From: Montiean (noktes@bellsouth.net)
Date: Sat Nov 12 2005 - 22:32:39 GMT-3
Additional comment on R3 groups,
If we use wildcard 0.58.255.255 --> we will include some range that we don't need
if we use 0.48.255.255 -- this is exactly macth.
However, boths are fine
-Montiean
>
> From: "Cisco Nuts" <cisconuts@hotmail.com>
> Date: 2005/11/12 Sat PM 07:29:58 EST
> To: ChoonHo.Loi@getronics.com
> CC: ccielab@groupstudy.com
> Subject: RE: Weird MCast ACL - ??
>
> Thank you very much!
>
> Hopefully, this clears up things for other people like me.
>
> Sincerely.
>
> --------------------------------------------------------------------
>
> From: "Loi, Choon Ho" <ChoonHo.Loi@getronics.com>
> To: "Cisco Nuts" <cisconuts@hotmail.com>
> Subject: RE: Weird MCast ACL - ??
> Date: Sat, 12 Nov 2005 22:29:31 +0800
>
> R3 as RP for groups: Second Octet225.10.0.0 -
> 225.10.255.255 0000 1010225.26.0.0 - 225.26.255.255 0001 1010225.42.0.0
> - 225.42.255.255 0010 1010225.48.0.0 - 225.48.255.255 0011 0000
> ------------------AND 0000 0000
> ---> 0XOR 0011 1010 ---> 58 my
> answer: 225.0.0.0 0.58.255.255
> Solution:----------------> 225.10.0.0 0.48.25.255 R4 as RP for groups:
> first & second octet226.37.0.0 - 226.37.255.255 1110 0010 0010
> 0101226.45.0.0 - 226.45.255.255 1110 0010 0010 1101227.37.0.0 -
> 227.37.255.255 1110 0011 0010 0101227.45.0.0 - 227.45.255.255 1110
> 0011 0010 1101 ----------------------------AND
> 1110 0010 0010 0101 ---> 226 37XOR
> 0000 0001 0000 1000 ---> 1 8 som Solution:-------------->
> 226.37.0.0 - 1.8.255.255
>
> ------------------------------------------------------------------------
>
> From: Cisco Nuts [mailto:cisconuts@hotmail.com]
> Sent: Saturday, November 12, 2005 6:45 PM
> To: Loi, Choon Ho
> Subject: RE: Weird MCast ACL - ??
>
> Would you kindly explain - if you don't mind?
>
> I just cannot get it !!
>
> :-(
>
> --------------------------------------------------------------------
>
> From: "Loi, Choon Ho" <ChoonHo.Loi@getronics.com>
> To: "Cisco Nuts" <cisconuts@hotmail.com>
> Subject: RE: Weird MCast ACL - ??
> Date: Sat, 12 Nov 2005 18:36:40 +0800
> >I agree with 226.37.0.0 1.8.255.255
> >But, for the first one, my answer is 225.0.0.0 0.58.255.255
> >
> >-----Original Message-----
> >From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
> Of
> >Cisco Nuts
> >Sent: Saturday, November 12, 2005 6:16 PM
> >To: ccielab@groupstudy.com
> >Subject: Weird MCast ACL - ??
> >
> >Hi Group: I have tried to understand this crazy acl. and just cannot
> get
> >it.How in the world do I get an even number in the wildcard mask?I
> wrote
> >down the 1's and 0's and tried to create a mask based on it but oh!
> boy
> >- was I way off?If I get such an acl in the exam, I know I am
> sc****!!
> >Here
> >goes: R3 as RP for groups: 225.10.0.0 - 225.10.255.255 225.26.0.0 -
> >225.26.255.255 225.42.0.0 - 225.42.255.255 225.48.0.0 -
> 225.48.255.255
> >Solution:----------------> 225.10.0.0 0.48.25.255 R4 as RP for
> groups:
> >226.37.0.0 - 226.37.255.255 226.45.0.0 - 226.45.255.255 227.37.0.0 -
> >227.37.255.255 227.45.0.0 - 227.45.255.255 Solution:-------------->
> >226.37.0.0 - 1.8.255.255 Sincerely.
> >
> >_______________________________________________________________________
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>
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