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

[James R. L. <jl...@mi...>]

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