ipv4-mapped reverse lookups

[Mark Andrews]

One could also look at the dns64 reverse code to do this. It synthesises cname records on the fly. 

Mark

On 09/07/2013, at 8:27, Mark Andrews <marka at isc.org> wrote:

> Getnameinfo and gethostbyaddr are supposed to lookup the in-addr.arpa records instead of ip6.arpa records for mapped addresses. If you only have a limited range of addresses one could use $generate to add cname records which map from ip6.arpa to in-addr.arpa.
> 
> Mark
> 
> On 09/07/2013, at 8:12, "Lawrence K. Chen, P.Eng." <lkchen at ksu.edu> wrote:
> 
>> For reasons unknown, some old Solaris servers are suddenly seeing connections to them as ipv4-mapped ipv6 (ie: ::ffff:10.20.30.40 )  Which is causing problems because it needs the reverse lookup to be right.
>> 
>> So while we struggle between spending time to investigate why or continue to try to get people to upgrade from these old forgotten servers.
>> 
>> Is there an easy way for me to provide reverse lookups for those?
>> 
>> -- 
>> Who: Lawrence K. Chen, P.Eng. - W0LKC - Senior Unix Systems Administrator
>> For: Enterprise Server Technologies (EST) -- & SafeZone Ally
>> Snail: Computing and Telecommunications Services (CTS)
>> Kansas State University, 109 East Stadium, Manhattan, KS 66506-3102
>> Phone: (785) 532-4916 - Fax: (785) 532-3515 - Email: lkchen at ksu.edu
>> Web: http://www-personal.ksu.edu/~lkchen - Where: 11 Hale Library
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