FORMERR from bind9 for reverse map for Ottawa dialup

Mark_Andrews at isc.org Mark_Andrews at isc.org
Thu Aug 21 00:33:57 UTC 2003


	The original poster is running a BIND 9 snapshot.  It's
	logging FORMERR as it has detected attempted cache poisoning
	which is clear from the trace below.

	Perhaps the other question we would be asking UUNet is 
	why they are forcing all reverse lookups through extra
	sets of nameserver rather than directly delegating to
	dialdns1.uu.net and dialdns2.uu.net.  Every subzone of
	10.64.in-addr.arpa is delegated to these two servers.

	Before 9.3 is released the error message will be adjusted.

	Mark

; <<>> DiG 9.2.3rc1 <<>> +trace 165.157.10.64.in-addr.arpa ptr
;; global options:  printcmd
.			365137	IN	NS	m.root-servers.net.
.			365137	IN	NS	b.root-servers.net.
.			365137	IN	NS	c.root-servers.net.
.			365137	IN	NS	d.root-servers.net.
.			365137	IN	NS	e.root-servers.net.
.			365137	IN	NS	f.root-servers.net.
.			365137	IN	NS	g.root-servers.net.
.			365137	IN	NS	h.root-servers.net.
.			365137	IN	NS	i.root-servers.net.
.			365137	IN	NS	j.root-servers.net.
.			365137	IN	NS	k.root-servers.net.
.			365137	IN	NS	l.root-servers.net.
.			365137	IN	NS	a.root-servers.net.
;; Received 292 bytes from 127.0.0.1#53(127.0.0.1) in 35 ms

64.in-addr.arpa.	86400	IN	NS	CHIA.ARIN.NET.
64.in-addr.arpa.	86400	IN	NS	DILL.ARIN.NET.
64.in-addr.arpa.	86400	IN	NS	BUCHU.ARIN.NET.
64.in-addr.arpa.	86400	IN	NS	HENNA.ARIN.NET.
64.in-addr.arpa.	86400	IN	NS	INDIGO.ARIN.NET.
64.in-addr.arpa.	86400	IN	NS	EPAZOTE.ARIN.NET.
64.in-addr.arpa.	86400	IN	NS	FIGWORT.ARIN.NET.
64.in-addr.arpa.	86400	IN	NS	GINSENG.ARIN.NET.
64.in-addr.arpa.	86400	IN	NS	arrowroot.ARIN.NET.
;; Received 241 bytes from 202.12.27.33#53(m.root-servers.net) in 235 ms

10.64.in-addr.arpa.	86400	IN	NS	ns.uunet.ca.
10.64.in-addr.arpa.	86400	IN	NS	ns2.uunet.ca.
10.64.in-addr.arpa.	86400	IN	NS	auth01.ns.uu.net.
;; Received 117 bytes from 192.5.6.32#53(CHIA.ARIN.NET) in 762 ms

157.10.64.in-addr.arpa.	43200	IN	NS	dialdns1.uu.net.
157.10.64.in-addr.arpa.	43200	IN	NS	dialdns2.uu.net.
;; Received 150 bytes from 142.77.1.1#53(ns.uunet.ca) in 317 ms

165.157.10.64.in-addr.arpa. 3600 IN	PTR	1Cust165.tnt4.ottawa.on.da.uu.net.
10.64.in-addr.arpa.	3600	IN	NS	dialdns1.uu.net.
10.64.in-addr.arpa.	3600	IN	NS	dialdns2.uu.net.
10.64.in-addr.arpa.	3600	IN	NS	dialdns200.ns.uu.net.
10.64.in-addr.arpa.	3600	IN	NS	dialdns210.ns.uu.net.
;; Received 190 bytes from 153.39.194.10#53(dialdns1.uu.net) in 940 ms


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


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