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Need Zayo to fix a PTR


From: Giorgio Bonfiglio via NANOG <nanog () lists nanog org>
Date: Sun, 10 May 2026 11:55:54 +0100

Soneone in Zayo forgot a little “.” after “zayo.com <http://zayo.com/>” in a DNS zone and this is a/ messing up the 
formatting of a very legacy mtr report I run and b/ messing up with my OCD:

❯ host 2001:438:ffff::407d:1f69
9.6.f.1.d.7.0.4.0.0.0.0.0.0.0.0.0.0.0.0.f.f.f.f.8.3.4.0.1.0.0.2.ip6.arpa domain name pointer 
ae11.er1.ams1.nl.zip.zayo.com.d.7.0.4.0.0.0.0.0.0.0.0.0.0.0.0.f.f.f.f.8.3.4.0.1.0.0.2.ip6.arpa.

After adding the “.” it will become:

9.6.f.1.d.7.0.4.0.0.0.0.0.0.0.0.0.0.0.0.f.f.f.f.8.3.4.0.1.0.0.2.ip6.arpa domain name pointer 
ae11.er1.ams1.nl.zip.zayo.com.

I’ll offer a beer to whoever fixes this.

[as a side note, are PTRs in large network still really manually managed?]

Thanks!
Giorgio

--
www: grg.pw
email: me () grg pw
mobile: +44 7716 604314 / +39 393 1049073

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