这是我的补充部分![office] Now create configuration... Current configuration ! version 1.74 sysname office undo pos-server addr-switch firewall disable undo aaa-enable ! interface Aux0 async mode flow flow-control none link-protocol ppp ! interface Ethernet0 ip address XXX.XXX.XXX.XXX XXX.XXX.XXX.XXX ! interface Serial0 clock DTECLK1 link-protocol hdlc ip address XXX.XXX.XXX.XXX XXX.XXX.XXX.XXX ! interface Serial1 link-protocol ppp ! quit ip route-static XXX.XXX.XXX.XXX Serial 0 preference 60 ip route-static XXX.XXX.XXX.XXX XXX.XXX.XXX.XXX preference 60 ! return# sysname idc# cpu-usage cycle 1min#radius scheme system#domain system#local-user service-type telnet terminal level 3 service-type ftp#interface Aux0 async mode flow#interface Ethernet0/0 ip address XXX.XXX.XXX.XXX XXX.XXX.XXX.XXX#interface Ethernet0/1#interface Serial0/0 link-protocol hdlc ip address XXX.XXX.XXX.XXX XXX.XXX.XXX.XXX#interface NULL0## ip route-static X.X.X.X.X.X.X.X.X Serial 0/0 preference 50 ip route-static X.X.X.X X.X.X.X.X.X.X.X.X.X.X.X. preference 60 ip route-static X.X.X.X.X X.X.X.X.X.X preference 60 ip route-static X.X.X.X.X.X.X.X.X.X preference 60 ip route-static X.X.X.X.X.X.X.X.X.X.X..X.X.X preference 60##user-interface con 0user-interface aux 0user-interface vty 0 4 authentication-mode scheme#return现在的状况是.物理上线路是ip的,但是协议上确实down 的,结果如下:[office] Serial0 current state:up, line protocol current state:down The Maximum Transmit Unit is 1500 Internet Address is X.X.X.X physical layer is synchronous interface is DTE, clock is DTECLK1, cable type is V35 Link-protocol is HDLC, keepalive set (10 sec) Input keepalive packages:473, Output keepalive packages:24274 Input queue : (size/max/drops) 0/50/0 FIFO queueing: FIFO (Outbound queue:Size/Length/Discards) FIFO: 0/75/0 Last clearing of counters: 22:17:04 Jan 2 1998 Last 5 minutes input rate 0.00 bytes/sec, 0.00 packets/sec Last 5 minutes output rate 2.20 bytes/sec, 0.10 packets/sec Input: 1298 packets, 112706 bytes 0 broadcasts, 0 multicasts 1 errors, 0 runts, 0 giants 0 CRC,0 frame errors, 0 overrunners 1 aborted sequences 0 no buffers 0 packets with dribble condition detected Output:9426 packets, 292182 bytes 0 broadcasts, 0 multicasts 0 errors, 0 underruns, 0 collisions 0 packets had been deferred DCD=UP DTR=UP DSR=UP RTS=UP CTS=UPDIS INT S0/0Serial0/0 current state :UP Line protocol current state :DOWNDescription : Serial0/0 Interface The Maximum Transmit Unit is 1500, Hold timer is 10(sec) Internet Address is X.X.X.XLink layer protocol is HDLCOutput queue : (Urgent queuing : Size/Length/Discards) 0/50/0Output queue : (Protocol queuing : Size/Length/Discards) 0/500/0 Output queue : (FIFO queuing : Size/Length/Discards) 0/75/0Physical layer is synchronous,Baudrate is 64000 bpsInterface is DCE, Cable type is V35Last clearing of counters: Never Last 300 seconds input rate 65.66 bytes/sec, 525 bits/sec, 0.00 packets/sec Last 300 seconds output rate 2.20 bytes/sec, 17 bits/sec, 0.10 packets/sec Input: 0 packets, 5102125 bytes 0 broadcasts, 0 multicasts 14068 errors, 0 runts, 0 giants 315 CRC, 6 align errors, 0 overruns 0 dribbles, 0 aborts, 0 no buffers 13747 frame errors Output:7745 packets, 170390 bytes 0 errors, 0 underruns, 0 collisions 0 deferred DCD=UP DTR=UP DSR=UP RTS=UP CTS=UP