What cable I need to connect 2600 to 2500 router? 4

[ejeangilles]

I have a lab that I'm doing some testing on with static routing. I have 3 2500's and 1 2600. I connected all my 2500's via dte/dce cables but I'm not sure how to connect my 2600 to my 2500. My 2600 has a fast ethernet connection. Can I plug a crossover cable from my 2600 into the transceiver port on my 2500? Or do I need a serial card to put in my 2600?

 

[burtsbees]

I have been super busy---will try this week yet...

Burt

 

[GlennComiskey]

jneiberger,

Do not suspect serial interfaces on C2611/C2620 as when connected together both report in-bound/out-bound traffic, i.e. both transmitters/receivers working. This is supported by the fact the C2503 will receive routing updates from either router, i.e. their transmitters working. This also indicates that the C2503 receivers, both Serial 0 and Serial 1, are working as it will update regardless of which serial interface is used. There is a possibilty that both serial interface transmitters on C2503 are broken, but I have no way of determining this.

Currently have clock rate set at 2000000, though have tried several different values. Normally have clock rate set on C2611 and connected to DCE end of a DCE/DTE cable (to allow back-to-back connection) as move the DTE end between C2620/C2503. Have config'd C2503 as DCE and set clock rate, but makes no difference.

Burt, hopefully hear from you later.
Glenn

 

[jneiberger]

Ok, forget routing updates or anything like that. That's making this more complicated than it needs to be. Dismantle the whole thing and then connect the 2503 to anything else. Configure nothing more than an IP address on each side and try to ping across the link. Does it work?

From what I read earlier, it sounds like it does not work. If that doesn't work, there are only a handful of possible causes:

1. Misconfigured IP addressing
2. Bad cable
3. Bad interface hardware

Trying doing something simpler. Do a simple back-to-back between the 2503 and another router. Can you ping from one to the other successfully?

 

[burtsbees]

Moving the office this week...sorry people...

Burt

 

[GlennComiskey]

jneiberger,

Have reset routers and created basic setup. As you'll see from details below not able to ping to/from the C2503 router. Tried with both serial interfaces on C2503. Same response/output when using C2611 rather than C2620.

When using C2611/C2620 (details not shown below) I am able to ping between the routers. Therefore can only assume that both transmitters on the C2503 are not functioning correctly, even though they both report packets as being sent out.

Burt,

Presume there is little to be gained from you configuring a C2600 and C2500 together, but if you do please post both routers config's just so I can satisfy myself I've not been doing something wron.

Thanks to you both for your help and patiences. All the best.
------------------------------------------------------------
C2620#show run
Building configuration...

Current configuration:
!
version 12.0
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname C2620
!
enable secret 5 $1$piko$206K96vv/wzg.g1K8XJuN.
!
ip subnet-zero
no ip routing
!
interface FastEthernet0/0
no ip address
no ip directed-broadcast
no ip route-cache
no ip mroute-cache
shutdown
!
interface Serial0/0
ip address 192.168.254.1 255.255.255.0
no ip directed-broadcast
no ip route-cache
no ip mroute-cache
no keepalive
clockrate 2000000
!
ip classless
no ip http server
!
line con 0
transport input none
line aux 0
line vty 0 4
password passw0rd
login
!
no scheduler allocate
end

C2620#show int serial 0/0
Serial0/0 is up, line protocol is up
Hardware is PowerQUICC Serial
Internet address is 192.168.254.1/24
MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec,
reliablility 255/255, txload 1/255, rxload 1/255
Encapsulation HDLC, loopback not set, keepalive not set
Last input never, output 00:00:28, 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 0/1/256 (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
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
13 packets output, 4300 bytes, 0 underruns
0 output errors, 0 collisions, 11 interface resets
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up

C2620#ping 192.168.254.3

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.254.3, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
------------------------------------------------------------
C2503#show run
Building configuration...

Current configuration:
!
version 11.2
no service password-encryption
no service udp-small-servers
no service tcp-small-servers
!
hostname C2503
!
enable secret 5 $1$XemE$Gix6jnPHk8AWHIgsMr17z/
!
interface Ethernet0
no ip address
shutdown
!
interface Serial0
ip address 192.168.254.3 255.255.255.0
no keepalive
!
interface Serial1
ip address 192.168.254.4 255.255.255.0
no keepalive
!
interface BRI0
no ip address
shutdown
!
no ip classless
!
line con 0
line aux 0
line vty 0 4
password passw0rd
login
!
end

C2503#show ip int brief
Interface IP-Address OK? Method Status Protocol
BRI0 unassigned YES unset administratively down down
BRI0:1 unassigned YES unset administratively down down
BRI0:2 unassigned YES unset administratively down down
Ethernet0 unassigned YES unset administratively down down
Serial0 192.168.254.3 YES NVRAM up up
Serial1 192.168.254.4 YES NVRAM down down

C2503#show int serial 0
Serial0 is up, line protocol is up
Hardware is HD64570
Internet address is 192.168.254.3/24
MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec, rely 255/255, load 1/255
Encapsulation HDLC, loopback not set, keepalive not set
Last input 00:00:05, output 00:00:09, 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 0/1/256 (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
6 packets input, 3106 bytes, 0 no buffer
Received 6 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
2 packets output, 562 bytes, 0 underruns
0 output errors, 0 collisions, 1 interface resets
0 output buffer failures, 0 output buffers swapped out
13 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up

C2503#ping 192.168.254.1

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.254.1, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
------------------------------------------------------------
C2620#show ip int brief
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 unassigned YES NVRAM administratively down down
Serial0/0 192.168.254.1 YES NVRAM up up

C2620#show int serial 0/0
Serial0/0 is up, line protocol is up
Hardware is PowerQUICC Serial
Internet address is 192.168.254.1/24
MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec,
reliablility 255/255, txload 1/255, rxload 1/255
Encapsulation HDLC, loopback not set, keepalive not set
Last input never, output 00:00:05, 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 0/1/256 (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
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
9 packets output, 4117 bytes, 0 underruns
0 output errors, 0 collisions, 11 interface resets
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up

C2620#ping 192.168.254.4

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.254.4, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
------------------------------------------------------------
C2503#show ip int brief
Interface IP-Address OK? Method Status Protocol
BRI0 unassigned YES unset administratively down down
BRI0:1 unassigned YES unset administratively down down
BRI0:2 unassigned YES unset administratively down down
Ethernet0 unassigned YES unset administratively down down
Serial0 192.168.254.3 YES NVRAM down down
Serial1 192.168.254.4 YES NVRAM up up

C2503>show int serial 1
Serial1 is up, line protocol is up
Hardware is HD64570
Internet address is 192.168.254.4/24
MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec, rely 255/255, load 1/255
Encapsulation HDLC, loopback not set, keepalive not set
Last input 00:00:11, output 00:00:48, 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 0/1/256 (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
8 packets input, 3780 bytes, 0 no buffer
Received 8 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
13 packets output, 1883 bytes, 0 underruns
0 output errors, 0 collisions, 1 interface resets
0 output buffer failures, 0 output buffers swapped out
19 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up

C2503#ping 192.168.254.1

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.254.1, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)

 

[burtsbees]

Your presumption is wrong---I have not had time...I just put my house on the market and am moving our office at the same time!

Take one of the interfaces in the 2503 down---remove the ip address---you can't have both interfaces in the same router in the same subnet---you'll cornfuse the pooor thang...

Burt

 

[GlennComiskey]

Burt,

Did take down serial interface on C2503 and as suspected it made no difference, either pinging from or to the device. Therefore believe this just confirms that there is a physical fault with the router.

BTWYAFA.
------------------------------------------------------------
C2503#show ip int brief
Interface IP-Address OK? Method Status Protocol
BRI0 unassigned YES unset administratively down down
BRI0:1 unassigned YES unset administratively down down
BRI0:2 unassigned YES unset administratively down down
Ethernet0 unassigned YES unset administratively down down
Serial0 192.168.254.3 YES NVRAM up up
Serial1 unassigned YES NVRAM administratively down down

C2503#ping 192.168.254.1

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.254.1, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
------------------------------------------------------------
C2620#show ip int brief
Interface IP-Address OK? Method Status Protocol

FastEthernet0/0 unassigned YES NVRAM administratively down down

Serial0/0 192.168.254.1 YES NVRAM up up

C2620#ping 192.168.254.3

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.254.3, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
------------------------------------------------------------
C2503#show ip int brief
Interface IP-Address OK? Method Status Protocol
BRI0 unassigned YES unset administratively down down
BRI0:1 unassigned YES unset administratively down down
BRI0:2 unassigned YES unset administratively down down
Ethernet0 unassigned YES unset administratively down down
Serial0 unassigned YES NVRAM administratively down down
Serial1 192.168.254.3 YES manual up up

C2503#ping 192.168.254.1

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.254.1, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
------------------------------------------------------------
C2620#show ip int brief
Interface IP-Address OK? Method Status Protocol

FastEthernet0/0 unassigned YES NVRAM administratively down down

Serial0/0 192.168.254.1 YES NVRAM up up

C2620#ping 192.168.254.3

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.254.3, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)

 

[burtsbees]

2503#sh ver
Cisco Internetwork Operating System Software
IOS (tm) 2500 Software (C2500-IS-L), Version 11.3(11a), RELEASE SOFTWARE (fc1)
Copyright (c) 1986-1999 by cisco Systems, Inc.
Compiled Mon 20-Sep-99 07:15 by jjgreen
Image text-base: 0x0303712C, data-base: 0x00001000

ROM: System Bootstrap, Version 11.0(10c), SOFTWARE
BOOTFLASH: 3000 Bootstrap Software (IGS-BOOT-R), Version 11.0(10c), RELEASE SOFTWARE (fc1)

2503 uptime is 33 minutes
System restarted by reload
System image file is "flash:c2500-is-l.113-11a.bin", booted via flash

cisco 2500 (68030) processor (revision N) with 6144K/2048K bytes of memory.
Processor board ID 05965828, with hardware revision 00000001
Bridging software.
X.25 software, Version 3.0.0.
Basic Rate ISDN software, Version 1.0.
1 Ethernet/IEEE 802.3 interface(s)
2 Serial network interface(s)
1 ISDN Basic Rate interface(s)
32K bytes of non-volatile configuration memory.
8192K bytes of processor board System flash (Read ONLY)

Configuration register is 0x2102

2503#sh run
Building configuration...

Current configuration:
!
version 11.3
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname 2503
!
!
no ip domain-lookup
isdn switch-type ntt
!
!
interface Ethernet0
no ip address
shutdown
!
interface Serial0
ip address 192.168.1.2 255.255.255.0
no ip mroute-cache
!
interface Serial1
no ip address
shutdown
!
interface BRI0
no ip address
shutdown
!
ip classless
!
!
line con 0
logging synchronous
line aux 0
line vty 0 4
login
!
end

2503#ping 192.168.1.1

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.1.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/3/4 ms
2503#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 192.168.1.0/24 is directly connected, Serial0
2503#
2620#
2620#sh ver
Cisco Internetwork Operating System Software
IOS (tm) C2600 Software (C2600-IS-M), Version 12.0(7)T, RELEASE SOFTWARE (fc2)
Copyright (c) 1986-1999 by cisco Systems, Inc.
Compiled Tue 07-Dec-99 02:21 by phanguye
Image text-base: 0x80008088, data-base: 0x80C524F8

ROM: System Bootstrap, Version 12.2(6r), RELEASE SOFTWARE (fc1)

2620 uptime is 3 minutes
System returned to ROM by reload
System image file is "flash:c2600-is-mz.120-7.T.bin"

cisco 2620 (MPC860) processor (revision 0x00) with 26624K/6144K bytes of memory.
Processor board ID JAD06090K25 (789104704)
M860 processor: part number 0, mask 49
Bridging software.
X.25 software, Version 3.0.0.
1 FastEthernet/IEEE 802.3 interface(s)
2 Serial network interface(s)
32K bytes of non-volatile configuration memory.
8192K bytes of processor board System flash (Read/Write)

Configuration register is 0x2122

2620#sh run
Building configuration...

Current configuration:
!
version 12.0
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname 2620
!
!
!
!
!
!
ip subnet-zero
!
!
!
!
!
!
interface FastEthernet0/0
no ip address
no ip directed-broadcast
shutdown
duplex auto
speed auto
!
interface Serial0/0
ip address 192.168.1.1 255.255.255.0
no ip directed-broadcast
no ip mroute-cache
clockrate 2000000
!
interface Serial0/1
no ip address
no ip directed-broadcast
shutdown
!
ip classless
no ip http server
!
!
line con 0
transport input none
speed 19200
line aux 0
line vty 0 4
login
!
no scheduler allocate
end

2620#ping 192.168.1.2

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.1.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 4/4/4 ms
2620#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, ia - IS-IS inter area
* - candidate default, U - per-user static route, o - ODR
P - periodic downloaded static route

Gateway of last resort is not set

C 192.168.1.0/24 is directly connected, Serial0/0
2620#sh controllers s0/0
Interface Serial0/0
Hardware is PowerQUICC MPC860
DCE V.35, clock rate 2000000
idb at 0x8146B958, driver data structure at 0x814718B4
SCC Registers:
General [GSMR]=0x2:0x00000030, Protocol-specific [PSMR]=0x8
Events [SCCE]=0x0000, Mask [SCCM]=0x001F, Status [SCCS]=0x06
Transmit on Demand [TODR]=0x0, Data Sync [DSR]=0x7E7E
Interrupt Registers:
Config [CICR]=0x00367F80, Pending [CIPR]=0x00008000
Mask [CIMR]=0x40204000, In-srv [CISR]=0x00000000
Command register [CR]=0x600
Port A [PADIR]=0x0100, [PAPAR]=0xFFFF
[PAODR]=0x0000, [PADAT]=0xBBFB
Port B [PBDIR]=0x03A0F, [PBPAR]=0x0C00E
[PBODR]=0x0000E, [PBDAT]=0x3275D
Port C [PCDIR]=0x00C, [PCPAR]=0x000
[PCSO]=0x0A0, [PCDAT]=0xFC0, [PCINT]=0x00F
Receive Ring
rmd(68012830): status 9000 length 6A address 1B6D044
rmd(68012838): status 9000 length 6A address 1B6C9C4
rmd(68012840): status 9000 length 6A address 1B6C344
rmd(68012848): status 9000 length 6A address 1B724C4
rmd(68012850): status 9000 length 18 address 1B72B44
rmd(68012858): status 9000 length 18 address 1B71E44
rmd(68012860): status 9000 length 18 address 1B717C4
rmd(68012868): status 9000 length 18 address 1B71144
rmd(68012870): status 9000 length 6A address 1B70AC4
rmd(68012878): status 9000 length 6A address 1B70444
rmd(68012880): status 9000 length 6A address 1B6FDC4
rmd(68012888): status 9000 length 6A address 1B6F744
rmd(68012890): status 9000 length 6A address 1B6F0C4
rmd(68012898): status 9000 length 18 address 1B6EA44
rmd(680128A0): status 9000 length 11B address 1B6E3C4
rmd(680128A8): status B000 length 6A address 1B6D6C4
Transmit Ring
tmd(680128B0): status 5C00 length 18 address 1B80B14
tmd(680128B8): status 5C00 length 68 address 1B80B14
tmd(680128C0): status 5C00 length 68 address 1B80B14
tmd(680128C8): status 5C00 length 68 address 1B80B14
tmd(680128D0): status 5C00 length 68 address 1B80B14
tmd(680128D8): status 5C00 length 68 address 1B80B14
tmd(680128E0): status 5C00 length 18 address 1B80B14
tmd(680128E8): status 5C00 length 18 address 1B80B14
tmd(680128F0): status 5C00 length 18 address 1B80B14
tmd(680128F8): status 5C00 length 18 address 1B80B14
tmd(68012900): status 5C00 length 68 address 1B80B14
tmd(68012908): status 5C00 length 68 address 1B80B14
tmd(68012910): status 5C00 length 68 address 1B80B14
tmd(68012918): status 5C00 length 68 address 1B80B14
tmd(68012920): status 5C00 length 68 address 1B80B14
tmd(68012928): status 7C00 length 18 address 1B80B14

SCC GENERAL PARAMETER RAM (at 0x68013C00)
Rx BD Base [RBASE]=0x2830, Fn Code [RFCR]=0x18
Tx BD Base [TBASE]=0x28B0, Fn Code [TFCR]=0x18
Max Rx Buff Len [MRBLR]=1548
Rx State [RSTATE]=0x18008440, BD Ptr [RBPTR]=0x2830
Tx State [TSTATE]=0x18000548, BD Ptr [TBPTR]=0x28C8

SCC HDLC PARAMETER RAM (at 0x68013C38)
CRC Preset [C_PRES]=0xFFFF, Mask [C_MASK]=0xF0B8
Errors: CRC [CRCEC]=0, Aborts [ABTSC]=0, Discards [DISFC]=0
Nonmatch Addr Cntr [NMARC]=0
Retry Count [RETRC]=0
Max Frame Length [MFLR]=1608
Rx Int Threshold [RFTHR]=0, Frame Cnt [RFCNT]=65472
User-defined Address 0000/0000/0000/0000
User-defined Address Mask 0x0000


buffer size 1524

PowerQUICC SCC specific errors:
0 input aborts on receiving flag sequence
0 throttles, 0 enables
0 overruns
0 transmitter underruns
0 transmitter CTS losts


2620#

Attached are 2503 to 2620, s0/0 of the 2620 is DCE, cr 2000000.

Burt

 

[GlennComiskey]

Burt,

Thanks for the posting, much appreciated.

Can't see that I am doing anything wrong, and C2503 still doesn't reponding to ping either as sender or reciever, so it does look like the router is faulty. C'est la vie.

Glenn

 

[jneiberger]

I've seen several 2500-series routers with that problem. I used to have one in my own home lab. It sucks that you got one that had that problem on both interfaces.