This is the serial cable I am using. Yes I am connecting it to another router. I have tried both ways but currently have the DCE end plugged in to the port I suspect is not working. I have narrowed it down to this port because when I use the serial port on the second router connected to a third, it works.
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Hi. I just recently bought a new Cisco 2611 for my home lab and am having trouble getting the serial port to work. I have tried multiple things such as erase startup, switching the cables to rule them out, and even changing IP addresses but none worked. The port may be dead but I thought I would see if anyone could see anything else to try before I replaced it. Here is the output I am getting: Router#show controllers Interface Serial0/0 Hardware is PowerQUICC MPC860 DCE 530, clock rate 64000 idb at 0x84C4310C, driver data structure at 0x84C4A830 SCC Registers: General [GSMR]=0x2:0x00000030, Protocol-specific [PSMR]=0x8 Events [SCCE]=0x0300, Mask [SCCM]=0x001F, Status [SCCS]=0x03 Transmit on Demand [TODR]=0x0, Data Sync [DSR]=0x7E7E Interrupt Registers: Config [CICR]=0x00367F80, Pending [CIPR]=0x00000000 Mask [CIMR]=0x40204000, In-srv [CISR]=0x00000000 Command register [CR]=0x600 Port A [PADIR]=0x0100, [PAPAR]=0xFFFF [PAODR]=0x0000, [PADAT]=0xF6FF Port B [PBDIR]=0x0180F, [PBPAR]=0x0000E [PBODR]=0x00000, [PBDAT]=0x3E7FD Port C [PCDIR]=0x00C, [PCPAR]=0x000 [PCSO]=0x020, [PCDAT]=0xFF2, [PCINT]=0x00F Receive Ring rmd(680126B0): status 9000 length 60C address 7CEAD24 rmd(680126B8): status 9000 length 60C address 7CEA6A4 rmd(680126C0): status 9000 length 60C address 7CEA024 rmd(680126C8): status 9000 length 60C address 7D09764 Router#show int serial0/0 Serial0/0 is down, line protocol is down Hardware is PowerQUICC Serial Internet address is 192.168.1.2/24 MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation HDLC, loopback not set Keepalive set (10 sec) Last input never, output never, output hang never Last clearing of "show interface" counters 00:31:45 Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 0 packets input, 0 bytes, 0 no buffer Received 0 broadcasts, 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort 0 packets output, 0 bytes, 0 underruns 0 output errors, 0 collisions, 47 interface resets 0 unknown protocol drops 0 output buffer failures, 0 output buffers swapped out 0 carrier transitions DCD=up DSR=up DTR=down RTS=down CTS=up Router#debug serial int Serial network interface debugging is on Router# *Mar 1 01:15:50.410: Serial0/0: attempting to restart *Mar 1 01:16:20.412: Serial0/0: attempting to restart *Mar 1 01:16:50.413: Serial0/0: attempting to restart *Mar 1 01:17:20.414: Serial0/0: attempting to restart *Mar 1 01:17:50.415: Serial0/0: attempting to restart *Mar 1 01:18:20.416: Serial0/0: attempting to restart *Mar 1 01:18:50.417: Serial0/0: attempting to restart *Mar 1 01:19:20.419: Serial0/0: attempting to restart *Mar 1 01:19:50.420: Serial0/0: attempting to restart *Mar 1 01:20:20.421: Serial0/0: attempting to restart *Mar 1 01:20:50.450: Serial0/0: attempting to restart Router#show run Building configuration... Current configuration : 733 bytes ! version 12.4 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname Router ! boot-start-marker boot-end-marker ! ! no aaa new-model no network-clock-participate slot 1 no network-clock-participate wic 0 ip cef ! ! ! ! ip auth-proxy max-nodata-conns 3 ip admission max-nodata-conns 3 ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! interface FastEthernet0/0 ip address 10.0.0.2 255.255.255.0 duplex auto speed auto ! interface Serial0/0 ip address 192.168.1.2 255.255.255.0 no fair-queue clock rate 64000 ! ip forward-protocol nd ! ! ip http server no ip http secure-server ! ! ! ! control-plane ! ! ! ! ! ! ! ! ! ! line con 0 line aux 0 line vty 0 4 ! ! end Any help is greatly appreciated! Thanks!
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