25 Apr
2006
25 Apr
'06
9:27 p.m.
Bogdan,
Thanks, I will analyze the traffic a bit closer and see if I can find
anyone sending corrupt messages then.
Lars Sundqvist
Bogdan-Andrei Iancu wrote:
Hi Lars,
openser automatically drops incoming messages less than 32 bytes - if
you wan to increase it, see the config.h, MIN_UDP_PACKET.
but not the keep alive packages may be the problem and you may have
indeed some broken sip messages.
regards,
bogdan
Lars Sundqvist wrote:
Sorry if it is obvious, but what does ALGs stand
for? and is there
any way this can be prevented or any way i can find out from where
these requests come?
When I do a tcpdump and view the result in ethereal I can see we are
getting some UDP packets (that do not get classified as SIP) to the
openser port.
These contain 2, 4 or 18 bytes with: 0a 0d, 00 00 00 00 or the string
"KEEP ALIVE MESSAGE"
I've only captured a small amount of data so these might only be a
small subset of the ones we actually receive (non-sip packets that is).
Could these packets be whats causing the errors in the log? and if
so, can i somehow prevent openser to try to parse them as SIP?
Thanks
Lars Sundqvist
Atle Samuelsen wrote:
Whild Whild Guess, but I bet itt+s some ALGs
that´s fucking up for
you..
-A
* Lars Sundqvist <lars.sundqvist(a)home.se> [060424 09:11]:
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Hello,
We have a few hundred users registered to a openser we are running
and everything works fine, however i get som error messages in the
logs I would like to get rid of...
//sbin/openser[28867]: ERROR: get_hdr_field: bad to header
/sbin/openser[28867]: ERROR: bad header field
/sbin/openser[28867]: ERROR: get_hdr_field: bad to header
/sbin/openser[28867]: ERROR: bad header field
/sbin/openser[28867]: ERROR:parse_from_header: bad from header
/sbin/openser[28867]: xl_get_from: ERROR cannot parse FROM header
/sbin/openser[28867]: ERROR: get_hdr_field: bad to header
/sbin/openser[28867]: ERROR: bad header field
/sbin/openser[28867]: xl_get_to: ERROR cannot parse TO header
/sbin/openser[28867]: [REGISTER] from [<null>] to [<null>]
/sbin/openser[28867]: ERROR: get_hdr_field: bad to header
/sbin/openser[28867]: ERROR: bad header field
/sbin/openser[28867]: ERROR:maxfwd:is_maxfwd_present : parsing
MAX_FORWARD header failed!
/sbin/openser[28867]: ERROR:parse_from_header: bad from header
/sbin/openser[28867]: insert_RR(): From parsing failed
/sbin/openser[28867]: record_route(): Error while inserting
Record-Route line
/sbin/openser[28867]: ERROR: get_hdr_field: bad to header
/sbin/openser[28867]: ERROR: bad header field
/sbin/openser[28867]: find_first_route: Error while parsing headers
/sbin/openser[28867]: analyzing REGISTER request
/sbin/openser[28867]: ERROR: get_hdr_field: bad to header
/sbin/openser[28867]: ERROR: bad header field
/sbin/openser[28867]: find_credentials(): Error while parsing headers
/sbin/openser[28867]: pre_auth(): Error while looking for credentials
/sbin/openser[28867]: ERROR: get_hdr_field: bad to header
/sbin/openser[28867]: ERROR: bad header field
/sbin/openser[28867]: ERROR: get_hdr_field: bad to header
/sbin/openser[28867]: ERROR: bad header field
/sbin/openser[28867]: ERROR: build_res_buf_from_sip_req: alas,
parse_headers failed
/sbin/openser[28867]: pre_auth(): Error while sending 400 reply
/
Anyone has a clue what I can do to debug this to find out where the
request are coming from or what can be done to stop the invalid(?)
requests from being processed and clutter my logs?
Thanks
Lars Sundqvist
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