Sorry for top-post.
Your expectation is incorrect.
zone "0/24.110.252.173.in-addr.arpa"
is not the same as
zone "173.252.110.24.in-addr.arpa"
hth,
Len
>________________________________
> From: sumsum 2000 <sum2h...@gmail.com>
>To: bind-users@lists.isc.org
>Sent: Monday, July 8, 2013 11:21 PM
>Subject: Reverse Lookups with Forwarders
>
>
>
>I have a reverse lookup zone file configuration as follows:
>zone "0/24.110.252.173.in-addr.arpa" {
>type forward; forward only;
>forwarders {10.10.96.1;};
>};
>
>
>When I do dig -x 172.252.110.27, I expect it to forward it to 10.10.96.1, but
>instead, it uses the default resolver.
>
>Am I missing something.
>
>
>
>The address space 173.252.110.0/24 matches 255 address ranging from
>173.252.110.0-255. So if DNS Server X is configured against this zone , then
>any reverse DNS request for 173.252.110.0-173.252.110.255 should be forwarded
>via DNS Server X
Currently this is not the case. There is no forwarding in the above scenario (
where CIDR notation x.x.x.x/Mask is used) . All requests are forwarded via
global resolver only
Although a reverse lookup x.x.x.x/Mask does route through DNS Server X but this
does not seem to be valid QNAME format for PTR queries.
>
>
>Only when the zone file is changed to
>zone "110.252.173.in-addr.arpa" IN {
>type forward;
>forwarders {10.10.96.1;};
>forward only;
>};
>
>
>All the requests for
>
>173.252.110.0-173.252.110.255 is forwarded to 10.10.96.1.
>
>
>
>
>
>
>
>
>
>_______________________________________________
>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
>
>_______________________________________________
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
