[mpls-linux-general] Routing over Linux

[Daniel G. C. <da...@on...>]

(First of all, sorry for my english)

Hi! I'm making a network with 3 PC's with Linux-MPLS installed over kernel
2.4.13 in Red Hat Linux 7.1, now I'm testing the network before configuring
it with 'mplsadm' and I have some questions. The PC's have 2 ethernet cards
in order to make the 'router' interfaces. I don't activate them at boottime,
I activate them with the 'ifconfig' command.

- I can't ping from one side to other side of the network, that is if I have
the following network,
1 ----- 2 ----- 3  I can ping between 2 and 3, and between 1 and 2 but I
can't ping between 1 and 3, and  I can't ping between 1 and the 2 to 3
interface too, and I can't ping between 3 and 2 to 1 interface too. (it says
that network is unreachable)

I think that I have to activate routing, but I have seen with the 'network
configuration' utility (in gnome system menu) that it is activated in PC
number 2 but it doesn't work. Have I activated routing properly? Where can I
check if routing is activated? and if I don`t have activated it, how can I
activate routing properly?

- When I am configuring the ethernet cards (IP address, netmask,
gateways,...) to make a normal network, I have to put IP addresses that
belong to different networks (for the cards of a particular PC), this is
10.1.0.0 /16 (eth0)--- PC ---(eth1) 10.2.0.0 /16    but in a MPLS network
there isn't routers, they are all switches, so I suppose that all the
interfaces in a MPLS network (one MPLS domain) will have IP addresses that
belong to the same network. Is this correct?, or
Do I have to put the cards' addresses in the same way as if they were normal
routers (different net address) when I make the MPLS network?

Can someone help me? Best regards

Dani