Revision cf51ea5b README

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Single bridge setup. Private IPs. Masquerade: 
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For security and not being able to change ip-mac-tap key: 
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# ebtables -t filter -D INPUT -i tap0 -j TAP0 
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# ebtables -t filter -D FORWARD -i tap0 -j TAP0
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# ebtables -t filter -X TAP0
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# ebtables -t filter -N TAP0 
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# ebtables -t filter -A TAP0 --ip-source \! 192.168.100.2 -p ipv4 -j DROP
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# ebtables -t filter -A TAP0 -s \! aa:00:00:8c:d3:a4 -j DROP 
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# ebtables -t filter -A INPUT -i tap0 -j TAP0 (for masquerading)
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# ebtables -t filter -A FORWARD -i tap0 -j TAP0 (for private lans)
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# ebtables -N FROMTAP0 
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# ebtables -A FROMTAP0 --ip-source \! 192.168.100.2 -p ipv4 -j DROP
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# ebtables -A FROMTAP0 -s \! aa:00:00:8c:d3:a4 -j DROP 
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# ebtables -A INPUT -i tap0 -j FROMTAP0 (for masquerading)
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# ebtables -A FORWARD -i tap0 -j FROMTAP0 (for private lans)
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# ebtables -N TOTAP0
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# ebtables -A FORWARD -o tap0 -j TOTAP0
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# ebtables -A OUTPUT -o tap0 -j TOTAP0
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# ebtables -A TOTAP0 -s 6e:10:e1:a0:c3:0f -j ACCEPT (from gateway)
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# ebtables -A TOTAP0 -s \! aa:0:0:8c:d3:a4/ff:ff:ff:ff:0:0 -j DROP 
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Private LANs: 

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