Its a wildcard to match any other string characters in a URL.

http://192.168.1.1/mydirectory/default.ida


/mydirectory/  would be matched by the *.


Regards,

Brandon Carroll - CCIE #23837
Senior Technical Instructor - IPexpert
Mailto: [email protected]
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On Apr 5, 2010, at 10:23 AM, Kingsley Charles wrote:

> I get your point Brandon. But I am not understanding the purpose of "*" in 
> this configuration.
>  
>  
> With regards
> Kings
> 
> On Mon, Apr 5, 2010 at 10:49 PM, Brandon Carroll <[email protected]> 
> wrote:
> I don't think this is a string that matches the same as standard regular 
> expressions that you would see in IPS or L7 class-maps on an ASA.  Notice the 
> phrasing:
> 
> R6(config-cmap)#match protocol http url ?
>   WORD  Enter a string as the sub-protocol parameter
> 
> R6(config-cmap)#match protocol http url 
> 
> Of course I've never actually used a full-on regular expression here but my 
> understanding is that you are only matching a string in a url which is why 
> you do three lines like this:
> 
> Router(config-cmap)#match protocol http url "*default.ida*"
> Router(config-cmap)#match protocol http url "*cmd.exe*"
> Router(config-cmap)#match protocol http url "*root.exe*"
> 
> rather than one like this:
> 
> Router(config-cmap)#match protocol http url 
> "*default.ida*|*cmd.exe*|*root.exe*"
> 
> 
> Regards,
> 
> Brandon Carroll - CCIE #23837
> Senior Technical Instructor - IPexpert
> Mailto: [email protected]
> Telephone: +1.810.326.1444
> Live Assistance, Please visit: www.ipexpert.com/chat
> eFax: +1.810.454.0130
> 
> IPexpert is a premier provider of Self-Study Workbooks, Video on Demand, 
> Audio Tools, Online Hardware Rental and Classroom Training for the Cisco CCIE 
> (R&S, Voice, Security & Service Provider) certification(s) with training 
> locations throughout the United States, Europe, South Asia and Australia. Be 
> sure to visit our online communities at www.ipexpert.com/communities and our 
> public website at www.ipexpert.com
> 
> 
> 
> On Apr 5, 2010, at 10:11 AM, Kingsley Charles wrote:
> 
>> Hi Brandon
>>  
>> a*b will match aaaab, b, aab, ab.
>>  
>> *b is invalid as there is no character before "*" to repeat
>>  
>>  
>> Can you please explain what will [match protocol http url "*cmd.exe*] match?
>>  
>> With regards
>> Kings
>> 
>> On Mon, Apr 5, 2010 at 10:34 PM, Brandon Carroll <[email protected]> 
>> wrote:
>> Kings,
>> 
>> I dont think you need the "." before or after.  The "*" should account for 
>> that. 
>> 
>> Regards,
>> 
>> Brandon Carroll - CCIE #23837
>> Senior Technical Instructor - IPexpert
>> Mailto: [email protected]
>> Telephone: +1.810.326.1444
>> Live Assistance, Please visit: www.ipexpert.com/chat
>> eFax: +1.810.454.0130
>> 
>> IPexpert is a premier provider of Self-Study Workbooks, Video on Demand, 
>> Audio Tools, Online Hardware Rental and Classroom Training for the Cisco 
>> CCIE (R&S, Voice, Security & Service Provider) certification(s) with 
>> training locations throughout the United States, Europe, South Asia and 
>> Australia. Be sure to visit our online communities at 
>> www.ipexpert.com/communities and our public website at www.ipexpert.com
>> 
>> 
>> 
>> On Apr 5, 2010, at 9:43 AM, Kingsley Charles wrote:
>> 
>>> *
>> 
>> 
> 
> 

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