On 25.01.19 13:39, Brent Douglas wrote:
We are testing a query:
FQDN: test.testdomain.net
Query Type: AAAA
Client > DNS A > DNS B
Simplified DNS query flow:
1. Client queries test.testdomain.net -t AAAA
2. Query goes to DNS A which then forwards the query to DNS B
3. DNS B responds with 2 ORDERED IPV6 addresses to DNS A
4. DNS A receives the 2 ORDERED IPV6 addresses from DNS B
Expected
5. DNS A responsds with 2 ORDERED IPV6 addresses to Client
What is happening
5. DNS A responds with 2 NON-ORDERED IPV6 addresses to Client
maybe you could try configure sortlist:
ftp://ftp.isc.org/isc/bind9/9.9.11/doc/arm/Bv9ARM.ch06.html#the_sortlist_statement
BTW what is the point of you wanting to use fixed order?
Things we have tried:
Turn off cacheing on DNS A and DNS B
Things we noticed:
When the query goes from DNS A to DNS B, the transaction ID changes
it does not change, it is a different DNS transaction.
When DNS A responds with 2 IPV6 address to Client, the transaction ID
changes back to the original transaction ID.
It does not change, it is the original transaction.
What options/settings are we overlooking to make sure the Client receives
fixed ordered query responses?
What could be the reason for DNS A receiving the ordered query response
from DNS B, but does not send the ordered query response back to the client?
ftp://ftp.isc.org/isc/bind9/9.9.11/doc/arm/Bv9ARM.ch06.html#options
Note
In this release of BIND 9, the rrset-order statement does not support
"fixed" ordering by default. Fixed ordering can be enabled at compile time
by specifying "--enable-fixed-rrset" on the "configure" command line.
--
Matus UHLAR - fantomas, uh...@fantomas.sk ; http://www.fantomas.sk/
Warning: I wish NOT to receive e-mail advertising to this address.
Varovanie: na tuto adresu chcem NEDOSTAVAT akukolvek reklamnu postu.
It's now safe to throw off your computer.
_______________________________________________
Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe
from this list
bind-users mailing list
bind-users@lists.isc.org
https://lists.isc.org/mailman/listinfo/bind-users
