OT: Client DNS resolver crashing on NAPTR lookup

Benoit Panizzon via sr-users <[email protected]>
Newsgroups gmane.comp.voip.ser
Organization ImproWare AG
Message-ID <[email protected]>
Hi List

I hope it is OK to post a slightly off topic question. I have not found
any similar reports via google.

During testing of our development platform, I found two independent
clients whose resolver process crashes randomly, when performing NAPTR
lookups.

Mitel/Aastra 68XXi Phones with Firmware >= 6.4 up to most recent.

Inalp/Patton SNXX (Trinity OS) SIP Gateway with Firmware >= 3.14.X up to
most recent.

Both vendors reply they have no prior reports of this issue.

The hostname used as registrar / proxy points to a NAPTR entry, which
in turn points to 3 SRV entries für SIP+D2T, SIP+D2U, SIPS+D2T

Each SRV entry then points to 4 IP Addresses (2x ipv4 and 2x ipv6)

So quite a complex lookup and quite large replies. Anyone else observed
this issue?

When using a hostname that merely points to the A and AAAA records, no
crashes.

Mit freundlichen Grüssen

-Benoît Panizzon-
-- 
I m p r o W a r e   A G    -    Leiter Commerce Kunden
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