My router lab

pandimus

Ok, ive been letting the routers sit for ahwhile, while i do my studys, but seems the is a problem now.. I can ping the eth int on router a, and i can
ping the serial interface on router A, but when i try to ping serial int on B, through A, i get a time out.. So i try to ping it from router A it pings perfect, but if i try to do eth int on B from A, Nada. I did a show running-config on both and they seem to be good to me.. Any ideas?

BTW, when i added routes to my computers, i didnt -p them, so that was what i was originally doing..

Webmaster

Sounds like a routing problem, did you add all the networks with the network command? Does sh ip ro (show ip route) on routerA show routes to the networks of routerB?

pandimus

When i do a sh ip ro on each router, it only shows the first connection on the opposite router i/e serial 1. I does not show anything on the other router beyond that..

Oh, i'm pretty sure i added all the networks like your techlab said.

Webmaster

Please post the interfaces and router rip config of both routers and the show ip route ouput (the routes alone will suffice).

pandimus

Router A

User Access Verification

Password:

C 192.168.11.0/24 is directly connected, Ethernet0
C 192.168.55.0/24 is directly connected, Ethernet1
192.168.22.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.22.6/32 is directly connected, Serial1
C 192.168.22.0/24 is directly connected, Serial1
RouterA>show running-config
^

RouterA#show running-config
Building configuration...

Current configuration:
!
version 12.0
service timestamps debug uptime
service timestamps log uptime
service password-encryption
service udp-small-servers
service tcp-small-servers
!
hostname RouterA
!
ip subnet-zero
!
!
!
interface Ethernet0
ip address 192.168.11.1 255.255.255.0
no ip directed-broadcast
no ip route-cache
no ip mroute-cache
!
interface Ethernet1
ip address 192.168.55.1 255.255.255.0
no ip directed-broadcast
no ip route-cache
no ip mroute-cache
!
interface Serial0
description connected to routerB
no ip address
no ip directed-broadcast
encapsulation ppp
no ip route-cache
no ip mroute-cache
shutdown
!
interface Serial1
description connection to RouterB
ip address 192.168.22.5 255.255.255.0
no ip directed-broadcast
encapsulation ppp
no ip route-cache
no ip mroute-cache
!
router rip
version 2
timers basic 45 270 270 360
network 192.168.11.0
network 192.168.22.0
network 192.168.33.0
network 192.169.11.0
!
ip classless
!
tftp-server flash:/c2500-i-l.120-9
tftp-server flash:c2500-i-l.120-9
!
line con 0
transport input none
line aux 0
transport input all
line vty 0 4
!
end

Router B

Gateway of last resort is not set

R 192.168.11.0/24 [120/1] via 192.168.22.5, 00:00:01, Serial1
192.168.22.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.22.5/32 is directly connected, Serial1
C 192.168.22.0/24 is directly connected, Serial1
C 192.168.33.0/24 is directly connected, Ethernet0
RouterB#

nterface Ethernet0
description connected to LAN2
ip address 192.168.33.1 255.255.255.0
no ip directed-broadcast
no ip route-cache

interface Serial0
description connected to RouterA
no ip address
no ip directed-broadcast
encapsulation ppp
no ip route-cache
no ip mroute-cache
!
interface Serial1
description Conection to RouterA
ip address 192.168.22.6 255.255.255.0
no ip directed-broadcast
encapsulation ppp
no ip route-cache
no ip mroute-cache
clockrate 64000
!
router rip
network 192.168.11.0
network 192.168.22.0
network 192.168.33.0
--More--

Webmaster

The network command is used to define the local network, directly attached to the router. Try the following:

RouterA(config)# router rip
RouterA(config-router)# no network 192.168.33.0
RouterA(config-router)# no network 192.169.11.0
RouterA(config-router)# no timers basic
ctrl-z and wr

RouterB(config)# router rip
RouterB(config-router)# no network 192.168.11.0
remove timer adjustments if any, ctrl-z and save

RouterA# clear ip route *
RouterB# clear ip route *

Wait a sec and then try again and check if both routers have a route to the far-end ethernet network.

pandimus

you mean like this?

R 192.168.11.0/24 [120/1] via 192.168.22.5, 00:00:20, Serial1
C 192.168.22.0/24 is directly connected, Serial1
C 192.168.33.0/24 is directly connected, Ethernet0
RouterB#

Webmaster

Exactly.

Does it work from the multi-homed pc also?

pandimus

Well... I am attempting router A to play this same game.. cant seem to get it to ping the other router.

pandimus

Its funny i can ping from router B all the way to multihome no prob.. But as soon as i attempt to ping from router a to anynetwok on routerB nada

pandimus

C 192.168.11.0/24 is directly connected, Ethernet0
C 192.168.55.0/24 is directly connected, Ethernet1
192.168.22.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.22.6/32 is directly connected, Serial1
C 192.168.22.0/24 is directly connected, Serial1
RouterA>

Webmaster

hmmm, it is still not learning RIP routes. Did you run the clear ip route * command on routerA as well?

pandimus

yes sir

Webmaster

Is the Ethernet0 interface on routerB in network 192.168.33.0/24 up?

And the setup is like this:

mh---routerA---routerb---spare right?

pandimus

outerB#show int eth 0
Ethernet0 is up, line protocol is up , using hub 0
Hardware is Lance, address is 0010.7b3a.be39 (bia 0010.7b3a.be39)
Description: connected to LAN2
Internet address is 192.168.33.1/24
MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec, rely 255/255, load 1/255
Encapsulation ARPA, loopback not set, keepalive set (10 sec)
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:02:16, output 00:00:08, output hang never
Last clearing of "show interface" counters never
Queueing strategy: fifo
Output queue 0/40, 0 drops; input queue 0/75, 0 drops
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
161 packets input, 23417 bytes, 0 no buffer
Received 161 broadcasts, 0 runts, 0 giants, 0 throttles
1 input errors, 0 CRC, 0 frame, 0 overrun, 1 ignored, 0 abort
0 input packets with dribble condition detected
954 packets output, 89744 bytes, 0 underruns
0 output errors, 0 collisions, 6 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out
RouterB#

I can also ping that other computer @ 192.168.33.151

Webmaster

Right now I can only suggest going thru both configs again, cause it is weird routerB is learnign RIP routes from routerA but not vice versa.

If you still have that tftp server running, copy the configs to it, and send them to my email address and I'll have a look. (copy running-config flash) I have pretty much the same config in my lab.

pandimus

i can only get the config from router A, cause i cant telnet into B cause of this problem

pandimus

Actually this is what i get when doing that from Router A

Do you think the router could be bad?

[failed]

%FLH: Idling for 30 secs before retry #2
%FLH: /running-config from 255.255.255.255 to flash ... (retry)

System flash directory:
File Length Name/status
1 5726508 c2500-i-l.120-9
[5726572 bytes used, 2662036 available, 8388608 total]
Accessing file '/running-config' on 255.255.255.255...
Loading /running-config ... [timed out]
[failed]

%FLH: Flash download failed
%SYS-4-CONFIG_NEWER: Configurations from version 12.0 may not be correctly under
stood.
%FLH: /running-config from 255.255.255.255 to flash ...

System flash directory:
File Length Name/status
1 5726508 c2500-i-l.120-9
[5726572 bytes used, 2662036 available, 8388608 total]
Accessing file '/running-config' on 255.255.255.255...
Loading /running-config ..

Webmaster

If you still have that tftp server running, copy the configs to it, and send them to my email address and I'll have a look. (copy running-config flash) I have pretty much the same config in my lab.

Sorry about that, I meant copy run tftp not to flash.

pandimus

NP you got mail.

Thanks for your help..

Webmaster

Try this:

RouterA(config)# router rip
RouterA(config-router)# no timers basic


RouterB(config)# router rip
RouterB(config-router)# version 2

and then clear ip route * on both routers

pandimus

Did i forget to enable version to on router A?

i originally had router b with no timers,(after you said it, then i enabled them in troubleshooting..)

your a lifesaver..

Webmaster

My pleasure

RIP defaults to sending only version 1 packets, but listens to both version 1 and 2. That's why it did accept the routes from the other routerB that is configured to send and receive rip2 only.

pandimus

Sometimes i can be such a dummy.. Well i found one other thing in this situation.. Seems ser 0 on router A is hot.. So if there is a problem with a serial port it may be on router B.. Or i could of just royally messed it up when setting it up..

pandimus

So everything seems to be working..

I am now using the virtual switch manager to configure my switch.. ITs cool.. you can setup hello time for STP.. max age.. Blocking forwarding.. enable disable. Gotta love it.. I NEED another switch to mess with trunking!!!

Fire Starter

pandimus wrote:

oh yeah comes with this

3 AC Power Cords.

2 Ethernet Crossover Cables

1 3ft DCE/DTE Serial Crossover Cable

1 Console Cable

Is there any difference b/w the back to back seriel cable ie two cables or using one complete db60 cable ?

Webmaster

As long as it's a V.35 cable, no.

The reason some go for the 'two cables' is that one is often included with the router. I guess for a homelab you should go the most affordable way, which is the back-to back cable.

nate_lewis

Johan, mate, start your own Cert School! Can tell you now I would pay to go to it. Simple really. You teach using pandimus' lab.

Webmaster

Thanks dude, that's a heck of a compliment

I have to admit, I've been secretly dreaming of starting TechExams training/testing centers around the world

Potential investors may contact me at webmaster-at- techexams.net

teter09

I have been looking over these forums for a long time, used the Net+ notes and have passed my A+ and Net+ due to a lot of info from this site. Thanks Webmaster!!

My Question: I'm attending a CCNA class at University of Central Florida, we have a lab which I have 24/7 access to but it is a pain to get to (due to work, classes and reserved times so everyone has access). The lab has 2 2501 routers, 1 1601, 1 2610, another 2500 series (acts as frame relay so we never do anything else with it) a series 400 fast hub, and a 1900 switch.

Do to my time restrictions I have deccided to buy my own equipment.

Off Ebay, I've purchased 1x 2513 Router (IOS 11.x), 3x 2501 Routers (IOS 12.2), a Catalyst 1900 switch (12 10MB ports with 2 100MB ports), all inclusive for $245 shipped to my door. Cables have been alittle extra, and I'm still looking for 3 more aui transceivers. I am worried about VLAN's and what I will need. At school we use 2610 router, hub and switch (or so I'm told, haven't gotten that far yet). I have been looking for a Catalyst 2900 series (a 2926-xl was recommended in the CCNP forums on this site, would any 2900 do?) and a 2600 router, which will also allow me to use them for my CCNP.

Am I going overboard? I am definately a hands on type of person, and if the 2600 series router and the 2900 switch will give me the experience I need, I am willing to go for it. I was jsut looking for some advice.

Thanks