*TechLabs* CCNA

oliverw

I've been using this forum for knowledge for the past two months so best say thanks .

Been a great help in setting up my lab and troubleshooting.

atifmalik81

hi there, I m a new user of this forum. Indeed this forum helped me alot. Hopefully it will remain helping me on all the way in all the time. Absolutely nice work!

fl

Webmaster wrote:

Below you will find our a list of our current CCNA TechLabs. ....

Switch Configuration Basics *new*

Just wanted to let you know that on http://www.techexams.net/citechnotes.shtml the link to "Switch Configuration Basics" points to the wrong URL! The one posted above works.

Webmaster

Fixed. Thanks for letting me know!

Disinto

Hi there,

Thank you for this perfect Frame Relay lab. I've done a FR lab in my university this morning, and I must admit that nothing was explained, and I've was a bit confused.

I have some question though :
- You list the IP mappings, assuming that they are correctly learned via Inverse ARP. Does IARP always work ? In which cases should we enter static IP mappings ?
- You are using a single router as an FR switch. Is it equivalent to two routers connected via a back to back X.21 cable and using NNI interfaces ? Then, defining DLCI forwarding for each.
- What about using OSPF or RIP over FR ? My lab technical sheet says using "no keep-alive" (interface) and "ip ospf network broadcast" (interface) [for OSPF). Why ?

Thank you !
Best regards,
Florian

kafifi13

Hey these are great!!!

Webmaster

I just uploaded a new TechLab covering Cisco Discovery Protocol in detail. I already wrote a TechNotes for CDP a long time ago, but this one is a bit more extensive and obviously from a more practical angle.

Cisco Discovery Protocol TechLab

You don't need to use the exact same network setup as I did, and command output may vary slightly because of IOS differences. I wrote this lab as part of something else I hope to release soon and will include many more labs.

Johan

redgren

I attempted to do the RIP Techlab using a 2610 and a 2620 router and I'm having trouble with the serial connection.

I followed the lab here: http://www.techexams.net/technotes/ccna/lab_1_rip.shtml. I have router A connected to router B with a DCE/DTE crossover cable. With this configuration and addressing scheme, I can't ping from router A to router B. I can ping from Host A to the serial interface on Router A and from Host B to the serial interface on Router B.

When I do a show ip route, the routing table shows a direct connection to the other router so that leads me to believe its not a physical connection issue. I.E. Router A shows network 192.168.11.0 connected, 192.168.22.0 connected and 192.168.22.6 connected. On both routers I get up and up.

I've double and triple checked to make sure that the router that is connected to the DCE end of the cable has the clock rate set on the serial interface, I've tried to change the address scheme to use a /30 network address on the serial link.

At this point I'm just not sure what to do to get it to work. Any advice? Anyone see what i'm doing wrong?
Thanks in advance for any help.
Bob

pabloCr84

Because of what Router A shows I think the problem is that you haven't configured RIP on router B.

When you do the sh ip route command on router A you should have 192.168.11.0 and 192.168.22.0 as directly connected a 192.168.33.0 as rip.

something like this:
C 192.168.11.0
C 192.168.22.0
R 192.168.33.0

So I suggest you entering this on router B:

RouterB(config)#router rip
RouterB(config-router)#version 2
RouterB(config-router)#network 192.168.22.0
RouterB(config-router)#network 192.168.33.0
RouterB(config-router)#end

If you're using the subnet mask /30 there shouldn't be any problem since Rip Version 2 is classless.
But the original one in the lab works perfectly.

redgren

pabloCr84 wrote:

Because of what Router A shows I think the problem is that you haven't configured RIP on router B.

When you do the sh ip route command on router A you should have 192.168.11.0 and 192.168.22.0 as directly connected a 192.168.33.0 as rip.

something like this:
C 192.168.11.0
C 192.168.22.0
R 192.168.33.0

So I suggest you entering this on router B:

RouterB(config)#router rip
RouterB(config-router)#version 2
RouterB(config-router)#network 192.168.22.0
RouterB(config-router)#network 192.168.33.0
RouterB(config-router)#end

If you're using the subnet mask /30 there shouldn't be any problem since Rip Version 2 is classless.
But the original one in the lab works perfectly.

Thanks for your reply.

I did have RIP configured on Router B, and i did expect an output like you showed when I do a "show ip route". I just wiped out both routers and reconfigurd again for the 3rd time and now it works, so obviously I did something wrong that I couldn't see the first time around.

Before I reconfigured the result of the show ip route on Router_A was:

C 192.168.11.0/24 is directly connected, ethernet 0/0
C 192.168.22.6/32 is directly connected, serial 1/0
C 192.168.22.0/24 is dorectly connected, serial 1/0

but I had no RIP entry.

On Router_B the show ip route displayed:

C 192.168.22.5/32 is directly connected, serial 0/0
C 192.168.22.0/24 is directly connected, serial 0/0
C 192.168.33.0/24 is directly connected, ethernet 0/0
and again, no RIP entry.

But as I said earlier, after reconfiguring again it is working. I appreciate you're trying to help. I'm sure I'll have more questions as I continue.
Bob

Cyrus3v

A big thanks for all this TechLabs. They are really useful.

iyalmelan

Webmaster wrote:

According to our site's traffic statistics, the first "TechLab" is currently being visited by more people than any of our TechNotes or practice exams... still I have had no comments here... Should I create more of these? Should I add or change anything?

Hi Johan,

Great work ! btw, how do i get access to one of available router simulator around here? I want to have a chance of learning BGP, OSPF, bandwidth controlling etc... Thx in advance

-YAL-

wxboss

This is a great resource!

I've just bidded for two 2501 on eBay, and once (if) I get them, I'll be following the rest of the instructions to get started.

Thanks again for the time and effort you put into this.

phantasm

Nice work on the labs!! Any chance of seeing any Inter-VLN or Router on a Stick type labs? I have a lab at home but use Pakcet Trace 4.1 at work to study in my spare time.

rejith_m_k

yea all the labs are very interesting to study but i feels something missed in the lab section of frame relays.. it's about setting the dlci number in end routers...

how can i set the dlci number in end routers???

wedge1988

beats me, i wanna do the CCNA in a year or so... so this sort of thing is appreciated!

Matt_Chris

This is useful..

dclong06

Webmaster wrote:

According to our site's traffic statistics, the first "TechLab" is currently being visited by more people than any of our TechNotes or practice exams... still I have had no comments here... Should I create more of these? Should I add or change anything?

Definitely like being able to come to the site and work thru the simulations... create as many more as you like, I'm sure I'll use them all. Thanks again for the effort... Would like to see some VoIP simulations.

mincol

I follow the diagram and direction on my BOSON simulator, but all serial interfaces go down, of course, even protocol. Could anyone please give me some advice why it may cause the problem ?? Thanks

I was trying three times and got the same result.

networker050184

mincol wrote:

I follow the diagram and direction on my BOSON simulator, but all serial interfaces go down, of course, even protocol. Could anyone please give me some advice why it may cause the problem ?? Thanks

I was trying three times and got the same result.

I'd suggest you try something besides BOSON. The last time I tried to use it there were so many bugs it wasn't worth it.

Septima77

This is a wonderful lab.
I think I noticed a small typo:

[SIZE=-1]STEP 3. Configure the frame relay switch's interfaces

Enter interface configuration mode for the first connected serial interface, e.g. serial 0:
frame-switch(config)# interface serial 0

I think this should be serial 1

Setting this lab up in Boson; many thanks
[/SIZE]

Septima77

mincol wrote: »

I follow the diagram and direction on my BOSON simulator, but all serial interfaces go down, of course, even protocol. Could anyone please give me some advice why it may cause the problem ?? Thanks

I was trying three times and got the same result.

I have exactly the same problem in Boson.
After configuring exactly according the lab instructions, this is what I get

frame-switch#sh int se1
Serial1 is up, line protocol is down
...
LMI DLCI 0 LMI type is ansi frame relay DTE
...
Boson will not set DCE, so protocol is down,

Are there any good simulators that will get this right?
Don't have the financial resources now to buy 3 more routers and cables.

Septima77

Okay,
I have this lab working in RouterSim's CCNA network visualizer 6.0 with 3 x 2621 routers and a 2811 router for frame switching.
Thank you for this nice exercise.

demy12oyin

I discovered this few days before my CCNA exam, it is really good and great.

Keep it up.

Ade CCNA Student

udaykumar.as

Nice site and very very thanks to you , its almost working like the original lab thanks again

deyin.chen

really helps, thanks.:)

cisco_girl

Although this was posted in 2002, it's still very helpful. I just finished the 'Configuring a RIP network' lab and am stoked it worked!

I thought maybe there would some issues since one of my hosts is on Linux and the other is on WinXP, but it was fine.

On to the next one! These are great. Post more!

fluk3d

Hey - I was looking over the guides and just want to say they are great!

Would this kit be suffice to get started for CCENT/CCNA just looking for some opinions?

Cisco Dual 2501 8/8 Router CCNA Kit

Cheers

rwwest7

Does this seem to good to be true:
Cisco WS-C3550-48-SMI Switch 3550 with EMI 50 Qty Avail - eBay (item 170406533981 end time Dec-13-09 06:31:02 PST)

I'm looking for a layer 3 switch and this looks like a good deal. Any advice from the experts?

darkdiablo

This site is great, it is helping a lot of people like me to get some practice.... keep it up guys, in any case that I would be more glad then I'm willing to post some of my study documents like, CCNA1, CCNA2, 3, 4. Even with Microsoft 2000 server, 2003 and etc........