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

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

http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/mpls-linux/mpls-linux/NOTE?rev=1.5.2.2&only_with_tag=mpls-linux_1_152&content-type=text/vnd.viewcvs-markup

On Wed, Jul 31, 2002 at 04:35:47PM +0200, Oliver Horvath wrote:
> 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
> 



-- 
James R. Leu