-----Original Message----- From: Public [mailto:public-bounces@talk.mikrotik.com.au] On Behalf Of Mike Everest Sent: Thursday, 27 March 2014 7:28 PM To: public@talk.mikrotik.com.au; members@talk.mikrotik.com.au Subject: [MT-AU Public] 'null' value of firewall filter attribute

Hi Folks,

I've been doing some work using API for various remote/centralised configuration push applications, and I've come across a surprising

Duh, there it is! /ip firewall filter unset 1 dst-port I spoke too soon. (or is it 'asked to soon' ;-) Cheers! problem.

Surprising only because I never realised that I didn't know how to do it

until I

decided to try! :-D

Think winbox - we can enter a value against some firewall filter attribute, say 'src-port' for example, and then if we decide we don't want it any more, we can click that little 'up arrow' to null the value for that variable. We can see the difference when using ip firewall filter print:

With dst-port specified

1 ;;; test1

chain=input action=accept protocol=tcp src-address=1.2.3.0/24

dst-address=0.0.0.0/0 dst-port=25

After 'nulling' that dst-port value

1 ;;; test1

chain=input action=accept protocol=tcp src-address=1.2.3.0/24

dst-address=0.0.0.0/0

My question is how to do that in shell? I'm baffled! :-}

Regards, Mike Everest

www.duxtel.com.au

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