Frame Relay (Ping Local Frame Relay Interface).

Hi Guys,

 

I came across this troubleshooting issue.

 

I got Frame Relay configured on two interface (on say Router A and Router B). I could ping both remote interfaces but locally, when I run a ping to each interface (on the respective routers), the ping fails but there is connectivity to both routers (at every layer).

 

Regards

Comments

  • If you want to ping your own frame relay interface IP Address, you must define a frame-relay map with the interface ip addresss pointing to the remote dlci.

    example

    Without the frame relay map

    R1#

    !
    interface Serial2/0:0
     description *** Hacia PP para FR TESTPP1 LP/6 E1/3 ***
     ip address 155.1.0.1 255.255.255.0
     encapsulation frame-relay
     frame-relay map ip 155.1.0.5 105
     no frame-relay inverse-arp
    R1#

    R1#ping 155.1.0.5          

    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 155.1.0.5, timeout is 2 seconds:
    !!!!!
    Success rate is 100 percent (5/5), round-trip min/avg/max = 1/3/4 ms
    R1#
    R1#
    R1#ping 155.1.0.1

    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 155.1.0.1, timeout is 2 seconds:
    .....
    Success rate is 0 percent (0/5)

    R5#

    !
    interface Serial2/0:0
     description *** Hacia PP para FR TESTPP1 LP/6 E1/2***
     ip address 155.1.0.5 255.255.255.0
     encapsulation frame-relay
     frame-relay map ip 155.1.0.1 501
     no frame-relay inverse-arp

    R5#

    R5#ping 155.1.0.1

    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 155.1.0.1, timeout is 2 seconds:
    !!!!!
    Success rate is 100 percent (5/5), round-trip min/avg/max = 1/3/4 ms
    R5#             
    R5#
    R5#ping 155.1.0.5                

    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 155.1.0.5, timeout is 2 seconds:
    .....
    Success rate is 0 percent (0/5)

     

    With the frame relay map

    R1#

    !
    interface Serial2/0:0
     description *** Hacia PP para FR TESTPP1 LP/6 E1/3 ***
     ip address 155.1.0.1 255.255.255.0
     encapsulation frame-relay
     frame-relay map ip 155.1.0.1 105
     frame-relay map ip 155.1.0.5 105
     no frame-relay inverse-arp

    R1#

    R1#ping 155.1.0.5          

    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 155.1.0.5, timeout is 2 seconds:
    !!!!!
    Success rate is 100 percent (5/5), round-trip min/avg/max = 1/3/4 ms
    R1#ping 155.1.0.1

    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 155.1.0.1, timeout is 2 seconds:
    !!!!!
    Success rate is 100 percent (5/5), round-trip min/avg/max = 4/6/8 ms
    R1#

    regards

Sign In or Register to comment.