3 routers in Frame Relay:I can't make pings between routers!!!! 1

[capacityes]

Hello.

I am trying to set up a test lab for frame relay. I've one router Cisco 2620 and 2 routers Cisco 1760.

It's like this:

PC1--->1760---F.Relay-->2620<---F.Relay---1760---PC2


The 1760 are configured like a DTE, and the 2600 like switch.

I've configured the 3 routers but I couldn't make pings from PC1 to PC2!! Only from PC1 to the 1760's. Neither from router 2620 to any of the 1720's.

The configuration is the next:

###router 2600##

frame-relay switching
¡
interface serial 0/0
no ip address
encapsulation frame-relay
clockrate 1800000
frame-relay intf-type dce
frame-relay route 17 interface serial 0/1 18
no shutdown
!

interface serial 0/1
no ip address
encapsulation frame-relay
clockrate 1800000
frame-relay intf-type dce
frame-relay route 18 interface serial 0/1 17
no shutdown

######route 2 - 1760 left####

interface fastethernet 0/0
ip address 200.1.1.1 255.255.255.0
no shutdown
!
interface serial 1/0
ip address 163.4.8.1 255.255.255.0
encapsulation frame-relay
no shutdown
!
router eigrp 12
network 163.4.0.0
network 200.1.1.0


######route 3 - 1760 right####

interface fastethernet 0/0
ip address 200.2.2.1 255.255.255.0
no shutdown
!
interface serial 1/0
ip address 163.4.8.1 255.255.255.0
encapsulation frame-relay
no shutdown
!
router eigrp 12
network 163.4.0.0
network 200.2.2.0

I don't know what's the problem, this configuration seems to be ok.


Thanks in advance

 

[capacityes]

Sorry I've make a mistake, the serial for the router 1760 -right, is 163.4.8.2.

The true code for the router 3-1760 right will be:

[before is ok]
!
interface serial 1/0
ip address 163.4.8.2 255.255.255.0
encapsulation frame-relay

[after is ok]

Thanks in advance

 

[lambent]

interface serial 0/1
no ip address
encapsulation frame-relay
clockrate 1800000
frame-relay intf-type dce
frame-relay route 18 interface serial 0/1 17 <----- serial 0/1 again?
no shutdown

Also where's your DLCI settings in your 1760 routers?

 

[capacityes]

Sorry I copy that's line wrong too!!

Really it will be:


frame-relay route 18 interface serial 1/0 17


[I think this router is going me crazy]

About the DLCI's in the 1760's, I found this configuration in "McGraw-Hill Cisco TCP-IP Routing Professional Reference" so I didn't add any lines.

I think that DLCI's in 1760 routers only will be put when we're using subinterfaces. For example:

interface Serial 0
no ip address
encapsulation frame-relay IETF
frame-relay lmi-type ansi
!
interface Serial0.100 point-to-point
ip address 10.1.1.1 255.255.255.252
frame-relay interface-dlci 510 <---
!


I think DLCI's in 1760 routers only will be put when we're using subinterfaces... don't you?

Thanks in advance

 

[lambent]

for physical interfaces, there are 2 kinds of configuration I saw so far:

1) use lmi
or
2) use frame-relay map

but I don't see them in your remote routers

 

[lambent]

Also I found a Cisco configuration sample that use "frame-relay interface-dlci" on physical interface:

http://www.cisco.com/warp/public/125/14.pdf

Btw if your IOS version is 11.2 or later, the lmi should be auto-negotiated. And frame-relay map is mostly used in hub-and-spoke topology using physical interfaces. So you can simply ignore my previous post and try the "frame-relay interface-dlci" command on the physical interface.

 

[capacityes]

Thanks Lambert, tomorrow I will try to apply the pdf's example in my routers.

Today I was trying but the DLCI's status were inactived...

Router#show frame-relay pvc

PVC Statistics for interface Serial1/0 (Frame Relay DTE)

Active Inactive Deleted Static
Local 0 0 1 0
Switched 0 0 0 0
Unused 0 0 0 0

DLCI = 17, DLCI USAGE = LOCAL, PVC STATUS = DELETED, INTERFACE = Serial1/0


In the 2620 router the DLCI's (17 and 18) are inactived...

I changed the Serial V.35 but that was Ok, the serial isn't the trouble.

If you know what's happening tell me, please.


Thanks

 

[lambent]

Please let me know the results after you include the frame-relay interface-dlci command. Good luck!

 

[capacityes]

Yesterday I tried my configuration again and it worked!!,
This is incredible !

Thanks for all!