cascading routers, different subnet

I had a test setup where I configure 2 routers in a lan to wan cascading connection to get 2 different subnets. everything worked great. now i moved it to a production environment and it doesn't work. The problem is NAT is failing on the secondary router. I can ping using an external ip address but not something like yahoo.com. I've reset the routers multiple times and can no longer get it to work. I'm way beyond frustration on this so any help would be great, even if it was to refer me to another forum..

Below is what I initially did to get it to work.


I'm posting all the screen shots along with text for the config stuff to get cascading routers to work - Lan to Wan which gives you 2 subnets. router 1.1 is the primary router ip address 192.168.1.1 router 2.1 is the secondray router, ip address 192.168.2.1



First, use the linksys article http://www.linksys.com/ca/support-article?articleNum=132275 to initally configure your routers and what ports to use.



Then connect a pc to the primary router, which i label 1.1 for 192.168.1.1. Your internet connection type is whatever your isp requires. the ip address should be 192.168.1.1



192.168.1.1 setup



1.1_setup.PNG
http://community.linksys.com/t5/image/serverpage/image-id/9525i743585F9A504CAC6/image-size/original?v=mpbl-1&px=-1





Then you need to use the adv routing tap.You need provide a route entry, seems any name will work. Then destination lan ip. in my case is 198.168.2.0 since my secondary router has an ip of 192.168.2.1. note the last digit of destination ip is 0 not 1. I used a gateway of 192.168.1.10. My primary router is 192.168.1.1 and my dhcp ip's start at 100. So I quess the gateway needs to be in the range of 192.168.1.2 - 99. Not really sure about this but just know what I've got works for me.



192.168.1.1 advance rounting



1,1.adv.routing.PNG
http://community.linksys.com/t5/image/serverpage/image-id/9526iDC9BE6796AFF4E09/image-size/original?v=mpbl-1&px=-1




Novw connect a pc to the secondary router with a ethernet cable. Use the static ip dropdown for internet setup. The internet ip address comes from router 1.1 adv routing. the gateway is the 1.1 router ip. i set my 2.1 router ip to 192.168.2.1. You need to have dhcp activated since this is a different subnet and router 1.1 can not provice ip's for it.



192.168.2.1 setup



2.1.setup.PNG

http://community.linksys.com/t5/image/serverpage/image-id/9527iE936F763FA3DDF71/image-size/original?v=mpbl-1&px=-1













Then NAT needs to be turned off on router 2.1. Some screens might call this mode and give you options of gateway or router. Select router. So for the lan connected to router 2.1, lan ip's will come from router 2.1, wan stuff will be gatewayed from router 1.1



192.168.2.1 advance routing



2,1.adv.routing.PNG

http://community.linksys.com/t5/image/serverpage/image-id/9528i7106CFCE91AD1898/image-size/original?v=mpbl-1&px=-1