Hello, I've a little problem with my gprs.If I try to connect to ma GPRS ISP fall down after phone make gprs call . message out is:

Apr 21 16:55:31 notebook chat[1068]: expect (OK)
Apr 21 16:55:31 notebook chat[1068]: ^M
Apr 21 16:55:31 notebook chat[1068]: AT+CGQMIN=1,2,4,3,6,31^M^M
Apr 21 16:55:31 notebook chat[1068]: OK
Apr 21 16:55:31 notebook chat[1068]: -- got it
Apr 21 16:55:31 notebook chat[1068]: send (AT+CGATT=1^M)
Apr 21 16:55:31 notebook chat[1068]: expect (OK)
Apr 21 16:55:31 notebook chat[1068]: ^M
Apr 21 16:55:32 notebook chat[1068]: AT+CGATT=1^M^M
Apr 21 16:55:32 notebook chat[1068]: OK
Apr 21 16:55:32 notebook chat[1068]: -- got it
Apr 21 16:55:32 notebook chat[1068]: send (ATD*99#^M)
Apr 21 16:55:32 notebook chat[1068]: expect (CONNECT)
Apr 21 16:55:32 notebook chat[1068]: ^M
Apr 21 16:55:32 notebook chat[1068]: ATD*99#^M^M
Apr 21 16:55:32 notebook chat[1068]: CONNECT
Apr 21 16:55:32 notebook chat[1068]: -- got it
Apr 21 16:55:32 notebook chat[1068]: send (^M)
Apr 21 16:55:32 notebook pppd[1052]: Serial connection established.
Apr 21 16:55:32 notebook pppd[1052]: Using interface ppp0
Apr 21 16:55:32 notebook pppd[1052]: Connect: ppp0 <--> /dev/usb/tts/0
Apr 21 16:55:33 notebook pppd[1052]: Couldn't set pass-filter in kernel: Invalid argument
Apr 21 16:55:37 notebook pppd[1052]: Could not determine local IP address
Apr 21 16:55:38 notebook pppd[1052]: Connection terminated.
Apr 21 16:55:38 notebook pppd[1052]: Connect time 0.1 minutes.
Apr 21 16:55:38 notebook pppd[1052]: Sent 147 bytes, received 104 bytes.
Apr 21 16:55:38 notebook chat[1212]: send (\K^M)
Apr 21 16:55:38 notebook chat[1212]: send (+++ATH^M)
Apr 21 16:55:38 notebook pppd[1052]: Serial link disconnected.
Apr 21 16:55:39 notebook pppd[1052]: Exit.



Anyone know what mean 'Couldn't set pass-filter in kernel: Invalid argument
'. There is any kernel module bad compiled? And why 'Could not determine local IP address'?

please help me

See if this doc is any help: Configuring chat/pppd

In particular, pay attention to the defaultroute and replacedefaultroute parts.

Tanks for your reply! but the error is the same.... I had checked my configuration script and nothing is wrong????