ID mismatch

[Pavel Urban]

Hello,

one of our customers has his own primary DNS. We aren't able to transfer 
  zone from him.

[root at kobyla etc]# dig @80.188.222.162 mikroregion-nymbursko.cz -t axfr

; <<>> DiG 9.2.2 <<>> @80.188.222.162 mikroregion-nymbursko.cz -t axfr
;; global options:  printcmd
mikroregion-nymbursko.cz. 86400 IN      SOA     gran.meu-nbk.cz. 
admin.meu-nbk.cz. 2004091411 10800 3600 604800 86400
;; ERROR: ID mismatch: expected ID 56851, got 0

Unfortunately I don't know what remote system is. Ours are older RedHat 
Linuxes, running Bind 9.2.2. Anybody knows what to do with it? 
Suggestions are welcome, further information will be obtained. Thanks!

Pavel Urban