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Aug 6, 2010
given above is my network structurei want to enable routing in my machine(192.168.1.5,192.168.2.1)i have already configured /etc/sysctl.confand disabled firewall in my machine i can ping 192.168.2.3,192.168.2.4and in return these two machines can ping 192.168.2.1 but they could not ping 192.168.1.6 and 192.168.1.7
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Dec 13, 2010
I just started my Linux class the other day. We are having to use Fedora 12 it came with our book. For homework we were told to join a forum and ask 3 questions. I myself really didn't like this Idea because I would rather do some digging to find the answer but I do need the grade for the homework haha. My First question is, How do you set up routing from wireless to wired?
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Feb 24, 2011
I have two linux boxes running RHEL 5.5 with internal ip addresses 10.0.0.114/24 and 10.0.0.118/24, and usual gateway 10.0.0.1. There's an apache listening on both ports 80 and 443 for several websites. This works nice, but the feature for load balancing has to be added. For this, externally, but in the same subnet, a hardware device has been placed for load balancing (we call it "F5"), with internal ip 10.0.0.152 (vrrp for 10.0.0.153 and 10.0.0.154). There's a service address that does NAT via round robin to the servers, 10.0.0.208, managed by the F5 balancer.
If I set as gateway the ip 10.0.0.152 in both nodes, I can use the service address for browsing http and https, *BUT* at a cost that ssh and any other connections, at OS logging level, come from 10.0.0.1, which is innaceptable (i.e., I can' set proper security, regardless the F5 is badly configured), so I have to find another way for this. So, I thought of using iptables mangling capabilities, and my thought is that just changing the default route of the incoming http(s) traffic, everything should be ok. I've done the following:
- Create a table called "F5":
# cat /etc/iproute2/rt_tables
[...]
#1 inr.ruhep
#
[code]....
If I tweak the hosts file in my M$ workstation to test individual access for each server, I can browse the websites with no problem, but if I set the service IP address, I get an error "Document contains no data" in the browser after just a few seconds. Apache logs show nothing in its logs. I can see packets arriving, but seem to go in a loop. I can provide some output, but since surely I'm making some mistake in the process, if I get help with the proper knoweledge about how to fix it, the problem will be solved. But if still someone needs it, I can provide more data.
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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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Jun 14, 2011
I've been trying to get it work for 2 days now..
Here's my setup.
MODEM -> router (ISP one don't have access)
from the router it split into 2 connection one to my GW (linux debian) and another to a switch which is connected to a web/email server and the gateway.
My gw use x.x.x.27 and x.x.x.26 (everything I use on these ips is ok)
on the web/email server I have x.x.x.28 29 and 30
With this setup it's ok but I want to eliminate the link to the switch and make it pass thru the GW and i can't manage to get it work!
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Nov 28, 2010
At every site i have two provider vsat and wireless connection.I have a linux machine and wanna setup act router for every site.
SITE 1 :
vsat : gw 10.23.128.1
wireless : gw 192.168.100.1
[code].....
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Oct 6, 2010
I am sharing my DSL internet connection using a modem+wireless router (single device) to 5 systems. I want all my internet traffic to go through one of the linux boxes in my network.
The problem here is that wireless devices connect directly to the modem+wireless router.
Is such routing of traffic possible??
PS: I am not sure if i could convey my situation clearly...
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