Input chain, traffic from interface lo

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Hi,

The current "Iptables Tutorial" contains the following lines:

$IPTABLES -A INPUT -p ALL -i $LO_IFACE -s $LO_IP -j ACCEPT
$IPTABLES -A INPUT -p ALL -i $LO_IFACE -s $LAN_IP -j ACCEPT
$IPTABLES -A INPUT -p ALL -i $LO_IFACE -s $INET_IP -j ACCEPT

where $LO_IFACE is "lo", $LO_IP is "127.0.0.1", $LAN_IP is "192.168.0.2" and
$INET_IP is "194.236.50.155". 

I fully agree with the first line but I am a bit puzzled by the other 2
lines. Is there any chance packets with source IP other than 127.0.0.1 to
come from interface lo?

Thanks in advance

Vesselin

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The text below was appended by the mailbox service provider. I should not be held responsible for it. Vesselin.

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