maybe is a good time to enable IPv6 :-) We noticed issues on IPv4, but IPv6 was working perfectly (we are on Google IPv6 program)... I was able to access google all the times, as i was using IPv6 as preferred transport IPv4: traceroute to www.google.com (209.85.227.104), 30 hops max, 40 byte packets 1 ge130-1000m.cr2.lisboa.nfsi.pt (81.92.200.126) 0.159 ms 0.154 ms 0.148 ms 2 xe12-10GE.xmr1.Lisbon.as25137.net (81.92.201.10) 0.330 ms 0.408 ms 0.450 ms 3 if-3-1.core1.PV9-Lisbon.as6453.net (195.219.187.49) 0.238 ms 0.279 ms if-3-2.core1.PV9-Lisbon.as6453.net (195.219.186.9) 0.275 ms 4 if-12-0-0.mcore3.L78-London.as6453.net (195.219.144.5) 27.960 ms 27.993 ms 28.083 ms 5 if-1-0-0.mse1.LRT-London.as6453.net (195.219.144.2) 27.483 ms 27.225 ms 27.224 ms 6 if-13-0-0-3.mcore3.LDN-London.as6453.net (195.219.195.21) 34.298 ms 33.299 ms 33.242 ms 7 Vlan1254.icore1.LDN-London.as6453.net (195.219.195.90) 27.223 ms 27.219 ms 27.302 ms 8 xe-10-2-0-edge3.london1.level3.net (4.68.63.105) 27.444 ms 27.444 ms 27.437 ms 9 ae-11-51.car1.London1.Level3.net (4.69.139.66) 27.566 ms 27.673 ms ae-21-52.car1.London1.Level3.net (4.69.139.98) 27.656 ms 10 * * * 11 * * * 12 * 66.249.95.170 (66.249.95.170) 373.764 ms 72.14.232.134 (72.14.232.134) 387.434 ms 13 * * * 14 * (209.85.243.93) 403.618 ms * 15 wy-in-f104.google.com (209.85.227.104) 376.948 ms * * IPv6: traceroute to www.google.com (2001:4860:a004::68), 30 hops max, 40 byte packets 1 ge-1.Edge1.ip6.Lisbon.NFSi.pt (2001:b18::ffff) 8.656 ms 8.692 ms 8.736 ms 2 2001:5a0:1500::1 (2001:5a0:1500::1) 0.585 ms^C root@matrix:/var/log# traceroute6 www.google.com traceroute to www.google.com (2001:4860:a004::68), 30 hops max, 40 byte packets 1 ge-1.Edge1.ip6.Lisbon.NFSi.pt (2001:b18::ffff) 0.133 ms 0.212 ms 0.209 ms 2 2001:5a0:1500::1 (2001:5a0:1500::1) 0.198 ms 2001:5a0:1500::11 (2001:5a0:1500::11) 0.192 ms * 3 2001:5a0:1500::1a (2001:5a0:1500::1a) 26.925 ms * * 4 2001:5a0:c00:100::e (2001:5a0:c00:100::e) 36.672 ms * * 5 2001:5a0:200::5 (2001:5a0:200::5) 130.695 ms 130.838 ms 130.826 ms 6 pr61.ams04.net.google.com (2001:7f8:1::a501:5169:1) 42.306 ms 41.953 ms 42.176 ms 7 * * * 8 * * * 9 ww-in-x68.google.com (2001:4860:a004::68) 42.858 ms 45.349 ms 44.190 ms Those traceroutes have been taken 1 hour ago, orso, but now everything looks ok in both protocols. cheers, --- Nuno Vieira nfsi telecom, lda. nuno.vieira@nfsi.pt Tel. (+351) 21 949 2300 - Fax (+351) 21 949 2301 http://www.nfsi.pt/