Re: [mpls-linux-general] DNAT & MPLS

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

What if you could mark the packet based on incoming label (nfmark or tcindex)?
Would that help?

On Wed, Jul 09, 2003 at 02:46:30PM +0200, Antonio Mancuso wrote:
> Hello,
> I ma doing some testing with Linux + MPLS (/proc/net/mpls_version = 01010702)
> My test network is made by a front-end dispatcher (public IP address) that receive MPLS traffic
> and many back-end servers (private IP address).
> 
> I'd like to dispatch the incoming traffic directed to the public IP address
> based on the MPLS label it carries.
> 
> Simple Net:
> 
> client ---> dispatcher (130.192.a.b) -->n back-end (192.168.c.x)
> 
> let's assume a client send IP traffic to 130.192.a.b (dispatcher) with a MPLS label = 255
> I'd like to set an iptables rule on the dispatcher as:
> 
> iptables -t nat -A PREROUTING -d 130.192.a.b -j DNAT --to 192.168.c.x
> 
> this works fine for IP. How can I modify it to match the MPLS label  (255)?
> Is there a way to match an incoming packet based on the MPLS it carries?
> 
> Thanks a lot and excuse my English :)))
> 
> Antonio
> 
> 
> 
> 
> 
> 
> 
> 
> 
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-- 
James R. Leu