Two ISP´s and two LAN´s on the same router ?? help !!!

[mcelec]

Hi people,

I have a 1721 router with two wic-1t interfaces, and, in my F0 interface, I have the primary and a secondary ip addresses, I need LAN1 is diferent to LAN2,(IP addresses)

In other words LAN1 goes to one wic-1t to ISP1 to Internet and LAN2 goes to another wic-1t to ISP2 to Internet.

My problem is I do not know what kind of ip route I need in order to send my two LAN´s to Internet with my two wic interfaces, maybe a load balancing or something like that.

In Fact I do not know if that is posible.

Can somebody helps me?, has somebody a nice link about?.

Thanks a lot who can or wants give me a hand.

MC

[antonyjaison]

Hi MC,

Its possible thruogh policy based routing . Below i am pasting sample configuration for you.

access-list 101 permit ip "LAN 1 Address and Mask" any

access-list 102 permit ip "LAN 2 Address and Mask any

route-map isp permit 10

match ip address 101

set ip next-hop "ISP-1 Next hop address"

route-map isp permit 20

match ip address 102

set ip next-hop "ISP-2 Next hop address"

interface FastEthernet 0

ip policy route-map isp

Add the LAN 1, LAN 2 and next hope addresses based on your setup.

Jaison

[thisisshanky]

When you route packets to two ISPs, you also need to worry about what ip address space you are going to nat your private network to. You will have to use NAT with route-maps to achieve this.

[mcelec]

Thank you very much for your answers gays,

I can not do any test today due Internet here is very important,

but now I have a new doubt,

I have a tipical NAT configuration (with its ip nat inside and outside and making NAT to s0 interface with a ACL of internal LAN.

My current NAT configuration is changed ??

Thanks for your comments

[travis-dennis_2]

It was totally uncalled for to out them like that after they helped you out! :) LOL!!! Remember, Don't ask, don't tell!!!

[antonyjaison]

Hi,

Its not required you to change your current NAT configurations.

Jaison