Hi,
I have a doubt in understanding the route-map configs described in the below link to achieve Load balancing with 2 ISP connections
http://www.cisco.com/c/en/us/support/docs/ip/network-address-translation-nat/100658-ios-nat-load-balancing-2isp.html
I labbed this scenario and it works fine but I am unable to get the logics for match interface in Route map
access-list 110 permit ip 192.168.108.0 0.0.0.255 any
ip nat inside source route-map fixed-nat interface Dialer0 overload
ip nat inside source route-map dhcp-nat interface FastEthernet0
overload
route-map fixed-nat permit 10
match ip address 110
match interface Dialer0>>>>>>>>>>>
!
route-map dhcp-nat permit 10
match ip address 110
match interface
FastEthernet0 >>>>>>>>>>>
Why do we match the wan interface in
the route-map as the traffic has just hit the Lan Interface
and router has not yet selected which wan interface to send the
traffic to
(what is the logic behind this match statement , I understand only when the
match interface is configured it works )
Please suggest