Hi,
The one which you mentioned is not the right one,
A simple technique to get the Inverse mask is as
1.From you example let say you want to aggregate 192.168.1.10 to
192.168.1.15,First of all aggregate this addresses and find the summarized
mask.
The summarized mask in this case is 192.168.8/29 (ie 255.255.255.248)
2.To get the inverse mask subtract 255.255.255.248 from 255.255.255.255
which comes out 0.0.0.7
3.The result is 192.168.1.8 0.0.0.7
Kind Regards /Thangavel
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"r
Paul"
cc:
Sent by: Fax
to:
nobody@groups Subject: Help with extended
access lists [7:40904]
tudy.com
09/04/2002
10:12
Please
respond to
"r
Paul"
Hello wondered if anyone can explain.
I have extended access lists working fine.
I have a few blocks of ip address I want to add to list and they are not
all
consequtive. What I want to do is use the minimum entry to cover each
block.
i.e
Say I had several like this 192.168.1.10 to 15 etc etc
I want to make a single entry for every consequtive block. I do not own the
whole range or subnet. Can I do something like this.
access list 101 permit tcp 192.168.1.10 0.0.0.6 193.26.1.52 eq www
What I am wanting to clarify is if I have the wildard bit right. In above
example was hoping that 0.0.0.6 would be 6 addresses (192.168.1.10 to
15)...have I understood this right?. do not want to match whole subnet with
0.0.0.255 but that is the only other examples I have seen.
Many thanks
Paul
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