ISP parallel use.

[peraocompany]

Hello guys.

I need help.

I have two ISP on my Router (877)

Now I have some problem with Dialer interface.

I need use two VLAN for two ISP (one by one) and backup for first if it needed.

I use route-map and ip route like this:

ip nat inside source route-map GP_NAT interface FastEthernet0 overload
ip nat inside source route-map GP_NAT_BACKUP interface Dialer1 overload
ip nat inside source route-map ST_NAT interface Dialer1 overload

ip route 0.0.0.0 0.0.0.0 FastEthernet0 track 10
ip route 0.0.0.0 0.0.0.0 Dialer1 20

interface BVI1
ip dhcp relay information trusted
ip address 192.168.0.1 255.255.255.0
ip nat inside
no ip virtual-reassembly in
crypto ipsec client ezvpn voice inside

interface BVI2
ip dhcp relay information trusted
ip address 192.168.1.1 255.255.255.0
ip nat inside
ip policy route-map ST_NAT

route-map ST_NAT permit 10
match ip address 21
match interface Dialer1
!
route-map GP_NAT permit 10
match ip address 100
match interface FastEthernet0
!
route-map GP_NAT_BACKUP permit 10
match ip address 100
match interface Dialer1

My problem with Dialer1:

If first ip route is active (ip route 0.0.0.0 0.0.0.0 FastEthernet0 track 10) my Dialler1 is not work (for sourse ping two), and int BVI2 not have internet connection.

if track 10 was active (1 - ip route was not active) BVI2 was have internet connection over Diale1 + was BackUP for other user on BVI1.

Can posable use parallel internet connection? BVI1-FE0 and BVI-Dialer1, earlier it work but now not, I dont know what problem.

Tnak you.

[Richard Bradfield]

I think you need to have one route-map for the PBR and one for the NAT

so 

route-map GP_PBR permit 10
match ip address 100
match interface FastEthernet0

for your PBR

and 

route-map GP_NAT permit 10
match ip address 100

for your NAT

You can use EEM scripts to change the routing if one of the WAN links fails

But can you post the full configuration anyway

thanks

Richard