vrf support in FreeBSD

[Julian Elischer]

Milan Obuch wrote:

>On Tuesday 09 May 2006 06:54, Julian Elischer wrote:
>  
>
>>Pramod Srinivasan wrote:
>>    
>>
>>>Hi Folks,
>>>
>>>I am curious to know if there is any plans to support multiple routing
>>>tables in FreeBSD's official release?
>>>
>>>There was some discussion on this topic last year, if there is any vrf
>>>patch for a latest release of FreeBSD, I would love to give it a try.
>>>      
>>>
>>I am doing some small bits of work on this..
>>
>>    
>>
>
>Do you have anything to show/test? I am really interested in this and would 
>like to help, however, I have no real kernel knowledge in this area, sorry.
>
>  
>
>>how do you want to select which table should be used?
>>(This is more of a 'survey' as I am trying to work out what I should
>>support)
>>
>>    
>>
>
>I saw two approaches on this issue - older one (discovered by me sooner - 
>spring 2003) was some MPLS patches made by Luigi Iannone uses per-socket 
>option, somewhat similar to Cisco's method (specifying vrf on command line, 
>however, I have no internal knowledge of IOS). Somewhat later I discovered 
>Marco Zec's vimage patch, which enhances jails for this. This makes routing 
>tables management and understanding simpler - at least for me. I would like 
>to use second one or something similar.
>  
>
I have a rather 'simplistic' solution..

I have alterred ipfw 'table' so that you can do

ipfw table 2 add 1.2.3.4/24 2.3.4.5

and you can then use it to do:

ipfw add 300 fwd tablearg from myrouter to table(2) out recv fxp2



>Regards,
>  
>


>Milan
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>