Re: [mpls-linux-general] ARP and MPLS

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

This maynot be the problem but you also need to set the 'labelspace' on the
incoming interfaces:

mplsadm2 -L eth1:0

Another thing you can try is to turn on mpls kernel debugging:

mplsadm2 -d

Look at the ouptut from 'dmesg' or in /var/log/messages.

Jim

On Sun, Mar 17, 2002 at 05:15:47PM +0100, Linder Erik wrote:
> Hi,
> I have put up a very simple network with 2 pc . After doing all the
> configuration stuff, I try to ping B from A and there I get something
> strange: tha ARP request are sent but keep unanswered
> Tcpdump on the emitting eth gives:
> 17:26:34.873599 arp who-has 137.194.214.142 tell 137.194.214.141
> 
> and it'is all. I don't know what to do , or start looking where
> something has got wrong.
> 
> I hope someone can help me
> Erik Linder
> 
> Here is my config:
> 
>   ---------             ---------
>   |   A   |             |   B   |
>   ---------             ---------
>       |eth1                 |eth1
>       |.141                 |.142
>  -----------------------------------
> A
> ifconfig eth1 137.194.214.141 netmask 255.255.255.192 up
>  
> B
> ifconfig eth1 137.194.214.142 netmask 255.255.255.192 up
> 
> Sur A:
>    mplsadm2 -A -O gen:16:eth1:ipv4:137.194.214.142  
>    iptables -A OUTPUT -d 137.194.214.142/32 -j MPLS --set-key KEY1
>    mplsadm2 -A -I gen:17:0
>  
>    Ou KEY1 est le resultat renvoye par la commande precedante 'mplsadm2'
> 
>  
>  Sur B:
>    mplsadm2 -A -O gen:17:eth1:ipv4:137.194.214.141
>    iptables -A OUTPUT -d 137.194.214.141/32 -j MPLS --set-key KEY2
>    mplsadm2 -A -I gen:16:0
>  
>       Ou KEY1 est le resultat renvoye par la commande precedante
> 'mplsadm2' 
> 
> Sur les 2 host:
>    mplsadm2 -L eth1:0
> 
> 
> PS: I tried using route instead of  iptables and I got the same result
> 
> 
> 
> 
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-- 
James R. Leu