Re: [mpls-linux-general] ebtables info

[Adrian P. <adr...@gm...>]

Hello,
You can try by manually setting MAC-IP mappings and bypass the ARP mechanism
(this way you can test your mpls testbed). You can try with something like:
 arp [-v]   [<HW>] [-i <if>] -s  <host> <hwaddr> [temp]            <-Add
entry
 arp -s 1.2.3.4 00:11:22:33:44:55

You can view your mappings with arp -n.

Good luck!


On Tue, May 19, 2009 at 3:29 AM, Ricardo Faria <ric...@fe...>wrote:

> Hello,
> I am doing a network to use MPLS with several terminal machines ( this
> have IPs) and to connect all i have a layer 2 network made by computers
> that are going to route the traffic using MPLS. I need to know, in this
> middle computers, the neightbours MAC to build the path between the
> terminal machines ( that have IPS). My problem is that ARP need to
> associate a MAC to a IP, which i do not have in this middle  computers.
> So i was wondering if ebtables could help me build a "arp" table, i.e.,
> the computer PC2 that is connected to one final terminal PC1 ( that has
> an IP) sends back to the network, in broadcast, a specific frame with is
> own  PC2-MAC, and the terminal PC1 MAC-IP pair. The PC3 listen to this
> frame and stores that the route to the IP of PC1 is using PC2. PC3 does
> exactly the same and so on. PC4 does the as PC2 when PC5 connects to it.
> I want to know if ebtables could help me build specific frames and how
> to send them to the network and how to catch them.
>
>
> EX.:
>
>   PC1----------PC2--------PC3------PC4--------PC5
> (MAC/IP)   (MAC)    (MAC)  (MAC)   (MAC/IP)
>
>
>
>
> If someone could help me i would appreciated.
> Thank you and sorry for the bad spelling english.
>
>
>
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