Cannot find gateway

Sun Apr  1 14:19:50 2012 Data Channel Encrypt: Using 160 bit message hash 'SHA1' for HMAC authentication
Sun Apr  1 14:19:50 2012 Data Channel Decrypt: Using 160 bit message hash 'SHA1' for HMAC authentication
Sun Apr  1 14:19:50 2012 Control Channel: TLSv1, cipher TLSv1/SSLv3 DHE-RSA-AES256-SHA, 1024 bit RSA
Sun Apr  1 14:19:50 2012 [tuxvista] Peer Connection Initiated with [AF_INET]216.231.135.240:137
Sun Apr  1 14:19:52 2012 SENT CONTROL [tuxvista]: 'PUSH_REQUEST' (status=1)
Sun Apr  1 14:19:53 2012 PUSH: Received control message: 'PUSH_REPLY,redirect-gateway def1,route 192.168.6.0 255.255.255.0,topology net30,ping 10,ping-restart 1200,ifconfig 192.168.6.14 192.168.6.13'
Sun Apr  1 14:19:53 2012 OPTIONS IMPORT: timers and/or timeouts modified
Sun Apr  1 14:19:53 2012 OPTIONS IMPORT: --ifconfig/up options modified
Sun Apr  1 14:19:53 2012 OPTIONS IMPORT: route options modified
Sun Apr  1 14:19:53 2012 ROUTE: default_gateway=UNDEF --< I got this status when on 3G
Sun Apr  1 14:19:53 2012 TUN/TAP device tun0 opened
Sun Apr  1 14:19:53 2012 TUN/TAP TX queue length set to 100
Sun Apr  1 14:19:53 2012 /sbin/ifconfig tun0 192.168.6.14 pointopoint 192.168.6.13 mtu 1500
Sun Apr  1 14:19:53 2012 NOTE: unable to redirect default gateway -- Cannot read current default gateway from system
Sun Apr  1 14:19:53 2012 /sbin/route add -net 192.168.6.0 netmask 255.255.255.0 gw 192.168.6.13
Sun Apr  1 14:19:53 2012 Initialization Sequence Completed
Sun Apr  1 14:20:44 2012 event_wait : Interrupted system call (code=4)
Sun Apr  1 14:20:44 2012 TCP/UDP: Closing socket
Sun Apr  1 14:20:44 2012 /sbin/route del -net 192.168.6.0 netmask 255.255.255.0
Sun Apr  1 14:20:44 2012 Closing TUN/TAP interface
Sun Apr  1 14:20:44 2012 /sbin/ifconfig tun0 0.0.0.0
Sun Apr  1 14:20:44 2012 SIGINT[hard,] received, process exiting