SuSEfirewall config

I'm trying to set up a SUSE router/firewall. I have 3 nics installed in the Linux box: 2 for internal subnets, 1 for external connection.

2 internal networks are 10.71.42.0 sm 255.255.255.128 and 10.71.42.128 sm 255.255.255.224

I enable forwarding linux box and it works fine. My 2 internal machines can ping each other.

When I turn on the firewall, I lose ping between the internal machines. I can ping the local machine, the local gw, and the gw for the other subnet, but get no response from the host on the other subnet.

Turning off the firewall doesn't seem to fix the problem, I have to reboot the router machine.

What am I overlooking?
hullc65203Asked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

x
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.

chad_rCommented:
Can you post the output of "iptables -L"?  That lists the chains configured on the firewall.  Also, while it's running you can attempt to flush the table with "iptables -F" which will flush the chains.  I'd be curious if things start working again after this.  If your default policy is "drop" then it won't, but it will remove all the other rules in place.  You should be able to restore them by simply rebooting, but this would be an interesting test.
0

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
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 Distributions

From novice to tech pro — start learning today.