IPv6 reverse

Julien ÉLIE julien at trigofacile.com
Sat Dec 26 15:47:58 UTC 2009


Hi,

I do not manage to reverse IPv6 addresses.  For instance:
nnrpd[17962]: ? reverse lookup for 2001:41d0:1:6d44::1 failed: reverse lookup validation failed -- using IP address for access

Yet, it seems to be properly defined:

% host 2001:41d0:1:6d44::1
1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.4.4.d.6.1.0.0.0.0.d.1.4.1.0.0.2.ip6.arpa domain name pointer news.trigofacile.com.

% host news.trigofacile.com
news.trigofacile.com has address 91.121.26.68
news.trigofacile.com has IPv6 address 2001:41d0:1:6d44::1


Therefore, I am only having NNTP-Posting-Host: or Injection-Info:
headers set to "2001:41d0:1:6d44::1" (or another IPv6 address, without
the host name)...

nnrpd uses getaddrinfo() with NETWORK_AF_HINT (valued to AF_UNSPEC in this case),
network_sockaddr_equal() and IN6_ARE_ADDR_EQUAL().


Maybe I have an issue with my system configuration?  (Debian Etch)

-- 
Julien ÉLIE

« Ibi etsi uis te non esse sed es ibi. »




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