I use pppd and find sometimes the connection is closed by server, how can i fix it? following is the print info, thanks! pppd options in effect: debug # (from command line) kdebug 0 # (from command line) -detach # (from command line) dump # (from command line) lock # (from command line) connect /usr/ppp-on-dialer # (from command line) disconnect /usr/ppp-off-command # (from command line) escape ff # (from command line) asyncmap 20a0000 # (from command line) noipdefault # (from command line) defaultroute # (from command line) netmask 255.255.255.0 # (from command line) : # (from command line) Serial connection established. using channel 7 Using interface ppp0 Connect: ppp0 <--> /dev/ttyS1 mtu = 1500, accm = 4294967295, pcomp = 0, accomp = 0 tty_recv_config: mru = 1500, asyncmap = 4294967295, pcomp = 1, accomp = 1 sent [LCP ConfReq id=0x1 <asyncmap 0x20a0000> <magic 0x5d93a4c4> <pcomp> <accomp>] rcvd 24 rcvd [LCP ConfAck id=0x1 <asyncmap 0x20a0000> <magic 0x5d93a4c4> <pcomp> <accomp>] rcvd 29 rcvd [LCP ConfReq id=0x3 <asyncmap 0xa0000> <pcomp> <accomp> <magic 0x93cecf54> <auth chap MD5>] sent [LCP ConfRej id=0x3 <auth chap MD5>] rcvd 28 rcvd [LCP ConfReq id=0x5 <asyncmap 0xa0000> <pcomp> <accomp> <magic 0x93cecf54> <auth pap>] sent [LCP ConfRej id=0x5 <auth pap>] rcvd 24 rcvd [LCP ConfReq id=0x7 <asyncmap 0xa0000> <pcomp> <accomp> <magic 0x93cecf54>] sent [LCP ConfAck id=0x7 <asyncmap 0xa0000> <pcomp> <accomp> <magic 0x93cecf54>] mtu = 1500, accm = 655360, pcomp = 1, accomp = 1 tty_recv_config: mru = 1500, asyncmap = 34209792, pcomp = 1, accomp = 1 sent [IPCP ConfReq id=0x1 <addr 0.0.0.0> <compress VJ 0f 01>] sent [CCP ConfReq id=0x1 <deflate 15> <deflate(old#) 15> <bsd v1 15>] rcvd 14 rcvd [IPCP ConfRej id=0x1 <compress VJ 0f 01>] sent [IPCP ConfReq id=0x2 <addr 0.0.0.0>] rcvd 25 rcvd [LCP ProtRej id=0x8 80 fd 01 01 00 0f 1a 04 78 00 18 04 78 00 15 03 2f] rcvd 14 rcvd [IPCP ConfReq id=0x1 <addr 192.168.254.254>] sent [IPCP CodfAck id=0x1 <adrr 192.168.254.254>] sent [IPCP ConfReq id=0x2 <addr 0.0.0.0>] rcvd 14 rcvd [IPCP ConfNak id=0x2 <addr 10.49.18.78>] sent [IPCP ConfReq id=0x3 <addr 10.49.18.78>] rcvd 14 rcvd [IPCP ConfAck id=0x3 <addr 10.49.18.78>] local IP address 10.49.18.78 remote IP address 192.168.254.254 rcvd 8 rcvd [LCP TermReq id=0x9] LCP terminated by peer mtu = 1500, accm = 4294967295, pcomp = 0, accomp = 0 tty_recv_config: mru = 1500, asyncmap = 34209792, pcomp = 1, accomp = 1 sent [LCP TermAck id=0x9] Connection terminated. - To unsubscribe from this list: send the line "unsubscribe linux-ppp" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html