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(_at_)taugh(_dot_)com> 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