Hmm,

Sorry for pointing you in the wrong direction. Having a look this lab it
uses point-to-point FR interfaces, so I don't think what I said was of any
help actually :)

It sounded like ARP wasnt working though - are you able to debug ARP on BB1
and BB3 and see if that gets through?

Cheers,
Adam

On Tue, Oct 12, 2010 at 12:00 PM, Adam Booth <[email protected]> wrote:

> Hi Winston,
>
> When you did your frame-relay mapping for bridge frames - did you also
> include the "broadcast" keyword ? This will be required for ARP to work.
>
> Cheers,
> Adam
>
> On Tue, Oct 12, 2010 at 11:32 AM, Winston Lee <[email protected]>wrote:
>
>> Hello All,
>>
>> I'm performing task 7.4 (trying to use bridge-groups so that BB1 can talk
>> to BB3 across frame-relay), and I'm running into issues not documented in
>> the solution guide. Specifically, I cannot ping from BB1 to BB3 - or vice
>> versa. After doing a 'debug ip packet' on BB3, I noticed that encapsulation
>> was failing and that the arp entry for 100.100.100.100 was incomplete. After
>> adding in the arp entry manually on both BB1 and BB3, ping functions
>> correctly. Is there something I'm missing here, or is this expected
>> behavior? I believe this is supposed to work without manually adding in arp
>> entries.
>>
>> --------------------------
>>
>> BB3#debug ip packet
>> IP packet debugging is on
>> BB3#p 100.100.100.100 r 1
>>
>> Type escape sequence to abort.
>> Sending 1, 100-byte ICMP Echos to 100.100.100.100, timeout is 2 seconds:
>>
>> *Apr 10 11:12:22.563: IP: tableid=0, s=100.100.100.250 (local),
>> d=100.100.100.100 (FastEthernet0/0), routed via RIB
>> *Apr 10 11:12:22.563: IP: s=100.100.100.250 (local), d=100.100.100.100
>> (FastEthernet0/0), len 100, sending
>> *Apr 10 11:12:22.567: IP: s=100.100.100.250 (local), d=100.100.100.100
>> (FastEthernet0/0), len 100, encapsulation failed.
>> Success rate is 0 percent (0/1)
>> BB3#show arp
>> Protocol  Address          Age (min)  Hardware Addr   Type   Interface
>> Internet  100.100.100.100         0   Incomplete      ARPA
>> Internet  100.100.100.250         -   0004.c18e.2e00  ARPA
>> FastEthernet0/0
>>
>> BB1(config)#arp 100.100.100.250 0004.c18e.2e00 ARPA
>>
>> BB3(config)#arp 100.100.100.100 0006.2893.a041 ARPA
>>
>> BB3#p 100.100.100.100 r 1
>>
>> Type escape sequence to abort.
>> Sending 1, 100-byte ICMP Echos to 100.100.100.100, timeout is 2 seconds:
>> !
>> Success rate is 100 percent (1/1), round-trip min/avg/max = 80/80/80 ms
>> BB3#
>> *Apr 10 11:16:31.747: IP: tableid=0, s=100.100.100.250 (local),
>> d=100.100.100.100 (FastEthernet0/0), routed via FIB
>> *Apr 10 11:16:31.747: IP: s=100.100.100.250 (local), d=100.100.100.100
>> (FastEthernet0/0), len 100, sending
>> *Apr 10 11:16:31.823: IP: tableid=0, s=100.100.100.100 (FastEthernet0/0),
>> d=100.100.100.250 (FastEthernet0/0), routed via RIB
>> *Apr 10 11:16:31.827: IP: s=100.100.100.100 (FastEthernet0/0),
>> d=100.100.100.250 (FastEthernet0/0), len 100, rcvd 3
>>
>>
>>
>> _______________________________________________
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>> visit www.ipexpert.com
>>
>>
>
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