10-09-2002 07:18 AM - edited 03-02-2019 01:57 AM
Hi,
i have a problem with a Catalyst 3550 and a Cisco 2621 connected over a trunk. On the Router is IRB configured to bridge betwen two Vlans and two route between the other. Here the relevant configuration:
ROUTER 2621 Configuration
bridge irb
interface FastEthernet0/1
description TRUNK TO CATALYST
no ip address
speed 100
full-duplex
interface FastEthernet0/0.21
encapsulation isl 21
ip address 192.168.1.1 255.255.255.0
no ip redirects
interface FastEthernet0/0.22
encapsulation isl 22
no ip redirects
bridge-group 66
interface FastEthernet0/0.23
encapsulation isl 23
no ip redirects
bridge-group 66
interface BVI66
ip address 192.168.2.254 255.255.255.0
bridge 66 protocol ieee
bridge 66 route ip
CATALYST 3550 Configuration
interface FastEthernet0/6
description TRUNK TO LANR001 FAS 0/1
switchport trunk encapsulation isl
switchport mode trunk
no ip address
duplex full
speed 100
interface Vlan23
ip address 192.168.2.1 255.255.255.0
When i try to reach the Catalyst from an station in VLAN 22 with ip address 192.168.2.2 it doesn't work, same when i try to reach the station from the switch. The only station where it works ist the Cisco 2621 with the trunk.
Same configuration on a Catalyst 5000 works.
Any help welcome!!
Regards
10-09-2002 08:24 AM
Is your station plugged into a port on the 3550 in VLAN22 ?
Can you do a show int fa0/6 switchport and paste results here?
If you have the EMI image on the 3550 you can set up a interface vlan22 as well and route for all the VLANs.
10-09-2002 11:14 PM
Yes the station is plugged into to a port on he 3550 VLAN22.
Here ist the show output:
CAT3550#sh int fas 0/6 switchport
Name: Fa0/6
Switchport: Enabled
Administrative Mode: trunk
Operational Mode: trunk
Administrative Trunking Encapsulation: isl
Operational Trunking Encapsulation: isl
Negotiation of Trunking: On
Access Mode VLAN: 1 (default)
Trunking Native Mode VLAN: 1 (default)
Administrative private-vlan host-association: none
Administrative private-vlan mapping: none
Operational private-vlan: none
Trunking VLANs Enabled: ALL
Pruning VLANs Enabled: 2-1001
Protected: false
Unknown unicast blocked: disabled
Unknown multicast blocked: disabled
Voice VLAN: none (Inactive)
Appliance trust: none
I know that i can route betwenn VLANs with the EMI image, but the SMI image is running. The other point is why it works with a Catalyst 5000 and not with the 3550?
Regards
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