I have 2 Win 98 Pc's connected to a hub which I have Linux connected to. My network worked fine for 4 Months, but a few days ago, I powered off my machine and I cant ping My pc's oand they cant ping My linux. The 2 PC's cant see each other. I use Roaring penguin adsl and when I first boot-up, I cant even ping my my 2 ethernet cards on My Linux box internally. Then I run my firewall script with masquerading and IPV4 turned on and I CAN see my internal ETH cards but NOT my EXTERNAL PC's. this problem happened several times before, but after a few re-boots, it fixed its-self. Please help.