routing between 2 subnets

I have a 2 subnet (internal) network connected to a redhat 7.3 box with 2 nics. The linux box is the gateway to the internet for my 2 lans via ip MASQ configured in ipchains. Linux is connected to subnet A on eth1 and the internet on eth0 (just for clarity) for subnet B I have a linksys BEFW1154 which connects to subnet A throught the WAN port. I changed the linksys to router mode instead of gateway mode and the static routes are configured on both the linksys and the linux boxes. Here is the problem:  subnet A CAN communicate with subnet B and vise versa and Subnet A CAN access the internet but Subnet B CANNOT.

here is a layout of my configuration:

internet--Linux--LAN1-------------------------------------------LAN1--Linksys--LAN2
      |                   |                                                            |                    |
 68.x.x.x ---/---192.168.0.x                                     192.168.0.x---/--- 192.168.1.x(cannot
                                                                                                         (access public ips)  
hfc_docsisAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

paullamhkgCommented:
have a check this document which can give you the idea of using the iproute and  build the secure network http://lartc.org/howto/index.html
paullamhkgCommented:
also you can have a check this one http://www.tldp.org/HOWTO/IP-Masquerade-HOWTO/

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
hfc_docsisAuthor Commented:
The problem was with my ipchains setup. I didnt have a rule to mask out from subnet B.
The statement was
ipchains -A forward -j MASQ -i eth0 -s 192.168.1.0/24 -d 0.0.0.0/0

Thanks
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Linux Networking

From novice to tech pro — start learning today.