Hi
I am trying to implement redundancy between two sites using LAN-EXTENSION from two different Service Providers.The following is the configuration and I want FAILOVER to happen automatically WITH TWO LINKS PLUGGED IN ALL THE TIME .
When I plugin both the links I am not able to connect to SITE A from
SITE B or Vice Versa with the following configuration.IF I SHUTDOWN BACKUP LINK or PRIMARY LINK on SITE B everything is working.Please Advise.Right now I have shutdown interface FastEthernet0/48 on 3550-SITE B and everything seems to be good but I want this interface FastEthernet0/48 on 3550-SITE B to be UNSHUT AND STILL EVERYTHING SHOULD BE WORKING
4006-SITE A#
!
interface FastEthernet2/43---------------------primary Service provider A
description primary-LAN-X
switchport access vlan 24
switchport mode access
speed 100
duplex full
end
!
interface FastEthernet3/12---------------------backup Service Provider B
description BACKUP-LAN-X
switchport access vlan 24
switchport mode access
speed 100
duplex full
end
interface Vlan24
ip address 10.32.0.7 255.255.252.0
ip route 0.0.0.0 0.0.0.0 10.32.0.5
ip route 10.32.64.0 255.255.252.0 10.32.0.1
ip route 10.32.72.0 255.255.254.0 10.32.0.1
3750-SITE B:
interface GigabitEthernet1/0/1---------------cross over connection to 3550-SITE B:interface FastEthernet0/1
switchport mode access
power inline never
interface Vlan1
ip address 10.32.0.1 255.255.252.0
ip route 0.0.0.0 0.0.0.0 10.32.0.5
3550-SITE B:
interface FastEthernet0/1---------------------cross over connection to 3750-SITE B:interface FastEthernet0/1
no ip address
duplex full
speed 100
interface FastEthernet0/47------------------primary Service provider A
description to SERVICE POVIDER A
no ip address
duplex full
speed 100
end
!
interface FastEthernet0/48-----------------backup Service Provider B
description to SERVICE POVIDER B
no ip address
duplex full
speed 100
end
interface Vlan1
ip address 10.32.0.10 255.255.252.0
no ip route-cache
ip default-gateway 10.32.0.1
