Queries to a positively cached zone are failing (phila.gov)

[Stephane Bortzmeyer]

On Wed, Mar 15, 2006 at 12:32:58PM +0000,
 Ronan Flood <ronan at noc.ulcc.ac.uk> wrote 
 a message of 21 lines which said:

> Also BIND will be using EDNS, 

Congratulations:

 % dig  @dns.phila.gov NS phila.gov 

; <<>> DiG 9.2.4 <<>> @dns.phila.gov NS phila.gov
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 28811
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 2

;; QUESTION SECTION:
;phila.gov.                     IN      NS

;; ANSWER SECTION:
phila.gov.              86400   IN      NS      dns.phila.gov.
phila.gov.              86400   IN      NS      dns2.phila.gov.

;; ADDITIONAL SECTION:
dns.phila.gov.          86400   IN      A       170.115.249.10
dns2.phila.gov.         86400   IN      A       170.115.249.11

;; Query time: 121 msec
;; SERVER: 170.115.249.10#53(dns.phila.gov)
;; WHEN: Wed Mar 15 14:01:57 2006
;; MSG SIZE  rcvd: 96

% dig +bufsize=1024  @dns.phila.gov NS phila.gov 

; <<>> DiG 9.2.4 <<>> +bufsize=1024 @dns.phila.gov NS phila.gov
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: FORMERR, id: 58304
;; flags: qr rd ra; QUERY: 0, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0

;; Query time: 119 msec
;; SERVER: 170.115.249.10#53(dns.phila.gov)
;; WHEN: Wed Mar 15 14:02:35 2006
;; MSG SIZE  rcvd: 12


Now, BIND should retry without EDNS, no?