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Old 11-18-2009, 03:09 PM   #1
nali27
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Registered: Sep 2009
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dual stack DNS issue


hi all,

what would happen if i place my dns server within a LAN with a IPv6 address which routes through a tunnel and private IPv4 address?

what would happen if it is behind a proxy server when connecting to the internet?

does windows XP supports DNS queries over IPv6 transport?

thnx in advance
 
Old 11-20-2009, 02:38 AM   #2
janoszen
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Works

In theory all current OS' are IPv6 compatible (XP SP3 included). However, to my knowledge there is no protocol level technology to connect IPv4 addresses from IPv6 and vice versa (except for tunneling, which basically is an IPv6 connection). So you don't want to disconnect your hosts from native IPv4 just yet.

Your DNS server should work fine dual stacked, since it does not depend on the underlying transport.

Regarding the proxy, if your firewall allows it, it works, if not, no.

A word of warning: I don't know where you are going with this, but BE SURE TO CHECK THE SECURITY IMPLICATIONS FIRST! IPv6 isn't just a larger address space, you have to relearn from scratch. I hope, that was explicit enough.
 
Old 11-22-2009, 08:13 AM   #3
nali27
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thnx 4 da rply,

i have placed my dual stack dns server in a private IPv4 environment. when i make some query, it initiate its recursive queries from ipv6 capable DNS root servers, but it does not finalize its activity and return me the required address. i thought this was due to my private IPv4 address. can you explain this?
 
Old 11-23-2009, 10:58 AM   #4
janoszen
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No

AAAA queries should work fine with a dual stacked DNS server. Actually, as long as the domain recursion isn't going into IPv6 address space, to my knowledge you don't need a dual stack anyway. Most likely something is wrong with your DNS server.
 
  


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