shorewall; virtual interfaces and ppp0

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http://www.linuxquestions.org – hello, i have: eth0 with subnet and eth0:0 with subnet From eth0 i can only permit samba connections to eth0:0 From eth0:0 i can only permit http connections to eth0 Should i create another zone? help on this pls Also, second question. I have always worked with ethernet cards, but now i want to expand and i usually hear about pppX devices... can someone explain me about them? so can i connect a xDSL cable to them and directly work without the isp router?? (HowTos)