Re: iptables v1.3.4: "--dport unknown argument"


Dimitry wrote:
I have tried different ways of using iptables - from iptables manuals,
books etc.

For example:
# iptables -A INPUT -i eth0 -p udp --dport 41031 -j DROP

But I always have "--dport unknown argument".

What do I miss?

For reasons nobody seems to know, the '--port' abbreviation is only
valid for TCP. For UDP, you must use the full option name,
'--destination-port'.

DS

.

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