[dns-operations] EDNS and TLDs

[Mark Andrews]

The following servers don't support EDNS.

im 217.23.163.140 (hoppy.iom.com)
im 217.23.160.50 (barney.advsys.co.uk)
im 80.168.83.242 (pebbles.iom.com)
ye 195.94.0.34 (sah1.ye)

The following servers nominally support EDNS by do not correctly
handle well formed EDNS queries. They either block the queries
and/or send malformed responses depending on how the request was
constructed.

cy 194.42.1.55 (ns2.ucy.ac.cy)
cy 194.42.29.1 (cynic.dns.cy)
dj 193.251.143.162 (bow.intnet.dj)
et 213.55.64.36 (ns1.telecom.net.et)
et 213.55.64.38 (ns2.telecom.net.et)
fo 193.163.102.12 (copenhagen.nic.fo)
fo 2a01:630:0:40::12 (copenhagen.nic.fo)
ge 212.72.130.11 (ns.nic.ge)
gy 190.80.0.41 (ns1.gtt.co.gy)
gy 190.80.0.42 (ns2.gtt.co.gy)
kp 175.45.176.15 (ns1.kptc.kp)
kp 175.45.176.16 (ns2.kptc.kp)
kr 202.30.124.100 (e.dns.kr)
kw 161.252.48.140 (dns1.kw)
kw 161.252.48.150 (dns2.kw)
kw 161.252.48.145 (dns3.kw)
ma 193.51.208.13 (dns.inria.fr)
mp 202.128.29.2 (ns1.nic.mp)
mp 202.128.29.135 (ns2.nic.mp)
mp 75.101.129.89 (ns3.nic.mp)
mp 75.101.133.101 (ns4.nic.mp)
np 202.52.255.5 (shikhar.mos.com.np)
ps 213.244.82.147 (dns1.gov.ps)
samsung 202.30.124.100 (e.dns.kr)
ua 2001:470:2e:1::27 (he1.ns.ua)
ua 216.218.215.27 (he1.ns.ua)
vu 196.192.110.15 (cctld-vu.orange.mu)
xn--3e0b707e 202.30.124.100 (e.dns.kr)
xn--cg4bki 202.30.124.100 (e.dns.kr)
xn--fiqs8s 125.208.35.1 (k.dns.cn)
xn--fiqz9s 125.208.35.1 (k.dns.cn)
xn--ygbi2ammx 213.244.82.147 (dns1.gov.ps)
za 196.21.79.50 (disa.tenet.ac.za)
za 2001:4200:ffff:a::1 (disa.tenet.ac.za)

For specific errors see https://ednscomp.isc.org/compliance/tld-report.html
or run the EDNS compliance tester https://ednscomp.isc.org/ednscomp

-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE:	+61 2 9871 4742		         INTERNET: marka at isc.org