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cisco 2524 router HELP. I can't ping my serial interface

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salbahe

MIS
Apr 24, 2006
9
US
i have 2 2524 connected together with a serial cable. i configure both serials on both routers but when i tried to ping my seial on locally on both routers i get a timeout.
Router#ping 10.2.1.1

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.2.1.1, timeout is 2 seconds
.....
Success rate is 0 percent (0/5)
Router#sh int s1
Serial1 is up, line protocol is up
Hardware is HD64570 with 5-in-1 module
Internet address is 10.2.1.1/24
MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec, rely 255/255, load 1/255
Encapsulation HDLC, loopback not set, keepalive set (10 sec)
Last input 00:00:06, output 00:00:06, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 16
Queueing strategy: weighted fair
Output queue: 0/1000/64/16 (size/max total/threshold/drops)
Conversations 0/2/256 (active/max active/max total)
Reserved Conversations 0/0 (allocated/max allocated)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
6927 packets input, 409794 bytes, 0 no buffer
Received 6927 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
6945 packets output, 409698 bytes, 0 underruns
0 output errors, 0 collisions, 5 interface resets
0 output buffer failures, 0 output buffers swapped out
60 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up
i checked the cable it seems fine. any suggestions?
 


this is the 2524 router
Router#sh ip route
Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, * - candidate default
U - per-user static route, o - ODR

Gateway of last resort is not set

C 192.168.30.0/24 is directly connected, Serial1
10.0.0.0/24 is subnetted, 1 subnets
C 10.7.1.0 is directly connected, Ethernet0
Router#
 
ping result of e0
Router#sh ip int e0
Ethernet0 is up, line protocol is up
Internet address is 10.7.1.26/24
Broadcast address is 255.255.255.255
Address determined by setup command
MTU is 1500 bytes
Helper address is not set
Directed broadcast forwarding is disabled
Outgoing access list is not set
Inbound access list is not set
Proxy ARP is enabled
Security level is default
Split horizon is enabled
ICMP redirects are always sent
ICMP unreachables are always sent
ICMP mask replies are never sent
IP fast switching is enabled
IP fast switching on the same interface is disabled
IP Fast switching turbo vector
IP multicast fast switching is enabled
IP multicast distributed fast switching is disabled
IP route-cache flags are Fast
Router Discovery is disabled
IP output packet accounting is disabled
IP access violation accounting is disabled
TCP/IP header compression is disabled
RTP/IP header compression is disabled
Probe proxy name replies are disabled
Policy routing is disabled
Network address translation is disabled
Web Cache Redirect is disabled
BGP Policy Mapping is disabled
Router#ping 10.7.1.26

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.7.1.26, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 4/4/8 ms
 
...i dont know what to say but....erase nvram and start over


CCNP,CCSP,MCSE,Sec+,Net+,A+...
 
I never saw the output of show controllers of the second router. If you have a DCE attached to both ends, interface and line prot would be up, but you could not ping. I guess make double sure that the serials in question both have ip addresses, are in the same subnet---I would actually do a 255.255.255.252 mask, and user ppp encapsulation. If you have DCE and DTE, and before you swap the cable, can you ping ethernet from both serials? One more thing before starting over---actually 2---try a static and a default route in BOTH routers (ip route 0.0.0.0 0.0.0.0 S0 or S1, whichever the outgoing interface is), and if that does not work, try a reload on both routers. If all this fails, erase start, reload, start over, in BOTH routers. Please keep us posted. It has to be a simple deal we are missing, but there's not much to miss! Later. Oh year---try switching the cable around, too.
Tim
 
Sorry joined this conversation a bit late, but is this the config of the Serial interfaces each end??

SMH-NY56-1601-WAN1#sh int s0
Serial0 is up, line protocol is up
Hardware is QUICC Serial
Internet address is 192.168.10.1/24
MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec, rely 255/255, load 1/255
Encapsulation HDLC, loopback not set, keepalive set (10 sec)
Last input 00:00:04, output 00:00:06, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0 (size/max/drops); Total output drops: 0
Queueing strategy: weighted fair
Output queue: 0/1000/64/0 (size/max total/threshold/drops)
Conversations 0/2/256 (active/max active/max total)
Reserved Conversations 0/0 (allocated/max allocated)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
6295 packets input, 175324 bytes, 0 no buffer
Received 6280 broadcasts, 0 runts, 0 giants, 0 throttles
2 input errors, 0 CRC, 1 frame, 0 overrun, 0 ignored, 1 abort
12545 packets output, 587087 bytes, 0 underruns
0 output errors, 0 collisions, 3017 interface resets
0 output buffer failures, 0 output buffers swapped out
5252 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up


Router#sh int s1
Serial1 is up, line protocol is up
Hardware is HD64570 with 5-in-1 module
Internet address is 192.168.30.1/24
MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec, rely 255/255, load 1/255
Encapsulation HDLC, loopback not set, keepalive set (10 sec)
Last input 00:00:02, output 00:00:06, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: weighted fair
Output queue: 0/1000/64/0 (size/max total/threshold/drops)
Conversations 0/1/256 (active/max active/max total)
Reserved Conversations 0/0 (allocated/max allocated)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
6454 packets input, 414323 bytes, 0 no buffer
Received 6449 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
5504 packets output, 127525 bytes, 0 underruns
0 output errors, 0 collisions, 2 interface resets
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up


If it is check the ip addresses, as they are not in the same network. Suggest trying Tim's advice and changing the IP Addresses and change to a 252 mask.
 
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