Re: [mpls-linux-general] packets not delivered to layer 3 (??)

[Wayne W. S. <ww...@ho...>]

You also need to setup a lsp from B to A so that the ack packets can find
their way back to A.  Section 2 of the mplsadm readme file contains an
example that construct LSPs between two hosts.


On Wed, 11 Sep 2002, [iso-8859-1] Sameer Gharat wrote:

> Hello James and all,
>
> I have set up 1.152 on two Linux boxes running kernel
> ver. 2.4.18-3. The two boxes are set up as...
>  ---------             ---------
>  |   A   |             |   B   |
>  ---------             ---------
>      |eth0                 |eth0
>      |10.3.8.198           |10.3.8.93
> -----------------------------------
>
> And the lsp was created b/w A and B using...
> On A :
> mplsadm2 -A -O -o push:gen:200:set:eth0:ipv4:10.3.8.93
> ip2 route add 10.3.8.93 dev eth0 lsp 0x00000002
> mpls -L eth0:0
>
> On B:
> mplsadm2 -A -I gen:200:0
> mpls -L eth0:0
>
> I believe these commands are enough to create an LSP
> between A & B... or at least I hope so.
>
> Now, when I try to Ping B from A, the packets reach B,
> but it seems the packets are not delivered correctly
> up to layer 3 on B. The result is that the
> acknowledgement doesn't reach back to A and A shows
> 100% packet loss. If I try to ping A from B, then the
> ping packets reach A and come back to B (taking the
> lsp from A to B). But again, the packets aren't
> recognized by B and again ping shows 100% packet loss.
> Similar thing happens when I tried injecting packets
> using nemesis tools.
>
> Is there any problem with the way I've set up the LSP
> or is it some other problem?
>
> Any help would be greatly appreciated.
>
> Cheers,
> Sameer
>
>
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