mta4.nelnet.net. A RRSIG NSEC
Question and response
Question
dig mta3.nelnet.net. NSEC
Answer
mta3.nelnet.net. 3600 NSEC mta4.nelnet.net. A RRSIG NSEC
Authority
nelnet.net. 3600 NS pdns04.domaincontrol.com.
nelnet.net. 3600 NS pdns03.domaincontrol.com.
Additional
. 0 OPT ; payload 1280, xrcode 0, version 0, flags 0