Hello,
I have been having a problem with the GnuGK interaction with our
Cisco gateway. The problem is bad non standard data in the ACF message
returned by the GnuGK causing a parsing error when the message is received
by the Cisco, the relevant debug trace is below:
May 14 10:40:43.354: RAS INCOMING ENCODE BUFFER::=
2B80203940050040D5A6090306B80
07740B5000012078000000E8001C31400C001000B8001F80100010001000100
May 14 10:40:43.358:
May 14 10:40:43.358: RAS INCOMING PDU ::=
value RasMessage ::= admissionConfirm :
{
requestSeqNum 8250
bandWidth 1280
callModel gatekeeperRouted : NULL
destCallSignalAddress ipAddress :
{
ip 'D5A60903'H
port 1720
}
irrFrequency 120
nonStandardData
{
nonStandardIdentifier h221NonStandard :
{
t35CountryCode 181
t35Extension 0
manufacturerCode 18
}
data '8000000E8001C3'H
}
willRespondToIRR FALSE
uuiesRequested
{
setup FALSE
callProceeding FALSE
connect FALSE
alerting FALSE
information FALSE
releaseComplete FALSE
facility FALSE
progress FALSE
empty FALSE
status FALSE
statusInquiry FALSE
setupAcknowledge FALSE
notify FALSE
}
}
May 14 10:40:43.358: H225 NONSTD INCOMING ENCODE BUFFER::= 8000000E8001C3
May 14 10:40:43.358: fld 'gtd'(type:_choice_ACFnnStndrdInf_gtd) of
ACFnonStandardInfo DEC_ERR=-13
May 14 10:40:43.358: RAS OUTGOING PDU ::=
value RasMessage ::= unknownMessageResponse :
{
requestSeqNum 8250
}
After this sequence the call then fails. The relevant code in GnuGK just
copies the non standard data from the incoming ARQ to the outgoing ACF:
confirm.m_requestSeqNum = request.m_requestSeqNum;
if (non_standard) {
CopyNonStandardData(request, confirm);
}
return m_msg->m_replyRAS;
in RasSrv.cxx. I've fixed this temporarily by preventing the code from
copying the non standard data into the ACF and everything works ok. I was
wondering if anybody else has had this problem?
Cheers,
Ian Campbell
Band-X Ltd.
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