bash-3.1$ su
Password: 
bash-3.1# pppd call gsm
Starting Sierra Wireless GSM connect script...

Setting the abort string

Initializing modem

Setting APN

Dialing...
Serial connection established.
using channel 1
Using interface ppp0
Connect: ppp0 <--> /dev/ttyUSB0
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x62adb860> <pcomp> <accomp>]
rcvd [LCP ConfReq id=0x0 <asyncmap 0x0> <auth chap MD5> <magic 0xe9b78c57> <pcomp> <accomp>]
sent [LCP ConfAck id=0x0 <asyncmap 0x0> <auth chap MD5> <magic 0xe9b78c57> <pcomp> <accomp>]
rcvd [LCP ConfAck id=0x1 <asyncmap 0x0> <magic 0x62adb860> <pcomp> <accomp>]
sent [LCP EchoReq id=0x0 magic=0x62adb860]
rcvd [LCP DiscReq id=0x1 magic=0xe9b78c57]
rcvd [CHAP Challenge id=0x1 <5045686ac2bd9ee34c80bcca90658b1d>, name = "UMTS_CHAP_SRVR"]
sent [CHAP Response id=0x1 <94b8ad649c96087749d3b946761ac191>, name = "ISP@CINGULARGPRS.COM"]
rcvd [LCP EchoRep id=0x0 magic=0xe9b78c57 62 ad b8 60]
rcvd [CHAP Success id=0x1 ""]
CHAP authentication succeeded
CHAP authentication succeeded
sent [CCP ConfReq id=0x1 <deflate 15> <deflate(old#) 15> <bsd v1 15>]
sent [IPCP ConfReq id=0x1 <compress VJ 0f 01> <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns3 0.0.0.0>]
rcvd [LCP ProtRej id=0x2 80 fd 01 01 00 0f 1a 04 78 00 18 04 78 00 15 03 2f]
Protocol-Reject for 'Compression Control Protocol' (0x80fd) received
rcvd [IPCP ConfNak id=0x1 <ms-dns1 10.11.12.13> <ms-dns3 10.11.12.14>]
sent [IPCP ConfReq id=0x2 <compress VJ 0f 01> <addr 0.0.0.0> <ms-dns1 10.11.12.13> <ms-dns3 10.11.12.14>]
rcvd [IPCP ConfNak id=0x2 <ms-dns1 10.11.12.13> <ms-dns3 10.11.12.14>]
sent [IPCP ConfReq id=0x3 <compress VJ 0f 01> <addr 0.0.0.0> <ms-dns1 10.11.12.13> <ms-dns3 10.11.12.14>]
rcvd [IPCP ConfReq id=0x0]
sent [IPCP ConfNak id=0x0 <addr 0.0.0.0>]
rcvd [IPCP ConfRej id=0x3 <compress VJ 0f 01>]
sent [IPCP ConfReq id=0x4 <addr 0.0.0.0> <ms-dns1 10.11.12.13> <ms-dns3 10.11.12.14>]
rcvd [IPCP ConfNak id=0x4 <addr 166.214.193.167> <ms-dns1 66.102.163.232> <ms-dns3 66.209.10.202>]
sent [IPCP ConfReq id=0x5 <addr 166.214.193.167> <ms-dns1 66.102.163.232> <ms-dns3 66.209.10.202>]
rcvd [IPCP ConfAck id=0x5 <addr 166.214.193.167> <ms-dns1 66.102.163.232> <ms-dns3 66.209.10.202>]
rcvd [IPCP ConfReq id=0x1]
sent [IPCP ConfAck id=0x1]
Could not determine remote IP address: defaulting to 10.64.64.64
Cannot determine ethernet address for proxy ARP
local  IP address 166.214.193.167
remote IP address 10.64.64.64
primary   DNS address 66.102.163.232
secondary DNS address 66.209.10.202