Re: [mpls-linux-general] IPV6 over MPLS

[Vino T. <jv...@te...>]

Hello,

On Tue, 2 Oct 2001, James R. Leu wrote:
> > My requirement is to connect to isolated IPV6 network over an existing
> > IPV4/MPLS network. 
> > IPV6 Cloud ---- Linux --- MPLS/IPV4 cloud ----- Linux ---- IPV6 Cloud
> > What is the best way out? What type of translation is suitable for this
> > scenario (6to4/6over4/6in4 etc)?
> ow did you plan to create the LSP across the ipv4 cloud?  Do you need to run
> routing across this link?

The two V6 sites can be having their own Site local addresses. So a static
route via the Edge Linux box would be good enough.

> For this application I think an MPLS tunnel interface is would do what you need.

Is this kind of support already available in the MPLS code? If so does it
require a V6 to V4 translatore as well on the Edge Linux box? If so what
translator is best suited for this task.

Regards,
Vino.

> > On Sun, 30 Sep 2001, James R. Leu wrote:
> > 
> > > On Sat, Sep 29, 2001 at 07:14:42PM +0000, Vino Thomas wrote:
> > > > Hello,
> > > > 
> > > > Does Linux has support for IPV6 over MPLS?
> > > 
> > > Glad you asked (sorry for the delay in responding to you) :-)
> > > 
> > > #1 If you are trying to LSR activity (only labl swap) the yes :-)
> > > #2 If you want to use MPLS tunnel interface, then yes.
> > > #3 If you do not want to use MPLS tunnel interfaces and want to have specific
> > >   entries in the IPv6 routing table sent traffic on a particular LSP then no,
> > >   but it would be too hard to add.
> > > 
> > > #1 is obvious, label swapping is layer 3 agnostic
> > > #2 is a little obscure, and I haven't tested it, but it should work.
> > >    -create a MPLS tunnel interface
> > >    -ifconfig it up (without an address)
> > >    -add a ipv6 route that has a nexthop of the mpls tunnel
> > >     (just an outgoing interface no next hop ip)
> > > #3 requires that some how ipv6 route entries are marked with which LSP
> > >    they should sent traffic on.  Everywhere a ipv6 route lookup is done
> > >    then needs to  check for this MPLS data.
> > > 
> > > #2 should get you up and sending ipv6 data on LSPs
> > > #3 will take more work, but needs to be done at some point
> > > 
> > > I hope this gets the gears moving.  We can go into more details as you
> > > ask more questions.
> > > 
> > > Jim
> > > 
> > > 
> > > > 
> > > > Regards,
> > > > Vino
> > > > 
> > > > 
> > > > 
> > > > 
> > > > 
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> > > -- 
> > > James R. Leu
> > > 
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> > 
> > 
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> -- 
> James R. Leu
> 
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