On 01/12/2015 15:38, David Conrad wrote: > CloudFlare does anycast. Where you go depends on where you are. Just to rub that in: here I sit in my apartment in downtown Auckland, and here is what I see: C:\windows\system32>tracert www.ietf.org Tracing route to www.ietf.org.cdn.cloudflare-dnssec.net [2400:cb00:2048:1::6814:155] over a maximum of 30 hops: 1 11 ms 4 ms 2 ms fritz.box [2406:e007:48f5:private bits] 2 22 ms 32 ms 24 ms 2406:e000:2801:9::1 3 14 ms 9 ms 9 ms snap.ape.nzix.net [2001:7fa:4:c0cb::9a78] 4 9 ms 15 ms 11 ms cloudflare.ape.nzix.net [2001:7fa:4:c0cb::9a33] 5 8 ms 9 ms 8 ms 2400:cb00:2048:1::6814:155 Trace complete. The Auckland Cloudflare POP is almost in line of sight. Brian > > Regards, > -drc > >> On Nov 30, 2015, at 6:24 PM, John Levine <johnl@xxxxxxxxx> wrote: >> >>> IP Address (IPv6) 2400:cb00:2048:1::6814:155 >>> (www.ietf.org.cdn.cloudflare-dnssec.net.) >> >> The IETF website is handled through Cloudflare: >> >> ;; QUESTION SECTION: >> ;www.ietf.org. IN AAAA >> >> ;; ANSWER SECTION: >> www.ietf.org. 632 IN CNAME www.ietf.org.cdn.cloudflare-dnssec.net. >> www.ietf.org.cdn.cloudflare-dnssec.net. 300 IN AAAA 2400:cb00:2048:1::6814:55 >> www.ietf.org.cdn.cloudflare-dnssec.net. 300 IN AAAA 2400:cb00:2048:1::6814:155 >> >> For some reason, Cloudflare uses a block of IPv6 addresses from APNIC, >> even though they are in California. When I do a traceroute from my >> cable modem in New York, it is two hops past an he.net router in New >> York City and pings in about 40ms which tells me that the addresses >> may be from Hong Kong but the servers are in San Francisco. >> >> R's, >> John >> >