01-07-2008 08:19 AM - edited 03-05-2019 08:19 PM
Hi,
I use a MAR3200. The port of the MARC (F0/0) and one port of the switch card (FESMIC F2/1) are connected to 2 devices belonging to the same subnet. IRB is enabled and a BVI is defined.
PCA is connected to F0/0, PCB is connected to F2/1.
When PCA sends a ping request to PCB, PCB answers but the answer does not reach PCA.
When PCB broadcasts an ARP request before a ping to PCA, the PCA answer reaches PCB. Then PCB sends a ping request to PCA but the request does not reach PCA.
Bridging looks operating properly (?) but not routing. What is mising in my configuration (see a short extract below).
Thanks by advance
Alain-Claude
no spanning-tree vlan 3
!
bridge irb
!
!
interface FastEthernet0/0
no ip address
speed auto
full-duplex
bridge-group 1
bridge-group 1 spanning-disabled
!
interface FastEthernet2/1
switchport access vlan 3
!
interface Vlan3
no ip address
bridge-group 1
bridge-group 1 spanning-disabled
!
interface BVI1
ip address 10.231.85.249 255.255.255.248
no ip route-cache
!
no ip classless
ip forward-protocol nd
!
bridge 1 protocol ieee
bridge 1 route ip
!
01-07-2008 01:30 PM
Hi, your BVI interface looks good, but if you want to route for vlan3 you need to enable dot1Q on your ethernet0/0 interface , you have the bridge-group 1 command on that interface, try adding "encapsulation dot1Q 1" on ethernet0/0. i was just tasked with adding several BVI interfaces on our network and had to overcome some bridge-group problems myself. HTH
interface FastEthernet0/0.9
encapsulation dot1Q 222
no snmp trap link-status
bridge-group 222
interface FastEthernet0/1.9
encapsulation dot1Q 222
no snmp trap link-status
bridge-group 222
interface BVI222
description Quarantine Data Vlan
ip address 2.222.44.1 255.255.255.0
bridge 222 protocol ieee
bridge 222 route ip
route-map quarantine 10
match interface BVI222
set ip next-hop 2.222.254.1
01-09-2008 10:18 AM
Thanks Donald for your answer. I tried your suggestion but results are not so good. Pings from MAR to PCA on f0/0 operates properly. Pings from MAR to PCB on f2/0 does not work. PCB receives the ping request and replies, but the MAR does not receive it. "debug ip icmp" provides no trace.
I attach the configuration file <
thx - Alain-Claude
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