On 2013-09-18, at 17:41, Ben
anyway, i think in general it's better to ping non any cast addresses, and a quick check suggested that there are at least nodes in scotland, los angeles, and auckland, but i don't know if you'd be keen to expose the non any cast ip addresses of these locations, and if that'd be ok to ping.
[krill:~]% dig nodes.l.root-servers.org txt +tcp | grep -i zealand nodes.l.root-servers.org. 21566 IN TXT "wlg41.l.root-servers.org" "Wellington" "" "New Zealand" "AsiaPacific" nodes.l.root-servers.org. 21566 IN TXT "wlg42.l.root-servers.org" "Wellington" "" "New Zealand" "AsiaPacific" nodes.l.root-servers.org. 21566 IN TXT "wlg43.l.root-servers.org" "Wellington" "" "New Zealand" "AsiaPacific" nodes.l.root-servers.org. 21566 IN TXT "wlg44.l.root-servers.org" "Wellington" "" "New Zealand" "AsiaPacific" nodes.l.root-servers.org. 21566 IN TXT "akl01.l.root-servers.org" "Mangere" "" "New Zealand" "AsiaPacific" nodes.l.root-servers.org. 21566 IN TXT "akl41.l.root-servers.org" "Mangere" "" "New Zealand" "AsiaPacific" nodes.l.root-servers.org. 21566 IN TXT "akl42.l.root-servers.org" "Mangere" "" "New Zealand" "AsiaPacific" nodes.l.root-servers.org. 21566 IN TXT "akl43.l.root-servers.org" "Mangere" "" "New Zealand" "AsiaPacific" nodes.l.root-servers.org. 21566 IN TXT "akl44.l.root-servers.org" "Mangere" "" "New Zealand" "AsiaPacific" nodes.l.root-servers.org. 21566 IN TXT "chc01.l.root-servers.org" "Christchurch" "" "New Zealand" "AsiaPacific" [krill:~]% [krill:~]% host chc01.l.root-servers.org chc01.l.root-servers.org has address 202.53.188.114 [krill:~]% [krill:~]% host akl41.l.root-servers.org akl41.l.root-servers.org has address 74.80.125.64 akl41.l.root-servers.org has IPv6 address 2001:500:15:1700::64 [krill:~]% See also http://tools.ietf.org/html/draft-jabley-dnsop-anycast-mapping-02 (and if you're interested in reviewing that document for clarity, please do let me know -- it's stuck in the individual submission queue right now with Nevil having difficulty finding people to look at it, and I'd like to get it published). Joe