FRAME RELAY COMMUNICATION PROBLEM

Hi,

Here is the problem. I have four routers. Router1, Router2, Router3, Router7. All four routers communicate through a Frame Relay Switch. I have a PVC between Router1 and Router2. I also have another PVC between Router1 and Router3. Also another PVC between Router2 and Router7, and Router7 and Router3. Currently, Router1 can ping Router2 and Router3. And Router2 can ping Router1. And Router3 can ping Router1. However, Router7 seven cannot ping Router2 or Router3, and vice-versa. Below is sh run of the four routers and the frame relay switch.

Thanks

Router1

interface Serial0 ip address 172.12.123.1 255.255.255.0 encapsulation frame-relay no ip mroute-cache no fair-queue frame-relay map ip 172.12.123.2 102 broadcast frame-relay map ip 172.12.123.3 103 broadcast no frame-relay inverse-arp !

Router2

interface Serial0 ip address 172.12.123.2 255.255.255.0 encapsulation frame-relay no fair-queue frame-relay map ip 172.12.123.1 201 broadcast frame-relay map ip 172.12.123.7 145 broadcast no frame-relay inverse-arp !

Router3

interface Serial0/0 ip address 172.12.123.3 255.255.255.0 encapsulation frame-relay no fair-queue frame-relay map ip 172.12.123.1 301 broadcast frame-relay map ip 172.12.123.7 365 broadcast no frame-relay inverse-arp !

Frame Relay Switch

hostname FRAME_RELAY_SWITCH ! ! ip subnet-zero no ip domain-lookup ! frame-relay switching ! ! ! ! interface Ethernet0 no ip address shutdown media-type 10BaseT ! interface Ethernet1 no ip address shutdown ! interface Serial0 no ip address encapsulation frame-relay clockrate 56000 frame-relay intf-type dce frame-relay route 541 interface Serial2 145 frame-relay route 563 interface Serial1 365 ! interface Serial1 no ip address encapsulation frame-relay logging event subif-link-status logging event dlci-status-change clockrate 56000 frame-relay intf-type dce frame-relay route 201 interface Serial3 102 frame-relay route 365 interface Serial0 563 ! interface Serial2 no ip address encapsulation frame-relay clockrate 56000 frame-relay intf-type dce frame-relay route 145 interface Serial0 541 frame-relay route 301 interface Serial3 103 ! interface Serial3 no ip address encapsulation frame-relay clockrate 56000 frame-relay intf-type dce frame-relay route 102 interface Serial1 201 frame-relay route 103 interface Serial2 301 !

Hi,

Here is the problem I am having. I have four routers Router1, Router2, Router3, Router7. The four routers are connected through a Frame Relay Switch. The problem is that Router2 cannot ping Router7 and Router3 cannot ping Router7. Router2, and Router3 can ping Router1, but they cannot ping Router7. What is wrong with the config? Below is a view of the sh run truncated.

Thank You

Frame Relay Switch

interface Serial0 no ip address encapsulation frame-relay clockrate 56000 frame-relay intf-type dce frame-relay route 196 interface Serial2 691 frame-relay route 791 interface Serial1 197 ! interface Serial1 no ip address encapsulation frame-relay logging event subif-link-status logging event dlci-status-change clockrate 56000 frame-relay intf-type dce frame-relay route 112 interface Serial3 211 frame-relay route 197 interface Serial0 791 ! interface Serial2 no ip address encapsulation frame-relay clockrate 56000 frame-relay intf-type dce frame-relay route 602 interface Serial3 206 frame-relay route 691 interface Serial0 196 ! interface Serial3 no ip address encapsulation frame-relay clockrate 56000 frame-relay intf-type dce frame-relay route 206 interface Serial2 602 frame-relay route 211 interface Serial1 112

Router 1

interface Serial0 ip address 172.12.123.1 255.255.255.0 encapsulation frame-relay no ip mroute-cache no fair-queue frame-relay map ip 172.12.123.2 211 broadcast frame-relay map ip 172.12.123.3 206 broadcast no frame-relay inverse-arp

Router 2

interface Serial0 ip address 172.12.123.2 255.255.255.0 encapsulation frame-relay no fair-queue frame-relay map ip 172.12.123.1 112 broadcast frame-relay map ip 172.12.123.7 197 broadcast no frame-relay inverse-arp !

Router 3

interface Serial0/0 ip address 172.12.123.3 255.255.255.0 encapsulation frame-relay no fair-queue frame-relay map ip 172.12.123.1 602 broadcast frame-relay map ip 172.12.123.7 691 broadcast no frame-relay inverse-arp !

Router 7

interface Serial0 ip address 172.12.123.7 255.255.255.0 encapsulation frame-relay frame-relay map ip 172.12.123.2 791 broadcast frame-relay map ip 172.12.123.3 196 broadcast no frame-relay inverse-arp !