routing between two lans

I have one lan connect using a Linksys wirless nat router, i also have a testing/learning network with 5 pc’s, Cisco 3550 switch and 2600 router with 2 ethernet interfaces. Lan A (Linksys wireless) 192.168.1.0 | Lan B (testing/learning) 192.168.2.0. The 2600 router e/0 address 192.168.2.1 e/1 192.168.1.2. Linksys address 192.168.1.1

I want to beable to get out to the internet from the test/learning network. I have rip protocal enabled, network 192.168.1.0 and .2.0
I can ping both interfaces…but can not get out. I have been searching for some direction to no luck. If someone can maybe point me in the right direction I would appreciate it.

thanks,
Mark