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Old 03-13-2009, 04:18 AM   #1
bala.linux
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VLAN routing/default gateway ?


Hello All,

I would like to setup the following scenario : My pc have 1 interface eth0 which is connected to my ISP. Now, I have created 1 virtual interfaces
eth0:0. Ip forward is enabled and it is working fine. Now, I want to route all my traffic to go through eth0:0 and through eth0. How can I do this ?

My current default gateway is provided by ISP. I want to force all my packets to pass through my virtual interface. Please let me know your thoughts.

Thanks and Regards,
Bala
 
Old 03-14-2009, 02:09 PM   #2
acid_kewpie
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My thoughts are mainly "why??" firstly you have the phrase "vlan" in the thread title, but you haven't got a vlan interface there in the slightest, just an alias. What are you trying to achieve here?
 
Old 03-15-2009, 06:30 AM   #3
bala.linux
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Quote:
Originally Posted by acid_kewpie View Post
My thoughts are mainly "why??" firstly you have the phrase "vlan" in the thread title, but you haven't got a vlan interface there in the slightest, just an alias. What are you trying to achieve here?
I am trying the policy routing now. No luck so far. I have used vconfig to add the device and used ifconfig to assign a ip of different subnet.

I want to install the chillispot server and to control my own pc. Currently, chillispot works on client/server, in this case I would want my server to act as a client. So, if I could pass my local traffic to a different vlan then I can create a vlan with two virtual interfaces and one acts as a server and other as a client. The physical interface would be managed by the chillispot. Is that possible ? Or do you have any other suggestions ? Basically, looking to provide access to my internet only after passing through the web authentication.

Regards,
Bala

Last edited by bala.linux; 03-15-2009 at 06:33 AM.
 
Old 03-15-2009, 04:24 PM   #4
acid_kewpie
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that seems like a massive piece of over engineering. Chillispot is for hotspots and internet cafes, which surely isn't what you're trying to do with a single machine. what is the point of a web portal? Can't you just use some standard squid authentication?
 
Old 03-16-2009, 12:49 AM   #5
bala.linux
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hmm...no I understand the usage of chillispot. Thats why I want to simulate this environment. But would it not be possible to route the packets to different interfaces ? hmm...leaving he chillispot aside, I am trying to create a virtual ip and trying to send my local packets to it and then forward the same packets to my physical interface.

Local -> Virtual Interface -> Physical Interface
 
Old 03-16-2009, 04:03 AM   #6
acid_kewpie
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well you could use different routing tables and then use iptables marking to bounce between two tables.
 
Old 03-17-2009, 11:17 PM   #7
bala.linux
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well you could use different routing tables and then use iptables marking to bounce between two tables.
I was actually trying the same ... Could you please provide some example ?
 
Old 03-18-2009, 03:27 AM   #8
acid_kewpie
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I've posted a couple recently here, but I can't find my references to them, nor the original docs via google...

All the right doohickeys are used in multilink LB... http://tetro.net/misc/multilink.html but not in the way that you would need to, but hopefully the ideas behind that might be a start. Again though I don't know how possible it is, as it depends on the way the tcp/ip stack routes within linux.
 
Old 03-18-2009, 04:16 AM   #9
bala.linux
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I am currently using this http://www.debian-administration.org/articles/379 as my reference. I will check yours too. Thanks.
 
  


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