What effect does the following command have on TCP packets?

LPI 303-200 Question Answer

iptables- A INPUT -d 10 142 232.1 -p tcp -dport 20:21 -j ACCEPT

Forward all TCP traffic not on port 20 or 21 to the IP address 10.142 232.1

Drop all TCP traffic coming from 10 142 232.1 destined for port 20 or 21.

Accept only TCP traffic from 10.142 232.1 destined for port 20 or 21.

Accept all TCP traffic on port 20 and 21 for the IP address 10.142.232.1

303-200 PDF/Engine

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