From: Ben (bmunyao@gmail.com)
Date: Fri Sep 28 2007 - 09:12:23 ART
Hi Shiran,
You need to use "bridge irb" on R2/R3, and move the IP addresses from the
serial interfaces to BVIs. That way, and with "bridge-group ..." on the
serial interface, it will work.
HTH
Ben
On 9/28/07, shiran guez <shiranp3@gmail.com> wrote:
>
> R3-------
> |-----R1
> R2-------
>
>
> R1 is used as FR Hub for R2 and R3
> I am trying to set R1 as Bridge between R2 and R3
> I used R1 /2/3 Point to Point Interface
>
> R1
>
>
> !
> interface Serial1/0
> no ip address
> encapsulation frame-relay
> no ip route-cache
> serial restart-delay 0
> !
> interface Serial1/0.1 point-to-point
> no ip route-cache
> frame-relay interface-dlci 102
> bridge-group 1
> !
> interface Serial1/0.2 point-to-point
> no ip route-cache
> frame-relay interface-dlci 103
> bridge-group 1
> no ip routing
> bridge 1 protocol ieee
> end
>
> R1#sh bridge 1 group
>
> Bridge Group 1 is running the IEEE compatible Spanning Tree protocol
>
> Port 12 (Serial1/0.1 Frame Relay) of bridge group 1 is forwarding
> Port 13 (Serial1/0.2 Frame Relay) of bridge group 1 is forwarding
>
> R1#sh spanning-tree 1 brief
>
> Bridge group 1
> Spanning tree enabled protocol ieee
> Root ID Priority 32768
> Address 0000.0c45.dae8
> This bridge is the root
> Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
>
> Bridge ID Priority 32768
> Address 0000.0c45.dae8
> Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
> Aging Time 300
>
> Interface Designated
> Name Port ID Prio Cost Sts Cost Bridge
> ID Port
> ID
> -------------------- ------- ---- ----- --- ----- --------------------
> -------
> Serial1/0.1 128.12 128 647 FWD 0 32768 0000.0c45.dae8
> 128.12
> Serial1/0.2 128.13 128 647 FWD 0 32768 0000.0c45.dae8
> 128.13
>
> R2
>
> R2#sh run int ser1/0.1
> Building configuration...
>
> Current configuration : 119 bytes
> !
> interface Serial1/0.1 point-to-point
> ip address 182.158.123.2 255.255.255.0
> frame-relay interface-dlci 201
>
> R3
>
> R3#sh run int ser1/0.1
> Building configuration...
>
> Current configuration : 119 bytes
> !
> interface Serial1/0.1 point-to-point
> ip address 182.158.123.3 255.255.255.0
> frame-relay interface-dlci 301
>
> but I do not understand why i cant ping between R2 to R3 as it look like
> the
> bridge is FWD and working ok all the interface are point to point so there
> should not be a encapsulation error of resolving layer 2 to 3 or layer 2
> to
> 2 on the bridge
>
> R2#debug ip packet detail
> IP packet debugging is on (detailed)
> R2#ping 182.158.123.3 re 1
>
> Type escape sequence to abort.
> Sending 1, 100-byte ICMP Echos to 182.158.123.3, timeout is 2 seconds:
>
> *Mar 1 00:36:11.215: IP: tableid=0, s=182.158.123.2 (local), d=
> 182.158.123.3 (Serial1/0.1), routed via FIB
> *Mar 1 00:36:11.219: IP: s=182.158.123.2 (local),
> d=182.158.123.3(Serial1/0.1), len 100, sending
> *Mar 1 00:36:11.219: ICMP type=8, code=0.
> Success rate is 0 percent (0/1)
>
>
>
> R3#debug ip packet detail
> IP packet debugging is on (detailed)
> R3#ping 182.158.123.2 re 1
>
> Type escape sequence to abort.
> Sending 1, 100-byte ICMP Echos to 182.158.123.2, timeout is 2 seconds:
>
> *Mar 1 00:36:57.651: IP: tableid=0, s=182.158.123.3 (local), d=
> 182.158.123.2 (Serial1/0.1), routed via FIB
> *Mar 1 00:36:57.655: IP: s=182.158.123.3 (local),
> d=182.158.123.2(Serial1/0.1), len 100, sending
> *Mar 1 00:36:57.655: ICMP type=8, code=0.
> Success rate is 0 percent (0/1)
>
> so you see there is no problem sending on both sides
>
> also I am getting on the DLCI 0x4242 Spaning tree frames
>
> R3#debug frame-relay packet
> Frame Relay packet debugging is on
> *Mar 1 00:40:34.571: Serial1/0(i): dlci 301(0x48D1), pkt type 0x4242,
> datagramsize 39
> R3#
> *Mar 1 00:40:40.575: Serial1/0(i): dlci 301(0x48D1), pkt type 0x4242,
> datagramsize 39
> R3#
> *Mar 1 00:40:42.571: Serial1/0(i): dlci 301(0x48D1), pkt type 0x4242,
> datagramsize 39
> R3#
>
>
>
> I am missing here something stupid for sure
>
>
> --
> Shiran Guez
> MCSE CCNP NCE1
> http://cciep3.blogspot.com
>
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