IPv6 NAT-PT
Hi,
I have a requirement to test a server using it’s ipv6 interface for DNS querying. The DNS server is ipv4 and has mostly ipv4 data and A records. This seemed like a good opportunity to try out NAT-PT.
It seems that there is a built-in ALG which recognizes the DNS and converts A queries to AAAA. Some packets are converted and some are (silently) dropped. Is there some way to disable the ALG or another method of some simple static ipv6ipv4 Natting on the transport layer only?
Router 2851 12.4T
Thnks Rich
Blogs and organic groups at http://www.ccie.net
_______________________________________________________________________ Subscription information may be found at: http://www.groupstudy.com/list/CCIELab.html
Hi Petr,
Well in fact I was using your blog entry for my configuration – very helpful.
It’s working now after turning off the service – thanks a bunch. I had tried a debug ipv6 nat packet detail and looked at statistics but never got an indication that certain queries were just being silently dropped.
Rgds, Rich
On Thu, Dec 31, 2009 at 4:57 PM, Petr Lapukhov wrote: href=”mailto:nilsi2002@gmail.com”>nilsi2002@gmail.com
Blogs and organic groups at http://www.ccie.net
_______________________________________________________________________ Subscription information may be found at: http://www.groupstudy.com/list/CCIELab.html