Having problem line protocol is down

kadshah

This is driving me nuts. I've successfully configured eigrp many times
but for some reason I can't get it to work this time maybe someone could help me locate the problem. I'm using RouterSim Vis 5.0.
I just created a small network of 4 routers. Here is the name and IP of each router:

Bob-
s0/0 192.168.10.1 255.255.255.252
s0/1 192.168.10.13 255.255.255.252

Susan-
s0/0 192.168.10.2 255.255.255.252
s0/1 192.168.10.5 255.255.255.252

Jenny-
s0/0 192.168.10.6 255.255.255.252
s0/1 192.168.10.9 255.255.255.252

Jack-
s0/0 192.168.10.10 255.255.255.252
s0/1 192.168.10.14 255.255.255.252


I've turned on EIGRP AS 10 on all routers and advertised the network number. In the sh ip route nothing is coming up and when I run the sh ip int I get serial line up protocol down.
I think it might be the DCE/DTE. I've run the sh controller on each router
but still I'm unsure about how this should be setup. I know that a back to back router one should be DCE the other DTE but how should this be setup when you have 4 routers in a loop environment?





BOB Con0 is now available



Press RETURN to get started!



BOB>en
BOB#sh run

Building configuration...
Current configuration : 625 bytes
!
version 12.2
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname BOB
!
!
!
ip subnet-zero
!
!
!
!
!
interface FastEthernet0/0
no ip address
no ip directed-broadcast
shutdown
!
interface Serial0/0
ip address 192.168.10.1 255.255.255.252
no ip directed-broadcast
!
interface FastEthernet0/1
no ip address
no ip directed-broadcast
shutdown
!
interface Serial0/1
ip address 192.168.10.13 255.255.255.252
no ip directed-broadcast
!
router eigrp 10
network 192.168.10.0
!
!
ip classless
no ip http server
!
!
!
line con 0
line aux 0
line vty 0 4
login
!
end








SUSAN Con0 is now available



Press RETURN to get started!



SUSAN>en
SUSAN#sh run

Building configuration...
Current configuration : 625 bytes
!
version 12.2
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname SUSAN
!
!
!
ip subnet-zero
!
!
!
!
!
interface FastEthernet0/0
no ip address
no ip directed-broadcast
shutdown
!
interface Serial0/0
ip address 192.168.10.2 255.255.255.252
no ip directed-broadcast
!
interface FastEthernet0/1
no ip address
no ip directed-broadcast
shutdown
!
interface Serial0/1
ip address 192.168.10.5 255.255.255.252
no ip directed-broadcast
!
router eigrp 10
network 192.168.10.0
!
!
ip classless
no ip http server
!
!
!
line con 0
line aux 0
line vty 0 4
login
!
end







JENNY Con0 is now available



Press RETURN to get started!



JENNY>en
JENNY#sh run

Building configuration...
Current configuration : 625 bytes
!
version 12.2
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname JENNY
!
!
!
ip subnet-zero
!
!
!
!
!
interface FastEthernet0/0
no ip address
no ip directed-broadcast
shutdown
!
interface Serial0/0
ip address 192.168.10.6 255.255.255.252
no ip directed-broadcast
!
interface FastEthernet0/1
no ip address
no ip directed-broadcast
shutdown
!
interface Serial0/1
ip address 192.168.10.9 255.255.255.252
no ip directed-broadcast
!
router eigrp 10
network 192.168.10.0
!
!
ip classless
no ip http server
!
!
!
line con 0
line aux 0
line vty 0 4
login
!
end






JACK Con0 is now available



Press RETURN to get started!



JACK>en
JACK#sh run

Building configuration...
Current configuration : 625 bytes
!
version 12.2
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname JACK
!
!
!
ip subnet-zero
!
!
!
!
!
interface FastEthernet0/0
no ip address
no ip directed-broadcast
shutdown
!
interface Serial0/0
ip address 192.168.10.10 255.255.255.252
no ip directed-broadcast
!
interface FastEthernet0/1
no ip address
no ip directed-broadcast
shutdown
!
interface Serial0/1
ip address 192.168.10.14 255.255.255.252
no ip directed-broadcast
!
router eigrp 10
network 192.168.10.0
!
!
ip classless
no ip http server
!
!
!
line con 0
line aux 0
line vty 0 4
login
!
end

Humper

Did you set the clock rate on one of the serial interfaces? DCE router will have a clock rate of xxx and the DTE router will ajust to that value accordingly. You only need to set it on one router.

loboernesto

You only need to set it on one router.

^^that's right, but maybe a bit confusing. You need to set the clock rate on one interface for each each pair of DCE/DTE serial interfaces. If you have 4 routers connected as you said, four of the serial interfaces must have the clock rate command entered (the DCE interfaces). If you did the show controllers serial x you will know which ones are the DCE interfaces that need to be configured with the command.
Cheers.[/quote]

kadshah

This is what I have. Any other suggestions?


Jack-
s0/0 DTE
s0/1 DCE

Bob-
s0/0 DCE
s0/1 DTE

Jenny-
s0/1 DCE
s0/0 DTE

Susan-
s0/1 DCE
s0/1 DTE

No output on the sh ip route.

kadshah

Here's some more info with the sh ip protocols command.


SUSAN#sh ip protocols
Routing Protocol is "eigrp 10"
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Default networks flagged in outgoing updates
Default networks accepted from incoming updates
EIGRP metric weight K1=1, K2=0, K3=1, K4=0, K5=0
EIGRP maximum hop count 100
EIGRP maximum metric variance 1
Redistributing: eigrp 10
Automatic network summarization is in effect
Maximum path: 4
Routing for networks:
192.168.10.0
192.168.10.4
Routing information sources:
Gateway Distance Last Update
Distance: internal 90 external 170



JENNY>en
JENNY#sh ip protocols
Routing Protocol is "eigrp 10"
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Default networks flagged in outgoing updates
Default networks accepted from incoming updates
EIGRP metric weight K1=1, K2=0, K3=1, K4=0, K5=0
EIGRP maximum hop count 100
EIGRP maximum metric variance 1
Redistributing: eigrp 10
Automatic network summarization is in effect
Maximum path: 4
Routing for networks:
192.168.10.4
192.168.10.8
Routing information sources:
Gateway Distance Last Update
Distance: internal 90 external 170

BOB>en
BOB#sh ip protocols
Routing Protocol is "eigrp 10"
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Default networks flagged in outgoing updates
Default networks accepted from incoming updates
EIGRP metric weight K1=1, K2=0, K3=1, K4=0, K5=0
EIGRP maximum hop count 100
EIGRP maximum metric variance 1
Redistributing: eigrp 10
Automatic network summarization is in effect
Maximum path: 4
Routing for networks:
192.168.10.0
192.168.10.12
Routing information sources:
Gateway Distance Last Update
Distance: internal 90 external 170


JACK>en
JACK#sh ip protocols
Routing Protocol is "eigrp 10"
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Default networks flagged in outgoing updates
Default networks accepted from incoming updates
EIGRP metric weight K1=1, K2=0, K3=1, K4=0, K5=0
EIGRP maximum hop count 100
EIGRP maximum metric variance 1
Redistributing: eigrp 10
Automatic network summarization is in effect
Maximum path: 4
Routing for networks:
192.168.10.12
192.168.10.8
Routing information sources:
Gateway Distance Last Update
Distance: internal 90 external 170

darwinism

serial line up protocol down has nothing to do with how you configure EIGRP. Can you do a "show cdp neighbors". If not, then you are trying to troubleshoot one layer too high. As other people have mentioned, check your clock-rate and encapsulation configurations. It appears your problem lies @ layer 2 and not 3.

mikej412

kadshah wrote:

No output on the sh ip route.

Did you get past the protocol down issues? Are you now working on a different routing issue?

When I do configurations like that (real routers or simulator), I usually connect Serial 0 on one router to Serial 1 on another router -- and just make all Serial 0 the DCE end. Saved time figuring out router name and cable connections so I could just concentrate on trying new stuff.

Humper

Could also be the simulator but I highly doubt you have configured the clock rates correctly as I do not see them in your configurations.

wildfire

the command sh int controller will shot you if the end is DCE or DTE,

kadshah

It's working now. Funny cause I did set the clock rate twice and it
didn't work. I just got home rebooted my rig and set the clock rate again
and it worked. Maybe the simulator is a little buggy. Thanks anyway for your all your help

I usually connect Serial 0 on one router to Serial 1 on another router -- and just make all Serial 0 the DCE end.

Nice little tip

Peace smiles,

-k

mikej412

kadshah wrote:

It's working now. Funny cause I did set the clock rate twice and it didn't work.

I like the interface on RouterSim... but I had more problems with functionality than with Boson -- and I gave up on Boson. And it's annoying debugging problems only to find out they are flakey software problems -- not router configuration problems.

I still like the concept of the simulators -- they just still don't seem to have delivered on their marketing.

Skribbla

serial up, line down is a clocking, framing or encapsualtion pronlem. you have on your list of info 4 routers each with dce and dte.. on each communicating device (all four of em) on serial 0/0 of all four routers put clock rate 64 and see the magic