[mpls-linux-general] Mpls installation problems with the new version.

[Oliver H. <ho...@tm...>]

Hi,

I try to install a mpls network, in a first step with two PCs.
I use kernel 2.4.18 and the mpls version 1.152, July 27, 2002.

PC1: obiwan (192.168.2.1)  <---> PC2: amidala (192.168.2.2)

Each PC has a network card with 4 slots (to build up a bigger network
later).

--- config section start ---

Configuration of PC1:
Label 21 (push and send) and label 22 (receive and push) 

[root@obiwan root]# cat /proc/net/mpls_labelspace 
eth1	0	12
[root@obiwan root]# cat /proc/net/mpls_in         
0x40005400 189/21369/0 gen 21 0 1 POP PEEK 
[root@obiwan root]# cat /proc/net/mpls_out 
0x00000004 666/51158/0 2 PUSH(gen 22) SET(eth1,192.168.2.2) 
[root@obiwan root]# /mnt/image/pkg/ip route add 192.168.2.2/32 via
192.168.2.2 lsp 0x00000004
[root@obiwan root]# netstat -rn            
Kernel IP Routentabelle
Ziel         Router       Genmask      Flags   MSS Fenster irtt Iface
192.168.2.2   192.168.2.2   255.255.255.255 UGH     40 0    0 eth1


Configuration of PC2:
[root@amidala root]# cat /proc/net/mpls_labelspace 
eth0	0	11
[root@amidala root]# cat /proc/net/mpls_in         
0x40005800 738/59582/0 gen 22 0 1 POP PEEK 
[root@amidala root]# cat /proc/net/mpls_out 
0x00000012 238/25613/0 2 PUSH(gen 21) SET(eth0,192.168.2.1) 
[root@amidala root]# /mnt/image/pkg/ip route add 192.168.2.1/32 via
192.168.2.1 lsp 0x00000012
[root@amidala root]# netstat -rn
Kernel IP Routentabelle
Ziel        Router        Genmask        Flags   MSS Fenster irtt Iface
192.168.2.1    192.168.2.1    255.255.255.255 UGH     40 0      0 eth0

--- config section stop ---

Now I tried to see, that I am really using MPLS. For that reason I have
installed ethereal.

Now I have the following problems:

If I ping obiwan I get the following output of tethereal:

2615.091161 02:01:08:00:36:94 -> c0:a8:02:02:c0:a8 0xb909 Ethernet II
2615.091215   obiwan-2-1 -> amidala      ICMP Echo (ping) reply

What the hell is 02:01:08:00:36:94? It looks like a MAC address, but we
have no cards with these address.
The answer of obiwan looks good. I had a look on it with ethereal and it
looks like a "normal" mpls header.
But the ping request is bad. With ethereal I saw, that there are 6
MPLS-Headers are included. But why? I appended the output of ethereal.

The second thing is, that I am able to ping obiwan, but a traceroute to
the same IP (only one hop of course) generates no output. I have to
press cntl-c.
[root@amidala root]# traceroute 192.168.2.1
traceroute to 192.168.2.1 (192.168.2.1), 30 hops max, 38 byte packets

[root@amidala root]#

So whats wrong?
Maybe I have patched the wrong version of iproute2?


I hope someone can help me.
Thanks.

Oliver