I've implemented load balancing for a router with two ADSL links. One fix ip and one dynamic ip. The related configuration is like this:
####################################################
interface ATM0/0/0
no ip address
no ip route-cache
no ip mroute-cache
no atm ilmi-keepalive
dsl operating-mode auto
pvc 1/33
encapsulation aal5snap
pppoe-client dial-pool-number 1
!
!
interface ATM0/1/0
ip address A.B.C.D 255.255.255.252 secondary
ip address D.E.F.G 255.255.255.252
ip nat outside
no ip route-cache
no ip mroute-cache
no atm ilmi-keepalive
dsl operating-mode auto
pvc 0/35
protocol ip A.B.C.k
encapsulation aal5snap
!
!
interface Dialer0
ip address negotiated
ip mtu 1452
ip nat outside
encapsulation ppp
no ip route-cache
no ip mroute-cache
dialer pool 1
dialer-group 1
ppp authentication pap callin
ppp pap sent-username testUser password testPassword
!
ip classless
ip route 0.0.0.0 0.0.0.0 A.B.C.k
ip route 0.0.0.0 0.0.0.0 Dialer0
ip nat inside source route-map BusinessBB interface ATM0/1/0 overload
ip nat inside source route-map DynamicBB interface Dialer0 overload
route-map BusinessBB permit 10
match ip address 100
match interface ATM0/1/0
!
route-map DynamicBB permit 10
match ip address 100
match interface Dialer0
####################################################
The load balancing is alright now. However, the load balancing still works when the dynamic link is down, causing the loss of some packets. The loss is due to the Dialer interface's forever "up up" status.
The IOS of the router is only IPBase.
Any body can tell me the solution of this problem?
