I tried to this a month ago, no luck :( i.e. nothing back from them, just goes into no answer e-mail space! Dennis Burgess, Mikrotik Certified Trainer Author of "Learn RouterOS- Second Edition" Link Technologies, Inc -- Mikrotik & WISP Support Services Office: 314-735-0270 Website: http://www.linktechs.net - Skype: linktechs -- Create Wireless Coverage's with www.towercoverage.com - 900Mhz - LTE - 3G - 3.65 - TV Whitespace -----Original Message----- From: Darren Pilgrim [mailto:nanog@bitfreak.org] Sent: Tuesday, December 18, 2012 9:09 AM To: nanog@nanog.org Subject: www.eftps.gov contact The hostname www.eftps.gov has both A and AAAA records, but the site is only reachable via IPv4. Worse, the IPv6 connectivity is broken in such a way that Firefox and Internet Explorer do not fall back to IPv4. Tracing is broken for both protocols. The 10-net addresss in the IPv4 path were cute. Calling their technical support was an exercise in futility. Supposedly they forwarded messages on to the right people; but the site is still broken after over a week's wait. If someone knows the admins behind the EFTPS website and can forward this to them, the accounting firm for which I work would appreciate it. Thanks,