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Hi,

On Tue, May 05, 2020 at 04:45:04PM +0200, Francois-Xavier Le Bail wrote:
> On 05/05/2020 12:15, Gert Doering via tcpdump-workers wrote:
> > 12:11:46.116238 MPLS (label 105, exp 0, ttl 254) (label 24003, exp 0, [S], 
> > ttl 254) IP 10.27.99.2 > 10.27.99.34: ICMP echo request, id 49866, seq 
> > 5160, length 84
> > 12:11:46.117107 MPLS (label 24002, exp 0, [S], ttl 253) IP 10.27.99.34 > 
> > 10.27.99.2: ICMP echo reply, id 49866, seq 5160, length 84
> > 
> > 
> > So, for my debugging purposes, I have what I need now.
> 
> Could you send a pcap file with the ICMP echo request/reply test ?

Of course.  Attached.  This is EVPN/MPLS between two Cisco ASRs (in
case it makes a difference).  One direction has only a single label
because the final router is on the link I'm sniffing, the other direction
has two labels.

Inside are a few machines pinging around plus one or two ARPs.

(The .cap file is very small, just 4 kbyte, so I dare send it to the
list as well)

> And the patch you apply ?

Attached as well.  Not very smart yet, just does "what I need".

gert

-- 
"If was one thing all people took for granted, was conviction that if you 
 feed honest figures into a computer, honest figures come out. Never doubted 
 it myself till I met a computer with a sense of humor."
                             Robert A. Heinlein, The Moon is a Harsh Mistress

Gert Doering - Munich, Germany                             g...@greenie.muc.de

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