iptables kills my networking

[dequeued]

I am walking through the instructions on http://gentoo-wiki.com/HOWTO_Iptables_for_newbies

After I follow the instructions to enable packet filtering in my kernel, my networking doesn't work.
My wireless network associates with an access point, but I can't send or receive any packets, neither can my hardwired Ethernet.

What should I do??

[dequeued]

I made sure to completely unmerge iptables, and I still don't have access to any networking.
My hardware is working, I can associate with wireless networks, but I can't do dns resolution or any tcp networking.

[Hu]

You should start by posting some information. What is the output of emerge --info ; iptables-save -c ; for a in /etc/conf.d/net* ; do echo $a ; echo ; nl $a; echo; done?

[cyrillic]