FORMERR on packet received from Forwarder

[Levi Pederson]

All,

I'm in an odd situation.  I have an authoritative DNS server that is
supposed to forward any unknowns to a specific upstream server.  These
requests seem to process just fine till the response packet gets back to
the system.  Here is the resolver.log output specifics omitted.


************************************************************************************************
16-Jun-2014 09:53:54.002 fctx 0x7f92322d5010(QUERIED-HOSTNAME/NAPTR'):
cancelquery
16-Jun-2014 09:53:54.002 fctx 0x7f92322d5010(QUERIED-HOSTNAME/NAPTR'):
add_bad
16-Jun-2014 09:53:54.002 fctx 0x7f92322d5010(QUERIED-HOSTNAME/NAPTR'): try
16-Jun-2014 09:53:54.002 fctx 0x7f92322d5010(QUERIED-HOSTNAME/NAPTR'):
cancelqueries
16-Jun-2014 09:53:54.002 fctx 0x7f92322d5010(QUERIED-HOSTNAME/NAPTR'):
getaddresses
16-Jun-2014 09:53:54.002 fctx 0x7f92322d5010(QUERIED-HOSTNAME/NAPTR'): no
addresses
16-Jun-2014 09:53:54.002 fctx 0x7f92322d5010(QUERIED-HOSTNAME/NAPTR'): done
16-Jun-2014 09:53:54.002 fctx 0x7f92322d5010(QUERIED-HOSTNAME/NAPTR'):
stopeverything
16-Jun-2014 09:53:54.002 fctx 0x7f92322d5010(QUERIED-HOSTNAME/NAPTR'):
cancelqueries
16-Jun-2014 09:53:54.002 fctx 0x7f92322d5010(QUERIED-HOSTNAME/NAPTR'):
sendevents
16-Jun-2014 09:53:54.003 fetch 0x7f92383471b0 (fctx
0x7f92322d5010(QUERIED-HOSTNAME/NAPTR)): destroyfetch
16-Jun-2014 09:53:54.003 fctx 0x7f92322d5010(QUERIED-HOSTNAME/NAPTR'):
shutdown
16-Jun-2014 09:53:54.003 fctx 0x7f92322d5010(QUERIED-HOSTNAME/NAPTR'):
doshutdown
16-Jun-2014 09:53:54.003 fctx 0x7f92322d5010(QUERIED-HOSTNAME/NAPTR'):
stopeverything
16-Jun-2014 09:53:54.003 fctx 0x7f92322d5010(QUERIED-HOSTNAME/NAPTR'):
cancelqueries
16-Jun-2014 09:53:54.003 fctx 0x7f92322d5010(QUERIED-HOSTNAME/NAPTR'):
unlink
16-Jun-2014 09:53:54.003 fctx 0x7f92322d5010(QUERIED-HOSTNAME/NAPTR'):
destroy
16-Jun-2014 09:53:59.611 createfetch: QUERIED-HOSTNAME NAPTR
16-Jun-2014 09:53:59.611 fctx 0x7f92321d1010(QUERIED-HOSTNAME/NAPTR'):
create
16-Jun-2014 09:53:59.611 log_ns_ttl: fctx 0x7f92321d1010: fctx_create:
QUERIED-HOSTNAME (in 'HOSTNAME'?): 1 85178
16-Jun-2014 09:53:59.611 fctx 0x7f92321d1010(QUERIED-HOSTNAME/NAPTR'): join
16-Jun-2014 09:53:59.611 fetch 0x7f92383471b0 (fctx
0x7f92321d1010(QUERIED-HOSTNAME/NAPTR)): created
16-Jun-2014 09:53:59.611 fctx 0x7f92321d1010(QUERIED-HOSTNAME/NAPTR'): start
16-Jun-2014 09:53:59.611 fctx 0x7f92321d1010(QUERIED-HOSTNAME/NAPTR'): try
16-Jun-2014 09:53:59.611 fctx 0x7f92321d1010(QUERIED-HOSTNAME/NAPTR'):
cancelqueries
16-Jun-2014 09:53:59.611 fctx 0x7f92321d1010(QUERIED-HOSTNAME/NAPTR'):
getaddresses
16-Jun-2014 09:53:59.611 fctx 0x7f92321d1010(QUERIED-HOSTNAME/NAPTR'): query
16-Jun-2014 09:53:59.611 resquery 0x7f92321d8010 (fctx
0x7f92321d1010(QUERIED-HOSTNAME/NAPTR)): send
16-Jun-2014 09:53:59.612 resquery 0x7f92321d8010 (fctx
0x7f92321d1010(QUERIED-HOSTNAME/NAPTR)): sent
16-Jun-2014 09:53:59.612 resquery 0x7f92321d8010 (fctx
0x7f92321d1010(QUERIED-HOSTNAME/NAPTR)): udpconnected
16-Jun-2014 09:53:59.612 resquery 0x7f92321d8010 (fctx
0x7f92321d1010(QUERIED-HOSTNAME/NAPTR)): senddone
16-Jun-2014 09:53:59.683 resquery 0x7f92321d8010 (fctx
0x7f92321d1010(QUERIED-HOSTNAME/NAPTR)): response
16-Jun-2014 09:53:59.683 received packet:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id:  45393
;; flags: qr rd; QUESTION: 1, ANSWER: 0, AUTHORITY: 2, ADDITIONAL: 3
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags: do; udp: 4096
;; QUESTION SECTION:
;QUERIED-HOSTNAME.        IN NAPTR

;; AUTHORITY SECTION:
CORRECT-UPSTREAMREAPONSE 86400 IN NS      CORRECT-UPSTREAMREAPONSE
CORRECT-UPSTREAMREAPONSE 86400 IN NS      CORRECT-UPSTREAMREAPONSE

;; ADDITIONAL SECTION:
CORRECT-UPSTREAMREAPONSE 86400 IN A CORRECT-Resolved-IP
CORRECT-UPSTREAMREAPONSE 86400 IN A CORRECT-Resolved-IP


16-Jun-2014 09:53:59.683 fctx 0x7f92321d1010(QUERIED-HOSTNAME/NAPTR'):
noanswer_response
16-Jun-2014 09:53:59.683 log_ns_ttl: fctx 0x7f92321d1010:
noanswer_response: QUERIED-HOSTNAME (in 'HOSTNAME'?): 1 85178
16-Jun-2014 09:53:59.683 fctx 0x7f92321d1010: trimming ttl of HOSTNAME/NS
for QUERIED-HOSTNAME/NAPTR: 86400 -> 85178
16-Jun-2014 09:53:59.683 DNS format error from 65.119.117.13#53 resolving
QUERIED-HOSTNAME/NAPTR for client 66.171.30.193#15000: non-improving
referral
16-Jun-2014 09:53:59.683 fctx 0x7f92321d1010(QUERIED-HOSTNAME/NAPTR'):
cancelquery
16-Jun-2014 09:53:59.683 fctx 0x7f92321d1010(QUERIED-HOSTNAME/NAPTR'):
add_bad
16-Jun-2014 09:53:59.683 fctx 0x7f92321d1010(QUERIED-HOSTNAME/NAPTR'): try
16-Jun-2014 09:53:59.683 fctx 0x7f92321d1010(QUERIED-HOSTNAME/NAPTR'): query

The big thing to NOTE is we're recieving the UPSTREAM packet back with the
correct information!  But alas our system says there is a formatting error.
 Does anyone have a quick response to this odd issue?

Thank you,


*Levi Pederson*
Mankato Networks LLC
cell | 612.481.0769
work | 612.787.7392
levipederson at mankatonetworks.net
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