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Home > Archive > CCNA > July 2003 > home lab HELP PLEASE
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home lab HELP PLEASE
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| jason892 2003-07-07, 6:20 pm |
| I bought two routers off ebay to set up a home lab. They are both 2501 routers. I got a dte-dce crossover cable for the serial ports, thinking I could use that to get them to talk to each other. It ain't working. One of my routers only has two serial ports and a token port. I'm going to call it router0 for simplicity. The other has two serial and two a/s serial ports. Let's call it router 1. I have set s0 on on router 1 to an ip address of 10.0.0.1/30 auto-detect encapsulation ppp. The DTE end of the cable is connected to this port. I set router0 ip address 10.0.0.2/30 encapsulation ppp chap. I also enabled dce-timing. I have turned on rip, with the right networks, and entered the hosts. When I plug the cable in, the port goes up, with line protocol up. After the keepalive period, the line protocol goes back down. Can somebody tell me what I'm doing wrong? I tried using the cable on the a/s serial ports and the same thing happens. When line protocol is up, I can't ping the other router. The lights on the ports blink every once in a while.
Just to let you know, I'm only in the second semester of the cisco academy, and this is the first time I've ever messed with routers. I used the sims alot, but apparantly didn't learn how to make the darn things talk . So if somebody could help, I'd be greatly appreciative. | |
| davidbeecken 2003-07-07, 6:24 pm |
| did you set clock rate?
Find an example in a book of doing something similar(I also have some examples in my ccna section). Follow the instructions exactly starting from scratch | |
| jason892 2003-07-07, 6:32 pm |
| quote:
Originally posted by davidbeecken
did you set clock rate?
What would you set the clockrate at? I know you would set the rate if you were going out over a leased line, but what speed does the serial ports on a router run at? I am attaching a log file where I captured the text from a show ver, show run, and show int for both routers. On the kaitlyn router the interface is s2. On the kassidy router it is s0.
You may be right about starting from scratch. I have been playing with them for a few days, but the crossover cable just came in the mail today. | |
| JamieOB 2003-07-07, 6:58 pm |
| jason did u check the cisco netacad? if u log on there go 2 semester 3 or 4, and practice, u mite have 2 individually set up. go thru hyper terminal, set that up and then set up each router!
i just passed semester 4 CCNA and i get an average of 90 out of practical | |
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| darthfeces 2003-07-07, 10:25 pm |
| place clock rate 56000 on the router with the dce end of the cable.
don't even mess with ppp yet just use the default hdlc.
try debug serial interface for fun to see the messages before and after. | |
| jason892 2003-07-07, 10:28 pm |
|  I got it. I kinda wish larkspur would have replied a few hours ago, but then I wouldn't have figured it out myself, and probably wouldn't have remembered it down the road. The problem it wouldn't work at first (I think) is because I had the s0 ports connected. I still haven't figured out why it wouldn't talk to the s2 port, unless I had the cable backwards. I wound up doing what david said and erased the startup-config, then reloaded and started with the setup. All I did was set the port ip addresses and the clock rates. However, I set the clockrates on the s0 port instead of the s1 port. Thanks for the help. If I figure out why s2 wouldn't talk, I'll repost. | |
| darthfeces 2003-07-07, 10:40 pm |
| interfaces are interfaces that doesn't matter s0 s1 whatever.
you can connect s0 on one to s1 on another.
you just have to set clock on the interface that has the dce end of the cable,
since you're not connecting to an isp and a traditional csu/dsu. by using a dte/dce x-over you "become" the isp.
show controllers s0 or whatever will tell you what type of connection is there
this may help
http://www.psexams.com/pages/ccielab.htm | |
| jason892 2003-07-07, 10:53 pm |
| quote:
Originally posted by darthfeces
interfaces are interfaces that doesn't matter s0 s1 whatever.
So it should have worked with s0 to s0? I must have had something else wrong. I tried setting a clockrate on one interface after david's reply, but it didn't work. I may have set it on the wrong end. I'll try tomorrow. Thanks for the help. | |
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R1(boot)#copy tftp flash
Use now the right/correct platform image file and I hope this will stop the WAR!
And this will bring you back to AD 2102 after a reload.
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