Re: Question about negated and non-negated variables in rules

["J-H. Johansen" <corinth () online no>]

J-H. Johansen wrote:

> Hi,
>
> I'm working on some ICMP rules and was wondering
> Recently I added a variable which contains our homenet with exclusions:
>
> var NOT_ICMP_SERVERS [$HOME_NET,!xxx.xxx.xx.xxx/32,!xxx.xx.xx.xx/32]
>
> This failed while running a check so I've also tried:
>
> var ICMP_WHITELIST [xxx.xxx.xx.xxx/32,xxx.xx.xx.xx/32]
> var NOT_ICMP_SERVERS $HOME_NET !$ICMP_WHITELIST
>
> this one doesn't fail but it doesn't work either.
>
> var ICMP_WHITELIST [xxx.xxx.xx.xxx/32,xxx.xx.xx.xx/32]
> var NOT_ICMP_SERVERS [$HOME_NET,!$ICMP_WHITELIST]
>
> fails as well.
>
> Any clues as to how this must be done ?

And does anyone have a clue why bigbrother sent me this reply when I 
sent this mail ?


Subject: Symantec Mail Security detected that you sent a message 
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From: admin () unitedwaydenver org

Subject of the message: [Snort-users] Question about negated and 
non-negated variables in rules
Recipient of the message: "snort-users () lists sourceforge net" 
<snort-users () lists sourceforge net>

jens:H


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