rfcomm bluetooth problems and solution

I tried several times to connect my Suse 11.3-64 to the internet thrue Bluetooth/rfcomm, and came every timeto this problem : when activating the connection :
su -c ‘rfcomm release 0;rfcomm bind 0 00:21:FE:xx:xx:xx sdptool search --bdaddr=00:21:FE:xx:xx:xx dun | grep -i Channel | cut -c14-14 && wvdial nokia-bluetooth-blau’
Password:
→ WvDial: Internet dialer version 1.60
→ Cannot get information for serial port.
→ Initializing modem.
→ Sending: ATZ
ATZ
OK
→ Sending: ATQ0 V1 E1 S0=0 &C1 &D2
ATQ0 V1 E1 S0=0 &C1 &D2
OK
→ Sending: AT+CGDCONT=1,“IP”,“internet.eplus.de
AT+CGDCONT=1,“IP”,“internet.eplus.de
OK
→ Modem initialized.
→ Sending: ATDT99#
→ Waiting for carrier.
ATDT
99#
CONNECT
~[7f]}#@!}!} } }2}#}$@#}!}$}%}"}&} }*} } g}%~
→ Carrier detected. Starting PPP immediately.
→ Starting pppd at Sun Aug 29 11:23:41 2010
→ Pid of pppd: 7354
→ pppd: O[7f]
→ Using interface ppp0
→ pppd: O[7f]
→ pppd: O[7f]
→ pppd: O[7f]
→ local IP address 10.164.20.191
→ pppd: O[7f]
→ remote IP address 10.6.6.6
→ pppd: O[7f]
→ primary DNS address 212.23.97.2
→ pppd: O[7f]
→ secondary DNS address 212.23.97.3
→ pppd: O[7f]
→ Script /etc/ppp/ip-up run successful
→ Default route Ok.
→ warning, no nameserver found /etc/resolv.conf
→ Nameserver (DNS) failure, the connection may not work.
→ Connected… Press Ctrl-C to disconnect
→ pppd: O[7f]

the only way to solve this routing/DNS problem was to totally deactive NetworkManager in Yast2 . The routing in /resolv.conf is functionning then.

Antoine