Connect 2 cisco routers, on a sim ????

monkey_ninja3

Hey guys, you have all helped so much already, I have done so much more because of you, I wouldnt have been abel to do it without you.

Here's another stupid quiestion that is becoming the bane of my existence.

I have a sim called packet tracer v3.2

All im simply trying to do is connect 2 routers, so they can ping each other.

I have my first router with hostname R1
and my second Router hostnamed R2

Now I understand you can only connect router to router with a serial cable right?
So the options are serial cable DCE or seiral cable DTE, dont really make a difference right?

So I select DTE and connect it to r1 serial interface 3/0 to r2 serial interface 3/0.

I then configured R1 S 3/0 ip address 192.168.1.2 255.255.255.0

I then configured R2 s 3/0 ip address 192.168.2.2 255.255.255.0

I also selected no shutdown on both - but I guess it does that automatically?

They are unable to ping each other, why?
I also enabled RIP on both routers, but I guess that's not nessesary for thsi experiment.
But when I did the show ip interface brief command, it showd the ip address was assigned to router but that protocol was down.

I also selected to save this into config .
write memory.
But they're still unable to ping.
Any ideas?
And please feel free to expand so I can develop - I am going to be spending 8 hours on this today


NinjaMonkey

Then I n

markzab

monkey_ninja3 wrote:

Now I understand you can only connect router to router with a serial cable right? So the options are serial cable DCE or seiral cable DTE, dont really make a difference right?

No, one side is the DCE and one side is the DTE. On the DCE side you have to set that interface with your clock rate. This is done like so...

Router#conf t
Router(config)int s0
Router(config-if)clock rate 64000

monkey_ninja3 wrote:

So I select DTE and connect it to r1 serial interface 3/0 to r2 serial interface 3/0.

I then configured R1 S 3/0 ip address 192.168.1.2 255.255.255.0

I then configured R2 s 3/0 ip address 192.168.2.2 255.255.255.0

I also selected no shutdown on both - but I guess it does that automatically?

Each side of your WAN link should be on the same subnet. Change your IP addresses to 192.168.1.1 255.255.255.252 for one side and 192.168.1.2 255.255.255.252 on the other side. You should manually type the no shut command on each interface.

monkey_ninja3 wrote:

They are unable to ping each other, why?

Try my suggestions and then let us know.

GL

monkey_ninja3

Fuckin A! It works, the subnet was stipid mistake, but I didnt realise the clock rate is mandatory to set up, and how its only at 1 end of the serial.

noiw i'll try attatching hubs, and another router ..

Thanks!

markzab

monkey_ninja3 wrote:

Fuckin A! It works, the subnet was stipid mistake, but I didnt realise the clock rate is mandatory to set up, and how its only at 1 end of the serial.

noiw i'll try attatching hubs, and another router ..

Thanks!

monkey_ninja3

I got a syntax question.

I am trying to attatch my switch (default gateway 192.168.1.0) to FastE 0/0 interface on router1.

I try to assign the router 1 faste 0/0 interface to ip address 192.168.1.0 255.255.252.

but everytime I try, it wont let me, It says

PIMP(config-if)#ip address 192.168.1.0 255.255.255.252
Bad mask /30 for address 192.168.1.0
PIMP(config-if)#

I started from scratch so dont take details from prior posts into account please.

I figure this has set the ip address on that interface, but I checked, it still says not assigned, even after I choose to write m

Any Ideas?

georgemc

Try turning on ip subnet zero.

georgemc

or use .5 and .6 instead of .1 and .2.

and just noticed. .0 is the network id. 1 and 2 are the valid hosts. 3 is the broadcast.

monkey_ninja3

yea dude you were right .. I got it working, and advanced to the frame relay lab.
Its one thing to learn the theory of subnetting, I didnt get a deep understanding of it until I applied it to a real network

10 days to ccna exam , looks like I might get lucky and pass if I keep learning it 10 hours a day.

NinjaMonkey

iproute

monkey_ninja3 wrote:

10 days to ccna exam , looks like I might get lucky and pass if I keep learning it 10 hours a day.

Just be sure you're not forcing yourself into the exam before you're ready.