Voilà le résultat du traceroute directement sur le VPS en mode normal déjà a la base ça ne marche pas. donc je pense pas que c'est vos conf's. Ou alors faudra me dire comment faire plus simple
conf d'origine interface
# The loopback network interface
auto lo
iface lo inet loopback
# The normal eth0
allow-hotplug eth0
iface eth0 inet dhcp
# Additional interfaces, just in case we're using
# multiple networks
allow-hotplug eth1
iface eth1 inet dhcp
allow-hotplug eth2
iface eth2 inet dhcp
traceroute depuis FREE OK
traceroute to vpsYYYYYY.ovh.net (YY.YY.YY.YYY), 64 hops max
1 192.168.1.1 (_gateway) 0,542ms 0,395ms 0,428ms
2 194.149.169.61 (194.149.169.61) 14,117ms 14,040ms 14,323ms
3 194.149.166.62 (194.149.166.62) 14,727ms 14,117ms 14,015ms
4 54.36.50.110 (gsw-1-a9.fr.eu) 87,134ms 14,985ms 14,671ms
5 * * *
6 * * *
7 * * *
8 94.23.122.138 (be102.sbg-g1-nc5.fr.eu) 20,331ms 21,339ms 21,154ms
9 * * *
10 * * *
11 * * *
12 * * *
13 * * *
14 * * *
15 * * *
16 YY.YY.YY.YYY (YYY.ip-YY-YY-YY.eu) 20,277ms 19,593ms 19,917ms
root@debian:/
traceroute depuis Orange KO
traceroute to vpsYYYYYY.ovh.net (YY.YY.YY.YYY), 30 hops max, 60 byte packets
1 _gateway (192.168.1.254) 2.723 ms 2.784 ms 2.846 ms
2 80.10.126.137 (80.10.126.137) 21.645 ms 21.698 ms 21.702 ms
3 * * *
4 ae42-0.nrstr202.Strasbourg.francetelecom.net (193.252.160.154) 27.869 ms 27.867 ms ae42-0.nrstr201.Schiltigheim.francetelecom.net (193.252.160.150) 27.807 ms
5 ae45-0.nridf302.Paris13eArrondissement.francetelecom.net (193.251.126.22) 37.620 ms ae45-0.nridf301.Paris15eArrondissement.francetelecom.net (193.251.126.18) 35.784 ms ae45-0.nridf302.Paris13eArrondissement.francetelecom.net (193.251.126.22) 40.130 ms
6 ae44-0.noidf002.Aubervilliers.francetelecom.net (193.252.99.106) 40.120 ms ae44-0.noidf001.Paris3eArrondissement.francetelecom.net (193.252.99.102) 67.758 ms 37.704 ms
7 * * *
8 * * *
9 * * *
10 * * *
11 be102.sbg-g1-nc5.fr.eu (94.23.122.138) 34.059 ms 33.988 ms 33.849 ms
12 * * *
13 * * *
14 * * *
15 * * *
16 * * *
17 * * *
18 * * *
19 * * *
20 * * *
21 * * *
22 * * *
23 * * *
24 * * *
25 * * *
26 * * *
27 * * *
28 * * *
29 * * *
30 * * *
root@debian:/