Hi Sean, Russell, Cristian and All,
Thank you very much for all your help, you guys are really life saver!
As a beginner, my understanding is the problems were caused by the
(different) ways U16.04 and U16.10 handle/response to the command of
"ifconfig" as mentioned by Sean!
The solution is, as suggested by Sean, modify/change line 134 to ;
EXTIP="`$IFCONFIG $EXTIF | $AWK '/inet\s/ { print $2 }'`"
Thanks again Sean!
Also thanks for Russell and Cristian, you two show me the correct way
for diagnosing the problems and I have learnt a lot.
Thanks again!
Best regards,
Victor Mong
On 27/10/2016, Cristian Ilyes via luv-main <[email protected]> wrote:
> Hi Victor,
>
> On 27/10/16 16:02, Chung Kin Mong via luv-main wrote:
>> Dear All,
>>
>> I have a "iptables script file" which I copied from the net that work
>> for years, it stopped working yesterday after I upgrade from Ubuntu
>> 16.04 to 16.10. I am a beginner so the only way for me to diagnose the
>> problem is to comment out line by line to see what cause the problems,
>> my finding as follows;
>>
>> 482 $IPTABLES -A INPUT -i $EXTIF -s $UNIVERSE -d $EXTIP -m state --state
>> \
>> 483 ESTABLISHED,RELATED -j ACCEPT
>> error message;
>> Bad argument `state'
>>
>> offending line;
>> 527 $IPTABLES -A OUTPUT -o $INTIF -s $EXTIP -d $INTNET -j ACCEPT
>> error message;
>> Bad argument `192.168.0.0/24'
>>
>> offending line;
>> 542 $IPTABLES -A OUTPUT -o $EXTIF -s $EXTIP -d $UNIVERSE -j ACCEPT
>> error message;
>> Bad argument `0.0.0.0/0'
>>
>> offending line;
>> 592 $IPTABLES -t nat -A POSTROUTING -o $EXTIF -j SNAT --to $EXTIP
>> error message;
>> iptables v1.6.0: option "--to" requires an argument
>>
>> Also, variables INTNET=”192.168.0.0/24” and UNIVERSE=”0.0.0.0/0”
> It looks like all your problems actually comes from the $EXTIP variable.
> check the beginning of the script if it is initialised.
> I guess is the External IP address. It might be just assigned like
> EXTIP="xxxx" or your script might try to get it from the interface. If
> your script pools it from the interface, then that part might be stuffed.
> The common issue with some major releasese is the new rules of naming
> interfaces.
> make sure that EXTIF wasn't changed.
> Running the script with "bash -x script_name" will show you that $EXTIP
> is blank
>
> Regards,
> Cristian
>>
>> I have searched the net for answers but most of them indicate
>> something like "miss typing" etc. However, as the file work fine up to
>> Ubuntu 16.04 (I have not touch the file in any way) so something must
>> have changed in 16.10 and I am out of ideas.
>>
>> Thanks in advance for the assistance!
>>
>> Best regards,
>>
>> Victor Mong
>> I am a beginner so the
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