Hello,
I am a newbie in OpenWrt. After installation WhiteRussian I  opened for checking  pcflank.com and ups...
Some ports was opened, external ping for my computer was possible. After reading manuals I found that I have to configure firewall over file firewall.user.  However I was not very successful in this configuration...
Finally I had to reflash my rooter  because of lost connection with outer world. Could somebody place sample script for firewall.user file that help to make  pcflank.com checking successful. I have 54gl and simple home network for 3 computers.

Thank you for future help.