setting up rip in router simulation 2

[UKHicks]

Hey,

I am using selftestsoftware transcender to prepare myself for the 640-801 exam, and they have router simulators exactly like the ones in the real test.

My problem is this, In one of these scenarios it asks me to take a class C address, and subnet it to give me 6 hosts for each subnet. I then have to take the first address from the first subnet and assign it to the serial 0 interface on the first router.

Next i have to take the second address from the first subnet and assign it to the serial 0 interface on the second router (they are connected by a 56k connection)

Lastly i have to turn on rip and advertise these networks.

So if i have the address 192.168.1.0 /24 in order to subnet it correctly i would have to end up with a 255.255.255.248 mask right? so the first address on the first subnet would be 192.168.1.9 correct?

I have turned on Clocking on the DCE connection, assigned the appropriate ip addresses, set the bandwidth to 56 and used the no shut on both interfaces.

Rip is turned on with it advertising to the network ip address for its directly connected serial device.

If i use the Show ip int brief command, it show the interface and protocols as being up, yet if i use the show ip route command the routes do not appear, and i cannot ping in between them... argh what am i missing here?

 

[Jsteve]

post a config of one of the routers.

 

[UKHicks]

It won't let me copy and paste.

however from a show run on router 1:

ip subnet-zero

Interface Ethernet0
ip address 192.168.10.1 255.255.255.0

Interface Ethernet1
ip address 192.168.11.1 255.255.255.0

Interface Serial0
bandwidth 56
ip address 192.168.1.9 255.255.255.248
clockrate 56000

router rip
network 192.168.10.0
network 192.168.11.0
network 192.168.1.0
!
ip classless
!
!
line con 0
treansport input none
line aux 0
line vty 0 4
session-timeout 60
password cisco
login
!
end

show run from router 2:

ip subnet-zero

Interface Ethernet0
ip address 192.168.20.1 255.255.255.0

Interface Serial0
bandwidth 56
ip address 192.168.1.10 255.255.255.248

router rip
network 192.168.20.0
network 192.168.1.0
!
ip classless
!
!
line con 0
treansport input none
line aux 0
line vty 0 4
session-timeout 60
password cisco
login
!
end


If i do a show ip int brief from either router it shows both the status and protocol as up on both Serial 0 connections

I must be missing something obvious.. Is it my subnetting?

 

[jdel]

I may be mistaken...but shouldn't RIP be set for the 192.168.1.8 network instead of the 192.168.1.0?

sorry, have been out of that for a little while and im a bit fuzzy on it.

 

[UKHicks]

If i type router rip, and then network 192.168.1.8 and do a show run is still shows 192.168.1.0

 

[dogbert2]

RIP v1 doesn't know or care about subnet masks which aren't classful (i.e. /8, /16, or /24), thus if you attempt to advertise 192.168.1.8 in RIP v1 it will be sent out via RIP as 192.168.1.0/24 (since this is a Class C address).

If you want to see why your RIP routes aren't showing up, use some debug statements on all of your routers to see how far the updates are making it.

Also, if you want to make sure your connectivity works, disable RIP and insert static routes between the routers
in question, if you are able to ping at that point, you
know that the problem is in your configuration of RIP and not the routers themselves.

using debug and/or a network sniffer can be a network tech's best ally when trying to determine what is going on in a given network or network segment.

 

[jdel]

knew i was fuzzy on that one

dogbert this is only in a simulator, so unfortunately those tools cant help!

 

[UKHicks]

turned out to be a bug in the simulator software, thanks for all your help

 

[wybnormal]

jdel - Not all sims are created equal MIMIC and Boson will run several levels of debug commands. Boson is bringing out a version that will have a sniffer avalible for traffic analysis. Both do real routing and both support BGP. As you can see, they are not your average simulator.

MikeS


Find me at

http://www.packetattack.com

"Take advantage of the enemy's unreadiness, make your way by unexpected routes, and attack unguarded spots."
Sun Tzu

 

[cisco1970]

humm i dont think dce work with clockrate 56000 but clockrate 640000

 

[jdel]

wybnormal -wow, I havent checked out those simulators recently, that's awesome. thanks for the info.