On Fri, Mar 12, 2021 at 01:59:00PM +0100,
 Stephane Bortzmeyer <bortzme...@nic.fr> wrote 
 a message of 12 lines which said:

> % blaeu-reach -r 100 -c FR 193.253.55.213
> 99 probes reported
> Test #29292886 done at 2021-03-12T12:57:09Z
> Tests: 215 successful tests (85.3 %), 0 errors (0.0 %), 37 timeouts (14.7 %), 
> average RTT: 218 ms

Ceci dit, TCP montre la même chose qu'ICMP, question RTT. Donc, je
dirais que c'est traceroute qui déconne quelque part (réponses
générées par un intermédiaire ?)

% blaeu-traceroute -c FR -r 5 --protocol TCP --size=0 --port=443 --first_hop=64 
--format 193.253.55.213 
Measurement #29292908 Traceroute 193.253.55.213 from FR uses 5 probes
5 probes reported
Test #29292908 done at 2021-03-12T13:03:19Z
From:  194.214.4.144    2200    FR-RENATER Reseau National de 
telecommunications pour la Technologie, FR
Source address:  10.251.63.70
Probe ID:  17244
64    193.253.55.213    3215    France Telecom - Orange, FR    [353.215, 
367.756, 3291.778]

From:  82.65.39.251    12322    PROXAD, FR
Source address:  192.168.0.241
Probe ID:  18685
64    193.253.55.213    3215    France Telecom - Orange, FR    [394.233, 
343.049, 407.722]

From:  93.6.71.141    15557    LDCOMNET, FR
Source address:  192.168.1.30
Probe ID:  23369
64    193.253.55.213    3215    France Telecom - Orange, FR    [356.904, 
331.033, 366.082]

From:  37.71.138.74    15557    LDCOMNET, FR
Source address:  192.168.33.26
Probe ID:  54038
64    193.253.55.213    3215    France Telecom - Orange, FR    [376.377, 
333.356, 415.168]

From:  82.65.251.17    12322    PROXAD, FR
Source address:  192.168.10.112
Probe ID:  54423
64    193.253.55.213    3215    France Telecom - Orange, FR    [379.159, 
3309.494, 3319.243]


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