[c-nsp] 2600 to 2600 via t1 config question

[Collins, Richard (SNL US)]

If you take the IRB approach I think that something like this would work
- and
only one bridge group.

Router A config:

hostname RouterA
!
ip cef
bridge irb
!
frame-relay switching
!
interface FastEthernet0/0
 duplex auto
 speed auto
 bridge-group 1
!
interface Serial0/0
 no ip address
 encapsulation frame-relay IETF
 no fair-queue
!
interface Serial0/0.1 point-to-point
 ip address 172.20.0.1 255.255.255.252
 frame-relay interface-dlci 100
!
interface Serial0/0.2 point-to-point
 frame-relay interface-dlci 101
  bridge-group 1
!
interface BVI1
 ip address 5.6.7.8 255.255.255.0
!
bridge 1 protocol ieee
bridge 1 route ip

################################

Router B config:

hostname RouterB
bridge irb
!
frame-relay switching
!
interface Ethernet0/0
 no ip address
 bridge-group 1
!
interface Serial0/0
 no ip address
 encapsulation frame-relay IETF
 no fair-queue
 frame-relay intf-type dce
!
interface Serial0/0.1 point-to-point
 ip address 172.20.0.2 255.255.255.252
 frame-relay interface-dlci 100
!
interface Serial0/0.2 point-to-point
 frame-relay interface-dlci 101
 bridge-group 1
!
interface BVI1
 ip address 5.6.7.7 255.255.255.0  (need another address in this
network)
!
bridge 1 protocol ieee
bridge 1 route ip

################################

PC is set to 5.6.7.9/30[not 30].  [PC needs to know gateway address of
5.6.7.8]

Rich

>> Hi all,
>> 
>> I am trying to configure bridging via t1 on two cisco 2600's sitting
back to
>> back.  Here is a brief outline of what I am trying to accomplish:
>> 
>> Router A: 
>> FE 0/0: 1.2.3.4/24 (publicly routable)
>> S0/0: encapsulation frame relay
>> S0/0.1 ptp: 172.20.0.1/30 dlci 100 
>> S0/0.2 ptp: 5.6.7.8/30 (peering address) dlci 101 bridge-group 2
>> 
>
>Does it have to be frame relay?  What you need here is PPP
Half-bridging.
>
>http://www.cisco.com/en/US/tech/tk713/tk507/technologies_configuration_
example09186a0080093c80.shtml
>
>Your other choice would be to use Integrated Routing and Bridging.
>
>http://www.cisco.com/en/US/products/sw/iosswrel/ps1835/products_configu
ration_guide_chapter09186a00800ca767.html#wp1041949
>
>> Router B:
>> FE 0/0: no ip - bridged ethernet connection - bridge-group 2
>> S0/0: encapsulation frame relay
>> S0/0.1 ptp: 172.20.0.2/30 dlci 100 bridge-group 1
>> S0/0.2 ptp: unnumbered - bridged to ethernet bridge-group 2
>> 
>
>You need to disable IP routing here because IOS does not bridge IP just
>because no IP addresses are applied to an interface.
>
>> PC: 
>> ETH: 5.6.7.9/30 connected to Router B FE 0/0.
>> 
>> 
>> My serial and sub interfaces come up.  I am able to ping from Router
A to
>> 172.20.0.2, and ping from Router B to 172.20.0.1.  I cannot however
ping
>> from the PC at 5.6.7.9 to Router A 5.6.7.8.
>> 
>> I can see the routes being installed in router A for both interfaces
(0.1
>> and 0.2).
>> 
>> Can someone tell me what step I am missing to forward the packets on
Router
>> B from the FE 0/0 interface and have them go across S0/0.2 to hit
Router A
>> on S0/0.2?
>> 
>> 
>> Here are the relevant configs:
>> 
>> Router A config:
>> 
>> hostname RouterA
>> !
>> ip cef
>> !
>> frame-relay switching
>> !
>> interface FastEthernet0/0
>>  ip address 1.2.3.4 255.255.255.0
>>  duplex auto
>>  speed auto
>>  bridge-group 1
>> !
>> interface Serial0/0
>>  no ip address
>>  encapsulation frame-relay IETF
>>  no fair-queue
>>  bridge-group 1
>> !
>> interface Serial0/0.1 point-to-point
>>  ip address 172.20.0.1 255.255.255.252
>>  frame-relay interface-dlci 100
>>  bridge-group 1
>> !
>> interface Serial0/0.2 point-to-point
>>  ip address 5.6.7.8 255.255.255.252
>>  frame-relay interface-dlci 101
>> !
>> bridge 1 protocol ieee
>> bridge 2 protocol ieee
>> 
>> ################################
>> 
>> Router B config:
>> 
>> hostname RouterB
>> !
>> frame-relay switching
>> !
>> interface Ethernet0/0
>>  no ip address
>>  bridge-group 2
>> !
>> interface Serial0/0
>>  no ip address
>>  encapsulation frame-relay IETF
>>  no fair-queue
>>  frame-relay intf-type dce
>>  bridge-group 1
>> !
>> interface Serial0/0.1 point-to-point
>>  ip address 172.20.0.2 255.255.255.252
>>  frame-relay interface-dlci 100
>>  bridge-group 1
>> !
>> interface Serial0/0.2 point-to-point
>>  frame-relay interface-dlci 101
>>  bridge-group 2
>> !
>> bridge 1 protocol ieee
>> bridge 2 protocol ieee
>> 
>> ################################
>> 
>> PC is set to 5.6.7.9/30.
>> 
>> 
>> 
>> Thanks,
>>