IRB Issue

Hi Guys,

I was listening to the video of Brian Macghan and doing the lab as well whatever he was doing on the lecture. But unfortunately I was not able to achieve what he achieve in that video. According to the video after enabling IRB I should be able to ping R2 LAN and R4 LAN interface, but if you see the configuration my BVI interface of R3 never came up. I am posting my configurations

 

Topology:

------------

                                      Bridge IP                 

R2 F0/0 ---- F0/0 R1 S0/0 (FR 103) ---- (FR 301) S1/0 R3 F0/0 ---- F0/0 R4 

                                                                             S1/1.315  

                                                                               |                 Routed IP

                                                                                ---- S0/0/0.513 R5

 

Configuration and Results:

------------------------------

 

====R2====

FastEthernet0/0            24.0.0.2        YES manual up                    up

 


Rack1R2#ping 24.0.0.4

Sending 5, 100-byte ICMP Echos to 24.0.0.4, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/4 ms

 

Rack1R2#trace 24.0.0.4

  1 24.0.0.4 0 msec *  0 msec


Rack1R2#sh run int f0/0

interface FastEthernet0/0

 ip address 24.0.0.2 255.255.255.0

 duplex auto

 speed auto

end

====

 

====R1====


Rack1R1#sh ip int br

Interface                  IP-Address      OK? Method Status                Protocol

FastEthernet0/0            unassigned      YES TFTP   up                    up

Serial0/0                  unassigned      YES NVRAM  up                    up

 


Rack1R1#sh ip route

Default gateway is not set

Host               Gateway           Last Use    Total Uses  Interface

ICMP redirect cache is empty


Rack1R1#sh run int f0/0

interface FastEthernet0/0

 no ip address

 no ip route-cache

 duplex auto

 speed auto

end

 

Rack1R1#sh run int s0/0

interface Serial0/0

 no ip address

 encapsulation frame-relay

 no ip route-cache

 frame-relay map bridge 103 broadcast

end

====

====R3====

System image file is "flash:c2600-adventerprisek9-mz.124-25c.bin"



Rack1R3#sh ip int br

Interface                  IP-Address      OK? Method Status                Protocol

FastEthernet0/0            unassigned      YES TFTP   up                    up

Serial1/0                  unassigned      YES NVRAM  up                    up

Serial1/1                  unassigned      YES NVRAM  up                    up

Serial1/1.315              35.0.0.3        YES manual up                    up

BVI1                       24.0.0.3        YES manual down                  down



Rack1R3#sh ip route

Gateway of last resort is not set

     35.0.0.0/24 is subnetted, 1 subnets

C       35.0.0.0 is directly connected, Serial1/1.315






Rack1R3#ping 24.0.0.4 or 2

Sending 5, 100-byte ICMP Echos to 24.0.0.4, timeout is 2 seconds:

.....

Success rate is 0 percent (0/5)


Rack1R3#ping 35.0.0.5

Sending 5, 100-byte ICMP Echos to 35.0.0.5, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 56/58/60 ms





Rack1R3#sh run | in bridge|route

bridge irb

 frame-relay map bridge 301 broadcast

bridge 1 protocol ieee

bridge 1 route ip




Rack1R3#sh run int f0/0

interface FastEthernet0/0

 no ip address

 duplex auto

 speed auto

end


Rack1R3#sh run int s1/0

interface Serial1/0

 no ip address

 encapsulation frame-relay

 frame-relay map bridge 301 broadcast

end




Rack1R3#sh run int s1/1

interface Serial1/1

 no ip address

 encapsulation frame-relay

end


Rack1R3#sh run int s1/1.315

interface Serial1/1.315 point-to-point

 ip address 35.0.0.3 255.255.255.0

 frame-relay interface-dlci 315

end



====

====R4====


Rack1R4#sh ip int br

Interface                  IP-Address      OK? Method Status                Protocol

FastEthernet0/0            24.0.0.4        YES manual up                    up




Rack1R4#sh run int f0/0

interface FastEthernet0/0

 ip address 24.0.0.4 255.255.255.0

 duplex auto

 speed auto

end




Rack1R4#ping 24.0.0.2

Sending 5, 100-byte ICMP Echos to 24.0.0.2, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/4 ms


Rack1R4#trace 24.0.0.2

  1 24.0.0.2 0 msec *  0 msec



====


====R5====


Rack1R5#sh ip int br

Interface                  IP-Address      OK? Method Status                Protocol

Serial0/0/0                unassigned      YES NVRAM  up                    up

Serial0/0/0.513            35.0.0.5        YES manual up                    up




Rack1R5#sh run int Serial0/0/0

interface Serial0/0/0

 no ip address

 encapsulation frame-relay

 frame-relay lmi-type cisco

end


Rack1R5#sh run int Serial0/0/0.513

interface Serial0/0/0.513 point-to-point

 ip address 35.0.0.5 255.255.255.0

 frame-relay interface-dlci 513

end




Rack1R5#ping 35.0.0.3

Sending 5, 100-byte ICMP Echos to 35.0.0.3, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 56/58/60 ms

====


Comments


  • mahiralli,

    before going to further on testing and verifying this..I wanted to ask you if this is dynamips or real gear?

    Please let me know..


  • Hi,

      What state is your DLCI on? issue "show frame-relay pvc xxx".

    Good luck with your studies!

  • Here are the PVC from R1, R3 and R5

     

    ====


    Rack1R1#sh frame pvc 103

     

    PVC Statistics for interface Serial0/0 (Frame Relay DTE)

     

    DLCI = 103, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial0/0

     

      input pkts 0             output pkts 0            in bytes 0

      out bytes 0              dropped pkts 0           in pkts dropped 0

      out pkts dropped 0                out bytes dropped 0

      in FECN pkts 0           in BECN pkts 0           out FECN pkts 0

      out BECN pkts 0          in DE pkts 0             out DE pkts 0

      out bcast pkts 0         out bcast bytes 0

      5 minute input rate 0 bits/sec, 0 packets/sec

      5 minute output rate 0 bits/sec, 0 packets/sec

      pvc create time 05:28:44, last time pvc status changed 05:28:24

     

    -------

     


    Rack1R3#sh frame pvc 301

     

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

     

    DLCI = 301, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial1/0

     

      input pkts 0             output pkts 0            in bytes 0

      out bytes 0              dropped pkts 0           in pkts dropped 0

      out pkts dropped 0                out bytes dropped 0

      in FECN pkts 0           in BECN pkts 0           out FECN pkts 0

      out BECN pkts 0          in DE pkts 0             out DE pkts 0

      out bcast pkts 0         out bcast bytes 0

      5 minute input rate 0 bits/sec, 0 packets/sec

      5 minute output rate 0 bits/sec, 0 packets/sec

      pvc create time 05:29:48, last time pvc status changed 05:29:18


    -----



    Rack1R3#sh frame pvc 315


    PVC Statistics for interface Serial1/1 (Frame Relay DTE)


    DLCI = 315, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial1/1.315


      input pkts 302           output pkts 305          in bytes 81438

      out bytes 82899          dropped pkts 0           in pkts dropped 0

      out pkts dropped 0                out bytes dropped 0

      in FECN pkts 0           in BECN pkts 0           out FECN pkts 0

      out BECN pkts 0          in DE pkts 0             out DE pkts 0

      out bcast pkts 234       out bcast bytes 75947

      5 minute input rate 0 bits/sec, 0 packets/sec

      5 minute output rate 0 bits/sec, 0 packets/sec

      pvc create time 03:45:38, last time pvc status changed 03:42:48



    -----




    Rack1R5#sh frame pvc 513


    PVC Statistics for interface Serial0/0/0 (Frame Relay DTE)


    DLCI = 513, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial0/0/0.513


      input pkts 302           output pkts 305          in bytes 81900

      out bytes 82437          dropped pkts 0           in pkts dropped 0

      out pkts dropped 0                out bytes dropped 0

      in FECN pkts 0           in BECN pkts 0           out FECN pkts 0

      out BECN pkts 0          in DE pkts 0             out DE pkts 0

      out bcast pkts 225       out bcast bytes 74925

      5 minute input rate 0 bits/sec, 0 packets/sec

      5 minute output rate 0 bits/sec, 0 packets/sec

      pvc create time 03:43:27, last time pvc status changed 03:43:20



    ====



    Rack1R1#sh frame pvc | in DLCI

    DLCI = 102, DLCI USAGE = UNUSED, PVC STATUS = INACTIVE, INTERFACE = Serial0/0

    DLCI = 103, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial0/0

    DLCI = 104, DLCI USAGE = UNUSED, PVC STATUS = INACTIVE, INTERFACE = Serial0/0

    DLCI = 105, DLCI USAGE = UNUSED, PVC STATUS = ACTIVE, INTERFACE = Serial0/0

    DLCI = 113, DLCI USAGE = UNUSED, PVC STATUS = ACTIVE, INTERFACE = Serial0/0



    ====



    Rack1R3#sh frame pvc | in DLCI

    DLCI = 301, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial1/0

    DLCI = 302, DLCI USAGE = UNUSED, PVC STATUS = INACTIVE, INTERFACE = Serial1/0

    DLCI = 304, DLCI USAGE = UNUSED, PVC STATUS = INACTIVE, INTERFACE = Serial1/0

    DLCI = 305, DLCI USAGE = UNUSED, PVC STATUS = ACTIVE, INTERFACE = Serial1/0

    DLCI = 311, DLCI USAGE = UNUSED, PVC STATUS = ACTIVE, INTERFACE = Serial1/1

    DLCI = 312, DLCI USAGE = UNUSED, PVC STATUS = INACTIVE, INTERFACE = Serial1/1

    DLCI = 314, DLCI USAGE = UNUSED, PVC STATUS = INACTIVE, INTERFACE = Serial1/1

    DLCI = 315, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial1/1.315



    ====



    Rack1R5#sh frame pvc | in DLCI

    DLCI = 501, DLCI USAGE = UNUSED, PVC STATUS = ACTIVE, INTERFACE = Serial0/0/0

    DLCI = 502, DLCI USAGE = UNUSED, PVC STATUS = INACTIVE, INTERFACE = Serial0/0/0

    DLCI = 503, DLCI USAGE = UNUSED, PVC STATUS = ACTIVE, INTERFACE = Serial0/0/0

    DLCI = 504, DLCI USAGE = UNUSED, PVC STATUS = INACTIVE, INTERFACE = Serial0/0/0

    DLCI = 513, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial0/0/0.513



    ====


  • I think what is missing is bridge-group 1 under the interfaces. Do you have that?

  • The Ethernet interfaces and Serial interfaces

  • Thank it worked, now I wonder why Brian didn't put it may be he used the same configuration from previous lesson.

    Wow good way to learn is by doing it. :)

     

    Thank you everyone


  • Great - glad it worked. I am not sure which video is this, but for you are right, they usually keep previous configs from other recordings..

    Happy labbing :)


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