Please check your filters for a.gtld-servers.net & b.gtld-servers.net

Pekka Savola pekkas at netcore.fi
Wed Jan 2 23:04:55 CET 2008


On Mon, 31 Dec 2007, Jeroen Massar wrote:
> It seems that a.gtld-servers.net (located at 2001:503:a83e::2:30/48) and
> b.gtld-servers.net (2001:503:231d::2:30/48) are not reachable by a
> number of sites. As neither of these have route6 objects in the routing
> databases, please check that you are accepting these and other /48's ;)

Tracing to a.gtld-servers.net, 6bone still seems to be alive and 
kicking :

...
  5  se-fre.nordu.net (2001:948:0:f049::1)  7.863 ms  12.965 ms  8.063 ms
  6  2001:7f8:d:fb::139 (2001:7f8:d:fb::139)  8.076 ms  8.24 ms  8.147 ms
  7  sl-bb1v6-nyc-t-1003.sprintv6.net (2001:440:1239:100d::1)  96.818 ms  96.798 ms  96.871 ms
  8  sl-bb1v6-rly-t-1003.sprintv6.net (2001:440:1239:100a::2)  109.447 ms  109.21 ms  109.168 ms
  9  3ffe:2900:1c::2 (3ffe:2900:1c::2)  112.906 ms !S  112.014 ms !S  111.921 ms !S

Do those addresses answer to ping6 from anywhere, or (it seems like 
it) ping6 blocked by (bad) policy ?

-- 
Pekka Savola                 "You each name yourselves king, yet the
Netcore Oy                    kingdom bleeds."
Systems. Networks. Security. -- George R.R. Martin: A Clash of Kings


More information about the ipv6-ops mailing list