[mpls-linux-general] reg : GRE tunnels .

[Sandeep S. <san...@it...>]

Hi,

Thanx a lot for the information.

So , will GRE tunnels work with mpls-0.993 itself or only with the latest
patch supplied by Mr.James Lieu ?

This is because I was going thru some kernel code after patching 
the 0.993 version , especially ip_gre.c and
it doesn't seem to contain MPLS specific code.

and also the latest patch doesn't seem to have made it to the
mailing-list.

Am I right?

Cheers,
Sandeep.


Sandeep Subramaniam
Graduate Research Assistant
ITTC, Raymond Nichols Hall,
University of Kansas



On 10 Nov 2001, Steven Van den Berghe wrote:

> I don't have a pointer at hand right now, but from the top of my hat you
> need to do something like:
> 
> endpoint A: 
> 	ip tunnel add mode gre remote <address B> local <address A>
> endpoint B: 
> 	ip tunnel add mode gre remote <address A> local <address B>
> 
> This will create a new (virtual) point-to-point interface on both ends,
> which can be used as any other (ethernet-type) interface. This should
> work both with our extensions (including RSVP-TE) as the original
> version of Jim (including LDP).
> 
> If you need more help, just let me know. For more information on the
> "advanced" linux networking stuff (like GRE, policy routing, ...) i
> would suggest to have a look at 
> 
> http://www.linuxdoc.org/HOWTO/Adv-Routing-HOWTO.html
> 
> Best regards,
> Steven
> 
> On Sat, 2001-11-10 at 01:27, Sandeep Subramaniam wrote:
> > Hi,
> > 
> > As I had mentioned in my previous email , I need to do MPLS in IP
> > encapsulation at the ingress and decapsulation at the egress.
> > 
> > You suggested that I use GRE tunnels for this purpose .Thanks for the
> > idea.
> > 
> > If I am not wrong, the delivery header shall be IPv4 header and the
> > payload packet a MPLS pkt with the GRE header in-between.
> > 
> > Since I am new to using your MPLS implemenation , can u tell me how to set
> > up GRE tunnels to do MPLS in IP encapsulation .
> > 
> > or can u give me a pointer to some documents explaning that ?
> > 
> > Thank you very much
> > Sandeep. 
> > 
> > Sandeep Subramaniam
> > Graduate Research Assistant
> > ITTC, Raymond Nichols Hall,
> > University of Kansas
> > 
> > 
> > 
> > On Tue, 30 Oct 2001, Steven Van den Berghe wrote:
> > 
> > > You can use GRE tunnels to accomplish that. I think the latest
> > > mpls-linux shouldn't have a problem with that.
> > > Just create the tunnel over the IP network, and use the created
> > > pseudo-device as a normal device.
> > > 
> > > bye,
> > > Steven
> > > 
> > > Sandeep Subramaniam wrote:
> > > 
> > > > Hi,
> > > >
> > > > Has anyone tried to implement MPLS in IP encapsulation in the kernel?
> > > >
> > > > ie wrapping the MPLS pkt created at the ingress with an IP hdr.
> > > >
> > > > Any ideas ?
> > > >
> > > > Thanx.
> > > > Sandeep.
> > > >
> > > > Sandeep Subramaniam
> > > > Graduate Research Assistant
> > > > ITTC, Raymond Nichols Hall,
> > > > University of Kansas
> > > >
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> > > --
> > > Steven Van den Berghe
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> > 
> > 
> -- 
> --
> Steven Van den Berghe
> ste...@in...
> Workgroup Broadband Communication Networks
> Department Information Technology
> Ghent University - Belgium
> Phone:  +32 (0)9 267 35 86 | Fax  :  +32 (0)9 267 35 99
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