6 May
2024
6 May
'24
3:37 a.m.
—
Dave K9DC, K9IP
On May 5, 2024, at 16:18, Dan Cross via 44net
<44net(a)mailman.ampr.org> wrote:
* PTR queries for _most_ 44Net IP addresses issued over IPv4 from
external machines on the Internet fail reliably. For example, I
cannot query for 44.44.48.1 (my gateway), or 44.182.21.1 (YO2LOJ's
machine). I don't believe I have ever seen any of these queries
succeed.
They work fine using any public nameserver.
dave@Dave-MBPMax:~$ dig @1.1.1.1 -x 44.44.48.1
; <<>> DiG 9.10.6 <<>> @1.1.1.1 -x 44.44.48.1
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 51161
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1232
; OPT=15: 00 12 ("..")
;; QUESTION SECTION:
;1.48.44.44.in-addr.arpa. IN PTR
;; ANSWER SECTION:
1.48.44.44.in-addr.arpa. 300 IN PTR gw.kz2x.ampr.org.
; <<>> DiG 9.10.6 <<>> @1.1.1.1 -x 44.182.21.1
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 42212
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1232
; OPT=15: 00 12 ("..")
;; QUESTION SECTION:
;1.21.182.44.in-addr.arpa. IN PTR
;; ANSWER SECTION:
1.21.182.44.in-addr.arpa. 300 IN PTR yo2tm.ampr.org.